Knowing that you have the right equipment can help boost your home entertainment setup. When it comes to choosing between an amplifier and a receiver, many newcomers to AV technology may require some additional context to understand what will best suit their system.

Should you buy an amplifier or a receiver? If you only need to amplify audio from a playback device (TV, smartphone, turntable, etc.), then a “regular” integrated amplifier is the unit to purchase. If you need amplification along with a radio tuner and video functionality, then an AV receiver is the unit to buy.

In this article, we'll break down amplifiers and receivers in greater detail to give you the information you need to make an informed purchasing decision.

Amplifiers Vs. Receivers

It is best for those seeking to enhance their home system’s sound quality to understand better what a receiver and an amplifier actually do. Since there's significant overlap in the purpose of the units, it is best to learn the differences between them so that you can complete the home theatre system of your dreams.

What Is An Amplifier?

Amplifiers are designed to function as standalone devices or as components or circuits within a device. An amplifier is an electronic device that gives an incoming audio signal a boost in level.

There are numerous examples of amplifiers in audio, though when we're discussing home audio systems, we're almost always discussing integrated amplifiers.

Integrated amplifiers have both a preamplifier and a power amplifier.

Preamplifiers bring low-level signals up to line level, while power amplifiers bring line level signals up to speaker level.

In terms of “low-level” signals, we're typically concerned with phono level outputs from turntables and record players. An integrated amplifier's preamp (or a standalone preamp) will boost this signal to line level.

Most recorded audio signals are considered “line level”. This includes analog and digital sources. Line level signals are not strong enough to drive loudspeakers. An integrated amplifier's power amp (or a standalone power amp) will amplify the signal strength in order to provide the speakers with sufficient levels so that the loudspeaker drivers can effectively produce sound.

Related article: Are Audio Amplifiers Analog Or Digital Devices?

So, if you're only concerned with amplifying audio and do not plan on ever needing video functionality or a radio tuner, an amplifier is a worthy investment.

Furthermore, if you aren't running phono level signals, you can get away with a power amplifier rather than an integrated amplifier to save on costs.

Note that an amplifier is a single unit. If you purchase one with proper inputs and outputs, you can decide later whether you want to connect a radio tuner, preamp, etc., to the system. Being able to mix and match like this can give greater control over unit selection and make for easier upgrades at the expense of space and higher price points.

What Is A Receiver?

A receiver is effectively an amplifier with additional controls, often including video, remote control, and a radio tuner. It is one of the most fundamental parts of any entertainment system, performing a range of essential tasks that connect each piece of your sound system together.

With the capacity to host numerous devices such as game consoles, home video players, projectors, TVs, and speakers, a good receiver makes every device in your system functional and easy to use.

Have you ever experienced manually switching cables as you toggle through your various devices? If so, you'll likely enjoy having a receiver that saves you the time and effort of reaching for cables at the back of your player only to retrace your steps when you decide to switch devices back.

By enabling users to automatically switch speaker modes to provide them with an awesome surround sound experience, receivers come in extremely handy as they offer great control over an audio system’s numerous options.

With the capacity to accommodate most of your multi-media devices, receivers offer instant advantages to your sound system by effortlessly advancing its sound and performance.

Receivers handle the sound that comes from the various consoles and connected devices, intricately advancing and intensifying their quality to allow each tonal element to feel and sound better.

If you want audio-video and radio functionality in a single unit that also includes an amplifier, then a receiver is the choice for you.

While dedicated amplifiers tend to offer better sound quality-to-price ratios, there's no debating the advantages of video and radio functionality. So, if you're at all concerned with multi-media, consider a single receiver unit over having to connect multiple devices together for your AV needs.

So, Should I Buy An Amplifier Or Receiver?

Let's break down the reasons why you'd want to buy either an amplifier or a receiver.

Reasons why you should buy an amplifier rather than a receiver:

• You're not concerned with radio, video, or other functions in a single unit.
• You want the best audio quality to price ratio.
• You're interested in the modularity of individual units and have space for them.
• You'd rather upgrade individual components as necessary than have to replace an entire receiver unit.

Once you've decided that an amplifier is the right choice for your system, there are more factors to consider. That's why I put together The Ultimate Power Amplifier Buyer’s Guide

Reasons why you should buy a receiver rather than an amplifier:

• You want audio, radio, video, or other functions in a single unit.
• You like the simplicity of a single unit.
• You have limited space.

If you've decided that a receiver is the right choice for your system, there are also more factors to consider. That's why I put together The Ultimate AV Receiver/Amplifier Buyer’s Guide.

Conclusion

Often the much cheaper and more conducive option for a sound system set-up, a receiver is the obvious choice for those who aim to impress during movie and game nights.

Although a high-quality amplifier may hold users back considerably in terms of functionality, they are the best choice for audio quality.

The post Receiver Or Amplifier: Which One Should I Buy? first appeared on My New Microphone and is written by Arthur Fox.

So you're wondering which AV receiver or amplifier you should buy, rent or otherwise try out. In this comprehensive buyer's guide, we'll go through everything worth considering before you make any decisions about an AV receiver or amplifier.

If you've found yourself asking, “Which AV receiver/amplifier should I buy?” this extensive resource is for you.

Please feel free to jump around this article and read all the additional resources I have provided links to.

Also, please note that new audio and video technology formats are regularly being added to the market. To make this guide as simple and evergreen as possible, I've refrained from digging too deeply into specific audio and video formats that may become obsolete in the future.

I discuss this further in the section on Futureproofing The AV Receiver/Amplifier.

With that, let's get into this comprehensive PA speaker buyer's guide to help you in your next AV receiver or amplifier purchase!

Related article:
• Top 11 Best AV Receiver Brands In The World

Table Of Contents

• What Is Your AV Receiver/Amplifier Budget?
• AV Receiver/Amplifier Number Of Audio Channels
• AV Receiver/Amplifier I/O
• AV Receiver/Amplifier Power Specification
• Audio Format Compatibility
• Wired & Wireless Connectivity
• Tuner Section
• Video Specifications
• Futureproofing The AV Receiver/Amplifier

What Is Your AV Receiver/Amplifier Budget?

The first thing to consider when making any purchase is your budget. Money can be a touchy subject for some, so I'll keep this section brief.

I would never advise anyone to overspend on any audio equipment. Know what you can realistically afford, and do your best to stay within those limitations, whatever they may be.

AV receivers/amplifiers, like many audio devices, range significantly in price. The market is rather large, and so there should be a good selection for any budget.

Note that some retailers offer payment plans, which could be an option.

Consider the cost-to-benefit ratio of the purchase of the AV receiver/amplifier. For example, if the receiver/amp is needed for business, perhaps stretching the budget is more appropriate. If, on the other hand, you don't plan on making money with the receiver/amp, perhaps a more conservative budget is appropriate.

Also, consider any additional accessories or upkeep that may be required for your AV receiver/amplifier.

Only you can determine your budget. All I'm here to say is that you should consider it.

Related My New Microphone article:
• How Much Do Audio Amplifiers Cost? (With Pricing Examples)

Back to the Table Of Contents.

AV Receiver/Amplifier Number Of Audio Channels

As the central piece of your home theatre or entertainment system, it's important that your AV receiver will be able to connect to all your devices. Additionally, it should offer as many, if not more, channels as your current speaker setup.

When selecting an AVR to suit our needs, the number of audio channels is critical to understanding how the unit will fit into the larger system.

Let's begin with the number of audio channels and quickly discuss the difference between a stereo receiver and an AV receiver.

A stereo receiver will contain a stereo amplifier or two monoblock amplifiers to drive a stereo pair of speakers (left and right channels). The receivers are different from stereo-integrated or power amplifiers by the fact that they offer radio tuners.

So stereo receivers have 2 channels.

On the other hand, AV receivers processed both audio and video (hence the name “AV” receiver). In addition to video capabilities, these receivers generally have more than two audio channels to accommodate subwoofers and surround sound speaker setups.

AV receivers will have varying numbers of channels, often given as “X.Y” specifications. For example, an AV receiver could have 5.2 channels or 7.1 channels. What does this mean?

The first number, “X,” tells us how many full-range speaker channels the receiver offers. The second number, “Y,” tells us how many independent subwoofer channels there are.

In our examples above, the 5.2 receiver will have five full-range speaker outputs and two subwoofer channels. The 7.1 receiver will have seven full-range speaker outputs and one subwoofer channel.

By that logic, an AV receiver with stereo plus subwoofer outputs would be considered 2.1.

Nowadays, there are plenty of different standards with varying numbers of channels. As an example, NHK Science & Technical Research Laboratories has developed Ultra High Definition Television, which requires a surround sound component of 22.2.

When set up properly, more channels will offer greater immersive results. However, these extra channels (and the speakers they drive) require larger investments and space.

Going big is fine if you have the money and a dedicated theatre room, but it may be overkill for a basement room with limited space and no acoustic treatment.

• Click the link to check out AV receivers at B&H Photo/Video
• Click the link to check out AV receivers on Amazon

• Click the link to check out stereo receivers at B&H Photo/Video
• Click the link to check out stereo receivers on Amazon

Related article: The Ultimate Power Amplifier Buyer’s Guide

AV Receiver I/O

Let's move beyond the number of channels (speaker outputs) into our discussion on the general input/output specifications of audio-video receivers.

Keeping to audio-only I/O, we should be aware of the following potential inputs and outputs:

• Pre outputs: pre outputs generally mimic the speaker outputs in number but bypass the internal power amplifiers of the AV receiver, thereby outputting lower-level signals. Using pre outputs, we can send the audio outputs to their own dedicated external power amplifiers rather than using the AVR's amps.
• Phono inputs: phono inputs are designed to accept low-level phono signals from turntables and bring them up to line level for use within the receiver and beyond.
• Headphone outputs: headphone outputs output analog audio to drive headphones effectively.
• Radio tuner inputs: whether AM or FM, these radio receivers will pick up radio signals and decode them into audio for the AVR to use.
• Analog audio inputs: these inputs generally come in stereo coaxial pairs. Each pair is generally assigned to its own source, which can be chosen within the AVR.
• Digital audio inputs: these inputs generally come in stereo coaxial or optical pairs. Each pair is generally assigned to its own source, which can be chosen within the AVR.
• Setup mic input: some AVRs come with sound calibration technology that effectively measures the acoustics of a room and adjusts outputs accordingly. These systems feature a microphone, which will have its own audio input.

Now let's discuss the I/O that covers both audio and video:

• Composite video I/O: this is a relatively outdated format for analog connections featuring one yellow coaxial/RCA connector for video and red and white coaxial/RCA connectors for audio.
• Component (YPbPr) video I/O: this is another outdated analog format. The red and white coaxial/RCA connectors carry audio, but the video is divided into three components: one for luma (brightness) and two for colour information.
• USB: USB can carry both compressed and uncompressed video and audio digitally.
• HDMI: HDMI (High-Definition Multimedia Interface) is perhaps the most popular AV I/O on AV receivers. It transmits high-definition uncompressed video data and compressed or uncompressed digital audio data between HDMI-compliant devices.

Finally, we'll wrap up this section with the extra non-AV I/O possibilities:

• Trigger out: these outputs will effectively trigger other devices in the AV system to turn on/off as the AVR is turned on/off.
• Remote control I/O: remote controls work wirelessly via infrared wireless technology. The remote control I/O will allow different remotes to communicate with the AVR.
• RS-232: this I/O allows for serial communication transmission of data between the AVR and a computer.
• Network: this I/O relays data from the AVR to a larger network mainframe and can effectively connect the AVR to the internet and the streaming services on the internet.
• Antenna inputs: antennae inputs help with the transmission of wireless information, whether it's for radio, Bluetooth, or Wi-Fi.
• Power I/O: all AVRs need power to work and will have a power connection. Some AVRs will also have power outputs for USB devices and the like.

Back to the Table Of Contents.

Wired & Wireless Connectivity

Continuing from the I/O section, we should understand the wired and wireless connectivity options of our perspective AVRs.

As the centre of an entertainment system, the AVR will connect to plenty of different devices. For stationary devices such as the television and speakers, wired connections may be optimal. They're generally more stable than wireless connectivity and offer a truer signal transfer with the encoding and decoding necessary for wireless signal transmission.

Built-in Wi-Fi, Bluetooth, and AM/FM radio are typical wireless connections worth looking into with your next AVR purchase. The remote control is also worth considering, though this technology, like AM/FM radio, is commonplace with AV receivers today.

With Wi-Fi, we can access many proprietary wireless communication protocols, including Apple's AirPlay, Denon's HEOS, DLNA (Digital Living Network Alliance), Google's Chromecast, and Spotify's Connect3.

Bluetooth connectivity allows us to pair the AVR with any devices that also offer Bluetooth connectivity, with specifications defaulting to the lowest version of Bluetooth between the paired devices (backward compatibility).

Back to the Table Of Contents.

AV Receiver/Amplifier Power Specification

As discussed previously, AV receivers also act as power amplifiers that effectively drive the speakers they connect to. So, when choosing an AVR, we must ask ourselves how much power (how many watts) we need per channel and in total.

Unfortunately, power/wattage specifications are often deceiving, especially when we're trying to figure out how much power is available per channel.

Do your research to determine how much power is available per channel when all channels connect to speakers.

Pay attention to the rated nominal impedance of the speakers in question and the frequency response at which the specification holds true (ideally 20-20,000 Hz).

Also, look for total harmonic distortion ratings at max peak power.

Many specifications sheets will list the maximum peak power if only one or two channels are driven. As more channels are connected, less power will be available per channel.

Though most manufacturers won't give you the information you need regarding all channels driven, you may be able to find third-party tests that record the actual power ratings of higher-end AVRs. Check out soundandvision.com as a resource for such test results.

Having speakers with similar power handling ratings to the AVR's power output ratings will mean improved compatibility. Take note of the rated impedance of the AVR's power output and compare it to the speakers' rating input impedances. Amplifiers will deliver more power into lower impedance loads.

To learn more about speaker and amplifier impedance and how to match the two, check out the following My New Microphone articles:
• Why Do Speakers Need Amplifiers? (And How To Match Them)
• What Is Amplifier Impedance? (Actual Vs. Rated Impedance)
• The Complete Guide To Speaker Impedance (2Ω, 4Ω, 8Ω & More)
• Complete Guide To Speaker Power Handling & Wattage Ratings

When it comes to measuring how much power you'll need. Consider the size of the room. Smaller rooms need less power, and the fewer people in the room, the less power is needed. Though far from standardized, I recommend the following loose power requirements for small rooms:

• Under 500 square feet: 200 Watts RMS or less
• Under 1,000 square feet: 800 Watts RMS or less
• Under 2,000 square feet: 2,000 Watts RMS or less
• Under 4,000 square feet: 4,000 Watts RMS or less

Calculating exactly how much power you need is rather complicated. Once we have our speakers and AVR matched, we can determine how loud the system will be in a certain listening environment by calculating the speakers' sensitivity, the power being sent to the speakers, and our distance from the speakers.

For example, let's consider the following illustration to understand the relationship between amplifier power, speaker sensitivity, distance and sound pressure level.

In the illustration below, we'll use the examples of Speaker A (sensitivity rating of 84 dB SPL @ 1W/1m) and Speaker C (sensitivity rating of 90 dB SPL @ 1W/1m):

Take this information for a single speaker and understand that every speaker added (assuming equal build, distance from the listener, and output) will double the sound intensity, causing an increase of 3 dB SPL at the listener's position.

Furthermore, consider the following table of safe listening time limits at various decibel SPL levels (A-weighted) as defined by the NIOSH (National Institute for Occupational Safety and Health) and the OSHA (Occupational Safety and Health Administration:

For an in-depth discussion on amplifiers, speakers, and loudness, check out my Full Guide To Loudspeaker Sensitivity & Efficiency Ratings.

Beyond the specs of the AVR and its speakers, consider the method by which the AVR speaker outputs will connect to the speakers.

The AVR outputs may very well take bare speaker wire, while the speakers may have pin, spade or banana connectors. It's also worth looking into the proper speaker wire gauge for your specific situation. This has more to do with the speakers, but it's definitely a consideration to make when choosing your AV receiver.

Back to the Table Of Contents.

Audio Format Compatibility

Be aware of the audio formats on the market at the time of your purchase, and ensure the AVR is compatible with those you plan on using.

DTS and Dolby are at the forefront of new multichannel audio technologies, so look out for AVRs that have these formats.

Find out which formats you're interested in using and find a compatible AVR. Conversely, read through the AVR specs to see which audio formats you may be interested in incorporating into your system once you buy that AVR.

Back to the Table Of Contents.

Tuner Section

With so many options for entertainment with modern technology, it can be easy to overlook the old-school radio. That being said, looking into the radio tuner section is worth the extra time to ensure it's a good fit.

Since radio technology has been around for so long, it's pretty much been perfected. Therefore, the vast majority of AVRs will have more than adequate tuner sections.

Back to the Table Of Contents.

Video Specifications

Like audio formats, video formats and resolutions are continuously being improved upon.

From 1080p to 4k to 8k and beyond, choose an AVR with the resolution you need now and in the future.

You may also be interested in opting for an AVR with upscaling technology to effectively upscale standard-definition video signals to HD and beyond.

Back to the Table Of Contents.

Futureproofing The AV Receiver/Amplifier

With technological developments happening faster and faster, it can be difficult to keep up in the AV world.

While audio developments have a lot to do with new and improved surround sound formats, the realm of digital video is rapidly changing.

So, when choosing an AV receiver, it's important to consider the idea of futureproofing to ensure the AVR we choose today is not obsolete a year or even a few months from now.

Here are some tips for futureproofing your next AV receiver:

• Get an AVR with enough channels for now and in the future. You may be acquiring more speakers.
• Opt for more inputs and output than you need (especially HDMI). You may be acquiring more equipment in the future.
• Look for an AVR with all the most up-to-date video formats and resolutions. These are consistently improving, so choosing an AVR with up-to-date formats will keep it relevant for longer.

I made a point here to offer “evergreen” advice. Do your due diligence to find out what the most up-to-date AV technologies are today before choosing your AV receiver!

Back to the Table Of Contents.

The post The Ultimate AV Receiver/Amplifier Buyer’s Guide first appeared on My New Microphone and is written by Arthur Fox.

HDMI (High-Definition Multimedia Interface) has gained popularity worldwide because it is an effective means of carrying video. This article will explain how HDMI is used for communication in digital networks and whether it can carry audio signals.

Does HDMI carry audio signals? HDMI (High-Definition Multimedia Interface) carries both audio and video. As a multimedia interface, HDMI transmits high-definition uncompressed video data and compressed or uncompressed digital audio data between HDMI-compliant devices.

In this article, we'll focus the discussion on HDMI and how it carries audio signals.

What Does HDMI Carry?

Let's begin with the basics. HDMI can carry both audio and video signals. It is known for transmitting high-quality digital video signals and as a digital replacement for older analog video standards. More specifically, HDMI carries uncompressed video.

HDMI is popular for presentations at work or providing news feeds throughout a small area. HDMI is also used for entertainment purposes, so you'll find HDMI cables attached to your television, allowing you to watch movies or enjoy live streaming of music events.

In addition to digital video, HDMI will effectively carry digital audio (compressed or uncompressed) through the same cable. This allows you to have a more organized look in your personal space or when you're using digital gear at any event.

The versatility of HDMI cables makes it easy to connect your MacBook to another device to play music. You could also connect your television to your PC and enjoy audio files saved on the hard drive. In cases where two devices cannot be connected directly via HDMI, an adapter can often be used to facilitate the transmission of audio signals from one to the other.

A Brief Discussion On The Differences Between Digital And Analog Audio

It's important to reiterate that HDMI does not carry analog audio. Rather, it transfers digital audio. Let's briefly discuss the differences.

First, I'll state the difference between sound and audio. Sound is mechanical wave energy (longitudinal sound waves) that propagate through a medium, causing variations in pressure within the medium. Audio is made of electrical energy (analog or digital signals) that represents sound electrically.

For more information on the differences between sound and audio, check out my article What Is The Difference Between Sound And Audio?

So, audio is a representation of sound that can be stored and played back. Storage, recording and editing/mixing can all be done digitally or in the analog realm.

Analog audio is sound stored, recorded, transferred or played back via electrical, magnetic or mechanical means. Analog audio signals are alternating currents of electrical energy and are regularly converted from one form of energy to another. Take the following examples:

• A vinyl record is audio stored mechanically in grooves. A phonograph needle/stylus moves within the grooves, and the attached cartridge converts the mechanical movement into electrical (analog) audio signals.
• An audio tape is audio stored magnetically on magnetic tape. As the tape runs across the playhead, the electromagnetic imprint of the tape is read and converted into, once again, electrical (analog) audio signals.

The waveforms of analog audio are continuous representations of sound.

Digital audio, as we could assume, is made of digital data (binary data). The audio waveform, rather than being continuous, is presented as discrete amplitudes (defined by the bit depth of the digital resolution) at distinct intervals (defined by the sample rate or samples per second).

Analog audio tends to degrade when stored and certainly as it's reproduced. Analog audio signals also suffer from degradation as they travel through cable and audio devices.

Digital audio files can be duplicated infinite times without degradation and can easily be transmitted via streaming services, Bluetooth, HDMI and more.

Analog signals are required for playback, however. Digital signals will not drive headphones or speakers. Only analog signals can do that. Therefore, there are plenty of digital-to-analog converters (and analog-to-digital converters) in audio devices.

So, to wrap up this brief discussion, HDMI carries digital audio, which is easy to transmit. HDMI cables, then, either work or don't. They will not affect the audio signal quality since they only transmit digital information.

However, that is not to say that the DAC necessary for playback (or the playback system itself) won't affect the quality of the audio.

Related articles:
• Are Loudspeakers & Monitors Analog Or Digital Audio Devices?
• Are Headphones Analog Or Digital Audio Devices?
• Are Microphones Analog Or Digital Devices? (Mic Output Designs)

HDMI Audio Specifications

The baseline audio format for HDMI is stereo (uncompressed) PCM. If a device is to send or receive digital audio via HDMI, it must have this format or “greater”.

Other formats are, of course, supported. Here is a list of audio signal formats supported by the HDMI protocol:

• LPCM
• Dolby Digital
• DTS
• DVD-Audio
• Dolby Digital Plus
• Dolby TrueHD
• DTS-HD High-Resolution Audio
• DTS-HD Master Audio
• MPCM
• DSD
• DST
• Dolby Atmos
• DTS:X

HDMI (version 2.0 and above) allows up to 32 channels of uncompressed audio at the following bit depths:

• 16-bit
• 20-bit
• 24-bit

The 32 channels of uncompressed audio can have the following sample rates:

• 32 kHz
• 44.1 kHz
• 48 kHz
• 88.2 kHz
• 96 kHz
• 176.4 kHz
• 192 kHz

In addition to supporting Dolby TrueHD, DTS-HD, and other superb digital audio formats, HDMI also supports an audio return channel, which can essentially send audio information back and forth from your TV tuner to your receiver.

This automatically equalizes audio and video processing delays between different devices so the picture and sound stay in perfect sync.

With HDMI transmission of sound, you will experience less quality loss and enjoy theatre-quality experiences when playing music or enjoying the latest blockbuster film.

Compressed And Uncompressed Audio

HDMI can easily transmit both compressed and uncompressed audio. Audio files are often compressed to save space, allowing you to store several music files on your MacBook or other relatively small gear.

HDMI cables don't have a problem with compressed files.

HDMI actually performs better than component video cable when considering the quality of surround sound facilitated by it. Despite that, sometimes it may take a few adjustments before the sound is transmitted properly using HDMI when connected to your TV or computer.

Reduce Delays

When audio and video devices cannot communicate well, the result is often poor synchronization and a less-than-ideal experience.

With HDMI, you won't have to worry as much about delays due to the devices being different. Thanks largely to the return audio path, the audio-video sync won't slip out of sync due to the HDMI cable.

In terms of setup time (let's call it real-world delay), the simplicity of a single cable makes hooking up HDMI-compatible AV equipment super easy, thereby reducing the “delay” or time it takes to set up (and tear down) your systems.

Most gadgets nowadays are built to use HDMI. You can freely play audio with HDMI on all of these. As far as the future is concerned, it's likely that this means of transmission will be utilized for a while.

Using The Correct Settings

While HDMI works well with different types of devices, you'll always have to ensure that the settings are correct for each one that you're using.

Perhaps you're reading this article because you're not getting any audio transfer with your HDMI cable properly connected. The issues are likely with the devices themselves rather than the cable.

If your computer's settings aren't correct, you won't hear any sound. It's often not the cable's fault, and your device should be adjusted to fix the sound.

Ensuring the device settings are properly set will usually allow you to enjoy good sound quality with HDMI.

Of course, there are times when you're unable to hear the audio (or see video) because the HDMI cable that you're using could be faulty. In that case, you can simply change the cable to enjoy clear audio.

If you're using a cable box with your device, you'll usually need to flip a switch to indicate that you want sound sent out through the HDMI cable instead of some other attached cable.

Similarly, you'll need to change the audio settings on your computer to ensure sound is sent through the HDMI cable to the external device.

HDMI Vs Optical Cables

HDMI and optical cables both transmit digital audio, and you'll usually find one used to connect two digital devices. If you're using multi-channel audio, like Dolby Digital, you won't usually notice a difference in sound quality.

However, this seeming equity between HDMI and optical cables disappears when you're not using a multi-channel source. When high-resolution audio is available, HDMI is the preferred choice. It is designed for this type of situation and allows for a better listening experience than optical cables.

HDMI can be used with several high-resolution formats, including Blu-Ray. It can also transmit DTS HD Master Audio and Dolby TrueHD.

Some older devices do not support HDMI, so we won't benefit from the high-quality digital audio transfer. Additionally, if you're connecting an audio transmitter and loudspeakers within the system, HDMI is not usually necessary or even an option.

Although HDMI is very good at transferring audio, it's not always necessary to use it if you only plan to send audio and don't need to use video. Most pro audio and Hi-Fi equipment do not bother with HDMI, as there are plenty of other audio-specific connections on the market that work tremendously well.

To learn more about “Hi-Fi” equipment, check out my article What Is High-Fidelity (Hi-Fi) Audio?

Related Questions

Are AUX (Auxiliary) connectors & headphone jacks the same? The construction of the aux connector and the headphone jack is often the same: 3.5mm (1/8″) TRS. However, the “auxiliary connector” is universal for audio, while the “headphone jack” is, by its name, suited for headphones. Headphone jacks also come in different sizes and wiring schemes.

Further reading: Are AUX (Auxiliary) Connectors & Headphone Jacks The Same?

How do we connect speakers of all types to our computers? How we connect an external speaker to a computer depends on the type of speaker. Bluetooth speakers are connected wirelessly via Bluetooth; USB speakers connect via USB cables, and typical speakers require some sort of interface (whether internal or external) to connect to a computer.

Further reading: How To Connect Speakers To A Computer (All Speaker Types)

The post Does HDMI Carry Audio Signals? first appeared on My New Microphone and is written by Arthur Fox.

As we go further into the digital age, webcams are becoming a necessary tool for many individuals for professional and recreational purposes. Aside from its video-related performances, many people begin to rely on a webcam's audio capabilities and features.

Do webcams have built-in microphones? Webcams come with built-in microphones. The microphones in webcams that you purchase separately from computers are built into the webcams. Laptops, phones, and tablets have a built-in webcam and microphones of their own.

The guide will highlight several top-quality webcams on the market that have exceptional audio capability. This includes the Logitech C920, Razer Kiyo Pro, Microsoft LifeCam HD 3000, Mevo Start, and the Logitech Brio. Additional information related to webcams will also be discussed.

Knowing The Built-In Microphones In Your Webcams

In most cases, when you purchase a webcam, the packaging will specify what kind and the number of built-in microphones it has. Most webcams have a single built-in microphone, while others have two built-in microphones for improved audio quality.

However, despite the type or number of built-in microphones you have, the majority of webcams on the market are barely above average in terms of performance. This is also true with the built-in microphones in other devices, including laptops. 

The audio quality of microphones built into webcams will get the job done for the most part. However, they won't be good enough for professionals or any individual who requires top-of-the-line audio quality.

Therefore, many who need a higher-quality audio capability would most likely purchase their webcams and an external mic or headphones with mic capabilities.

With that being said, let's still consider a few examples of webcams with built-in microphones to get a sense of what's available on the market.

The People's Choice: Logitech C920

The Logitech C920 is considered one of the, if not the best, webcam on the market. Since its release in 2012, the Logitech C920 has been consistently ranked over its rival products. 

The Logitech C920 has two built-in microphones that are fitted on either side of the camera. The Logitech C920's audio capabilities and performance are considered above average for webcam standards due to the double microphones. Most webcams would only have a single-built-int microphone, so Logitech C920 has the advantage in webcam audio.

The Logitech C920 is still the best overall achiever across the board for its reliability, cost, quality, and overall performance. The Logitech C920 is currently priced at approximately $79.99. Below are the specifications of the Logitech C920 and why it makes it incredibly popular:

• 1080p HD Resolution
• Supports 720p/60FPS Streaming Video
• Background Removal Features
• Low-Light Correction Capabilities

With top-quality features and specifications at an affordable price, the Logitech C920 webcam will likely remain a top-rank webcam in the market for a while.

The Professional: Razer Kiyo Pro

Another popular choice for high-quality webcams is the Razer Kiyo Pro, the Razer Kiyo's “older sibling” and the latest addition to the Razer's webcam family. Just like its webcam counterparts on the market, the Razer Kiyo Pro has an omnidirectional microphone.

Based on several reviews, its built-in microphone performs on a standard level.

Compared to the top-tanked Logitech C920, the Razer Kiyo Pro does not come cheap. However, the Razer Kiya Pro reportedly delivers an overall performance that is worth its price. 

There are several reasons that the Razer Kiyo Pro is priced significantly higher than its other counterparts and ranked as one of the most popular webcams out there. Currently, the Razer Kriyo Pro is priced at $199.99. Below are the advantages of owning the Razer Kiya Pro:

• Incredible Resolution of 60FPS 1080P
• Ring Light with Smart Exposure, Focus, and Easily-Adjustable
• Built-In Tripod Mount
• High Definition Image with Great Contrast
• Detachable Cable

Using the Razer Kiyo Pro while live streaming, it also has the feature to choose between three fields of view for different scenes.

Further, you can also select a very clean and smooth 1080p 60FPS or an “HDR mode” for high-resolution and improved video quality during video call sessions.

The Affordable: Microsoft LifeCam HD-3000

The Microsoft LifeCam HD-3000  is considered one of the most popular webcams out there. This is true primarily because of its incredibly affordable price compared to the other webcams in the market.

Although, a webcam's quality will usually depend on the price you pay. Allegedly, the Microsoft LifeCam HD 3000’s mic does not have the best audio system. Some complain that the webcam’s built-in mic would sometimes make disruptive noises, such as:

• Echoes/latency
• Buzzing sound
• Static sound

Related article: How To Fix Microphone Echo And Latency In Your Computer (7 Methods)

Therefore, some people may recommend purchasing the Microsoft LifeCam HD 3000 alongside a mic or an ear/headphones with a built-in microphone.

The Microsoft LifeCam HD 3000 is designed for users who need an overall good-performance webcam at a competitive and affordable price. These are usually people who need a webcam to conduct simple web calls and not necessarily for work.

For its affordable cost and overall good performance, here is the list of features it has:

• Color Correction Feature
• 720P Resolution
• 360 Degrees Rotation
• Microsoft's TrueColor System Feature

Despite its average-quality features, the Microsoft LifeCam HD 3000 gets the job done. If you do not have any intricate or complicated tasks at hand involving webcams (maybe just for the daily video call with the family), the Microsoft LifeCam HD 3000 is likely the webcam for you.

On The Go: Mevo Start

Due to its being mobile and not being constrained in enclosed environments like most webcams, the Mevo Start has an overall better audio quality than some webcams because it has 3 built-in internal microphones. 

While many choose the Razer Kiyo Pro for work-related purposes in the office, the Mevo Start is considered one of the top-line mobile live-streaming webcams. Mobile does not necessarily mean using your phone (although many do), but just the ease of carrying the Mevo Start webcam around with you.

Below are some of the features the Mevo Start has:

• Multiple Audio Options, Including 3 Internal Built-In MEMS Microphone or External 3.5mm Input and USB-C Input
• 1080P Resolution
• Bluetooth or Wifi Connectivity Technology
• Smartphone Compatible
• Dedicated iOS and Android Mevo Camera App
• Live-Editing Features
• Over 6 Hours of Built-in Battery Life

Furthermore, the Mevo Start is incredibly popular for people who have professions requiring them to live stream while mobile. These professions include:

• Journalists
• Streamers (Twitch, Youtube, Facebook)
• Vloggers

However, the webcam is not only limited to the professions mentioned above. If you want a top-quality webcam with mobile features, pick up the Mevo Start, as it might be a great choice.

But with the extra features comes extra pricing, making Mevo Start a webcam with a significantly higher price and more expensive than other webcams on the market.

Resolution In 4K: Logitech Brio

Just like most of the higher quality webcams out there, the Logitech Brio double built-in microphone performs a little bit on the above-average level due to its noise-cancelling capability.

However, external audio systems are still recommended when purchasing this webcam. 

Although most video call apps, such as Skype, Zoom, or Google, do not support 4K video quality, the Logitech Brio's webcam already has the capability to do so.

With its superior video quality performance, the Logitech Brio is able to show every detail of an image, making it very sharp on its display.

Below are the other great features that the webcam is known for:

• Dual Built-In Noise Cancelling Omnidirectional Microphones
• Recording and Streaming up to 4K Ultra HD Resolution
• 1080P Full HD
• USB Connection-Powered (Must use USB 3.0 for 4K)
• Durable Metal Casing
• Built-in Autofocus
• 5X Zoom-In Feature in Full HD
• Auto Light Correction

If you are willing to wait for the video call applications to support 4K and are looking for a webcam capable of 4K HD resolution, then the Logitech Brio is the webcam for you.

Professions That Rely On Webcams With Built-In Microphones

As mentioned, many professions all over the world are digitizing. This evolution means that an increasing number of professions need to rely on tools that give them digital access.

Many professionals who rely on high-quality webcams for their jobs choose webcams include:

• Video Game Streamers
• Remote Workers
• Online Tutors
• Job-Provider & Recruiting Agencies

Conclusion: Webcam Audio Capabilities Are Average At Best

Almost all webcams on the market come with a built-in microphone. Although the built-in microphones are great for a webcam's standard, built-in microphones on webcams are subpar or average at best.

You can get much better audio quality with external microphones or earphones with built-in microphones, as they are made precisely for audio-based purposes.

A Note On USB Microphones

For those who are not overly confident with audio, a USB microphone can be a simple and effective solution to improve the audio. USB mics generally sound much better than the built-in microphones of webcams, laptops and cameras.

Many USB mics have automatic driver downloads and are designed to be “plug and play”. This means that users can plug the USB mic into their computer and instantly access improved audio. This is certainly worth considering if the webcam audio is not up to your standard.

Related article: How Do USB Microphones Work And How To Use Them

Related Questions

Do cameras have microphones? Many modern DSLR cameras and video cameras will have internal microphones. These cameras will also generally have microphone inputs to connect higher-quality microphones for improved audio.

Are microphones built into laptops? Many modern laptops will have internal microphones. In fact, they will have multiple microphones for noise-cancellation and improved audio quality. However, connecting a professional USB or XLR microphone to the laptop will nearly always improve the audio quality.

Sources

• https://www.phone.com/phone-support/kind-camera-microphone-speaker-can-use-video-conferencing/
• https://yourbusiness.azcentral.com/telephone-headset-work-16404.html
• https://www.techradar.com/news/computing-components/peripherals/what-webcam-5-reviewed-and-rated-1027972
• https://wistia.com/learn/production/gear-review-microphone-webcam-affordable-setups

The post Do Webcams Have Built-In Microphones? (With Examples) first appeared on My New Microphone and is written by Arthur Fox.

The terms “amplifier” and “receiver” are very similar yet distinguishable when it comes to audio/sound systems.

If you're wondering which device would be best for your system or are just curious as to the differences between the two, then you've come to the right place!

What are the differences between an amplifier and a receiver? The main difference between a “regular” integrated amplifier and a receiver regarding sound systems is that a receiver has a built-in radio section, and an amplifier does not. So, then, all receivers are technically amplifiers (with radio functionality), but not all amplifiers are receivers.

In this article, we'll first define what amplifiers are and then look at how receivers build upon the functionality of such amplifiers. We'll wrap up the article by looking at examples of amplifiers and receivers to help solidify our understanding of the difference between the two devices.

What Is An Amplifier?

Let's get started by defining what an amplifier is.

What is an amplifier? An audio amplifier is an electronic device that increases an audio signal's amplitude (power/voltage/current). Amplifiers utilize electric power (from a power supply) to amplify the audio signal by a specified amount of gain (the ratio of output voltage, current, or power to input).

Amplifiers come in a wide variety of forms. They can be designed within various audio equipment types (microphones, hardware processors like equalizers and compressors, active loudspeakers, powered mixers, etc.).

The term amplifier also applies to individual audio components such as operational amplifiers, transistors and vacuum tubes.

They can also be designed and manufactured as standalone units, which is the style we'll focus on today.

There are plenty of ways to categorize amplifiers. For example, we could split them up by class (Class A, Class A-B, Class B, etc.), by the number of channels (monoblock, dual mono, stereo, surround, etc.), and more.

The factor we're most concerned with in this article for standalone amplifiers found in most consumer-grade and audiophile sound systems is that referring to the signal type being amplified.

By that, I mean whether the amplifier is a preamplifier, a power amplifier or an integrated amplifier.

What is a preamplifier? A preamplifier is an amp that amplifies low-level signals up to what is known as line level. Preamps are typically required to bring up a microphone signal, some instrument signals, and/or signals from vinyl records up to line level to properly drive power amplifiers or process and record line-level signals.

What is a power amplifier? A power amplifier is an amp that amplifies line level signals (from a preamp, some electronic instruments or most recorded audio formats) up to speaker level in order to drive loudspeakers properly.

What is an integrated amplifier? An integrated amplifier is a single unit that combines a preamplifier circuit and a power amplifier circuit.

Home sound systems (entertainment systems, home theatres, etc.) will require, at the very least, a power amplifier to drive passive speakers. Many people opt for integrated amplifiers for the additional capabilities of amplifying low-level signals.

However, much of the audio we access today (from streaming, hard drives, CDs, etc.) is already at line level and thereby only requires a power amplifier.

Related article: Top 11 Best Power Amplifier Brands In The World

My New Microphone has plenty of information on amplifiers. Check out the Amplifier category of the website by clicking here.

What Is A Receiver?

What is a receiver? In terms of audio/sound systems, a receiver is an electronic device that contains an amplifier (often a stereo-integrated or surround sound integrated amp) and some sort of built-in radio tuner.

Receivers will often have a visual component as well (making them “audio/video receivers” or AVRs). These devices will not only amplify and route audio from various sources. They will also process video signals and route them to their intended displays (television, monitor or video projector, etc.).

Note that Bluetooth is a popular method of transferring audio wirelessly in the modern world of technology. The Bluetooth protocols actually utilize radio waves (at and around 2.4 GHz) to transfer information digitally.

However, when it comes to semantics, if an amplifier has Bluetooth functionality but does not have a regular radio tuner, then it is still labelled an amplifier (and not a receiver).

But this is all just terminology. So long as you read the specs about what a unit does, you'll be able to discern whether it's the right product for your setup! More on that in a moment.

Related article: Top 11 Best AV Receiver Brands In The World

What Should You Choose For Your System?

So, what should you choose for your own sound system? If you want radio capabilities or a single unit for audio and video, you'll need a receiver. Otherwise, I'd suggest opting for an amplifier.

Without any additional circuitry for the radio unit and video hardware, amplifier manufacturers can improve the amp's performance-to-price ratio while also reducing the unit's physical space.

In other words, amplifiers are more “focused” on their task of amplifying audio and will generally perform better than their equally-priced receiver counterparts.

Strictly for audio purposes, you'll likely get a better product in an amplifier. However, it can be nice to have a single unit to take care of your home AV needs, in which case an AV receiver is the logical choice.

Of course, there are many specifications to consider when choosing either an amplifier or a receiver for your speaker setup. These specs include, but are not limited to, the following:

• Number of channels (mono, stereo, surround, etc.)
• Output impedance
• Power rating
• Tone control

For more information, check out the following My New Microphone articles:
• Receiver Or Amplifier: Which One Should I Buy?
• The Complete Guide To Power Amplifier Specifications & Data

Amplifier Examples

Let's look at a few examples of standalone audio amplifiers. We'll discuss an example of a preamplifier, a power amplifier and an integrated amplifier.

Preamplifier

The NAD C 165BEE is a stereo preamplifier with a phono section for connecting to phonograph/record players.

Power Amplifier

The Niles SI-2150 is a stereo power amplifier with independent right and left-channel level controls and a mono bridged mode.

Integrated Amplifier

The Yamaha A-S301 is a stereo integrated amplifier with both analog and digital inputs.

We could go even further and begin to discuss the preamplifiers and power amplifiers used for microphones, instruments and recording technology at large. However, in this article, we'll keep our focus on amplifiers and receivers for consumer applications.

My New Microphone has plenty of additional resources on amplifiers. Consider reading through the articles in the Amplifier category.

Receiver Examples

Let's now turn our focus to a couple of examples of audio receivers.

The Denon AVR-X7200W is an integrated network receiver with a left/right-separated monolithic amplifier design. It has Wi-Fi, Bluetooth and Dolby Atmos capabilities and can handle up to 11.2 channels.

The Sony STRZA5000ES is a 9.2-channel AV receiver with Dolby Atmos and DTS:X capabilities. It boasts 130 W of power per channel and offers automatic calibration of each channel to tailor its performance to the listening environment.

Related Questions

Does an amplifier improve sound quality? Amplifiers increase the signal level of audio and, when driving transducers (speakers, headphones), increase the perceived loudness of the sound. Amplifiers will have some effect on the quality of the audio signal, and some amplifiers will sound better than others, both subjectively and objectively.

Related article: Do Amplifiers Improve Sound Quality?

Do loudspeakers need amplifiers? Loudspeakers require amplifiers to be driven properly. Amplifiers will amplify line level (or mic, instrument or phono level) signals to speaker level and convert the audio signal's impedance. The resulting power and impedance of the amplifier output signal can drive the speaker(s) to produce adequate sound levels.

Related article: Why Do Speakers Need Amplifiers? (And How To Match Them)

The post What Are The Differences Between An Amplifier & A Receiver? first appeared on My New Microphone and is written by Arthur Fox.

Whether you've got an entertainment room or a full-out home theatre, a great AV receiver will be a key component to the setup.

There are plenty of brands/manufacturers that produce AV receivers. Some are better than others (technologically, price-wise, service-wise, etc.). This article will focus on the best receiver brands on the market today to help you choose the best option for your setup, whatever that setup may be!

The Top 11 Best AV Receiver Brands Are:

1. Denon
2. Onkyo
3. Sony
4. Marantz
5. Anthem
6. Yamaha
7. Integra
8. AudioControl
9. Pioneer
10. Arcam
11. Outlaw Audio

Let's go through each of these brands in greater detail and explain why they belong in the top 11 best AV receiver brands. For each brand, I'll share the country of origin, a bit of history, an example of a best-selling or flagship model, and a link to the official website.

Related My New Microphone article: Receiver Or Amplifier: Which One Should I Buy?

Click here to return to My New Microphone's articles on musical equipment brands/manufacturers.

Denon

Denon is completely committed to enhancing the entertainment experience. The creation of products that deliver total quality enjoyment to others is a fundamental driving passion for Denon. It should come as no surprise, then, that this company is a big name when it comes to AV receivers.

Denon's impressive line of AV receivers includes units for small entertainment rooms to full-size home theatres and everything in between.

Their attention to detail is impressive, and the feature-rich designs ensure that at least one of their receivers will be the perfect fit for you and your setup.

Noteworthy receiver: Denon AVR-X7200W

Onkyo

Onkyo is a big-name brand when it comes to home audio entertainment systems. Onkyo has top-of-the-line products for your audio system needs, from speakers to playback devices to amplifiers and receivers.

Onkyo's AV receiver range is very impressive, complete with amazing functionality and product for nearly every home listening environment imaginable.

Checking out their product line, it should be relatively easy to see why Onkyo is a part of this list of the best AV receiver brands.

Onkyo has teamed up with the smart speaker company Sonos to bring the best whole-home audio experience to your very own space.

Sonos is featured in My New Microphone's Top 11 Best Home Speaker Brands You Should Know And Use

Noteworthy receiver: Onkyo TX-RZ1100

Sony

The Japanese-based Sony Corporation is a global conglomerate involved in sectors such as gaming, entertainment, financial services, and, of course, AV receivers.

Sony is a giant company and is part of the Fortune Global 500 (top 500 companies in the world based on revenue).

In the audio industry, Sony is likely best known for its revolutionary 1979 device: the Sony Walkman.

As for receivers, Sony produces a variety of receivers from low-end to high-end models. Their AV receivers are among the most popular in the world. Whatever you're looking for in an AV receiver, Sony is likely to have for you.

Noteworthy receiver: Sony STRZA5000ES

Marantz

Since the 1950s, Marantz has been making a name for itself as a reputable and acclaimed Hi-Fi brand.

Marantz receivers are designed and manufactured to bring out the most excitement and emotion in music or screened media by keeping the audio as the musicians and mixing engineers intended. Their AV receivers are an excellent choice for any home entertainment system.

Marantz receivers reproduce the magic and realism of recorded audio are some of the best in the world.

Noteworthy receiver: Marantz SR7011

Anthem

Anthem has a very impressive line of affordable Hi-Fi power amplifiers and AV receivers.

Anthem designs its receivers to give users the most advanced tools available to easily connect, control, optimize and power all of their entertainment systems. This dedication is apparent in the company's receivers, which are most likely to be at the center of any home entertainment system.

The expertise acquired by Anthem allows the company to continually push boundaries and produce better receivers for their customers. When it comes to performance, reliability and pricing, Anthem is a leader.

All Anthem receivers are engineered and built in-house with hand-selected components and incredible attention to detail.

Noteworthy receiver: Anthem MRX 1120

Yamaha

Yamaha is yet another Japanese-based Corporation that has become a global conglomerate. The company has expanded to many sectors, including motorcycles, electronics, musical instruments and, of course, AV receivers.

Yamaha has been in the game of home entertainment and AV receivers for a very long time and has amassed an impressive line of receivers that work perfectly well in home audio-visual systems.

The company's size affords Yamaha a large budget for research and development for their receivers and keeps their price points competitive.

Of course, the ultimate quality of the AV receiver comes down to superb design and excellent manufacturing. Yamaha, of course, has these factors as well.

Noteworthy receiver: Yamaha Aventage RX-A3080

Integra

Integra is the home theatre brand of the aforementioned Onkyo.

By taking the best experience of Onkyo and mixing it with new ideas, the Integra home theatre brand has produced an impressive range of products, including their DRX, DSX and DTM receivers.

The brand's obsession with delivering flawless audio experiences is built into the design, construction, and performance of every Integra component. This is clearly shown in Integra's receivers which have become the top choice of many AV experts and home theatre owners worldwide.

Noteworthy receiver: Integra DRX-R1.1

AudioControl

AudioControl has been around for quite some time as a manufacturer of car, home and pro audio equipment. The company was founded by none other than Greg Mackie before he began his wildly successful company, appropriately named Mackie.

AudioControl prides itself on a long history of designing and building top-level audio equipment from scratch.

The mid-sized company may not be as popular as the other brands on this list but rest assured that the receivers of AudioControl are in the same echelon.

The experts at AudioControl have designed and built incredible-sound receivers with a common goal of producing audio tools for people who love amazing sound, no matter if that love is new or longstanding.

Noteworthy receiver: AudioControl Concert XR-8

Pioneer

Pioneer is yet another giant Japanese company. This brand focuses on audio products, including subwoofers, car and marine audio, and home audio systems.

Pioneer receivers are popular, and for good reasons. The functionality and design quality of Pioneer receivers is top-notch, and the prices are affordable to both casual users and dedicated audiophiles.

Noteworthy receiver: Pioneer Elite SC-LX904

Arcam

Arcam (short for A&R Cambridge) has been around for a very long time though it was only as far back as 1995 that the company expanded into home cinema electronics.

Since then, Arcam has cultivated a world-class reputation for making some of the best-sounding AV electronics, including, of course, AV receivers.

Their receivers are built with the industry's best design and production techniques to pick up all subtleties, nuances and excitement during the reproduction of the source audio signal.

Arcam aims to deliver maximum enjoyment to the listener, which is certainly made possible by their superb AV receivers.

Noteworthy receiver: Arcam AVR850

Outlaw Audio

Outlaw Audio is a high-end manufacturer of audio equipment with a customer-direct approach. The company focuses on customer relationships and building the best products (AV receivers included) without spending on marketing, sales or distribution agents.

This intense focus allows the team of experts at Outlaw audio to design and build some of the best AV receivers on the market and sell those receivers at a very reasonable cost.

If you're looking for great performance and great value, look no further than Outlaw Audio.

Noteworthy receiver: Outlaw Audio RR 2160

The post Top 11 Best AV Receiver Brands In The World first appeared on My New Microphone and is written by Arthur Fox.