What Is An Audio Interface? Top Full Guide 2022

What Is An Audio Interface Top Full Guide 2022
  • Anthony

If you’re looking for a way to produce clear-sounding audio, you may want to invest in an audio interface. This device allows the user to connect the computer and turn its digital signals into something audible.

What is an Audio Interface? Audio Interfaces will enable the user to connect the computer and turn its digital signals into something loud. Keep reading the article; Hooke Audio will show you more information about this device.

What Is An Audio Interface?

In its simplest form, an audio interface is a device that connects with your computer and allows you to hear audio from it. An audio interface is a device that connects to a computer.

This is how you hear the sound of a dog’s voice when a video of a cute dog is posted on YouTube. This interface is also used to record the sound of your voice when you speak on Zoom calls. The sound card in your computer was not intended for professional use. Thus, the rise of the external audio interface.

These little boxes convert analog signals into digital audio, which your DAW software can recognize. You can also play your recording back on external speakers by using the reverse process.

Many audio interfaces have line-level inputs and outs. Other features include digital outputs and ins/outs and midi inputs/outs and combo connectors that allow for either XLR and 1/4″ connections.

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Types of Audio Interfaces

Audio interfaces can be connected to your computer similarly to other peripherals: via ports on your computer.

Types of Audio Interfaces


Podcasters and solo artists/composers can use USB audio interfaces. They allow them to record only one source and listen to what comes out of their DAW.


These interfaces, which are more robust than usb, thunderbolt, or firewire, will have more input and output options. They can also handle latency better due to greater signal bandwidth.

What is the Right Audio Interface?

The port options available on your computer and how you intend to use them will determine which audio interface you choose. You’ll need a connector with a higher bandwidth if you plan to record multiple channels simultaneously (e.g., a complete drum set). You can also use a USB if you are singing along to your favorite tunes.

What’s in an Audio Interface?

You can quickly search the internet for audio interfaces to see all the available options, each with its specifications and configurations. It’s confusing, right? They are all the same thing.

How Does An Audio Interface Work?

Inputs and Outputs

You can record with 1/4-inch instrument cables (for instruments) and XLR cables for microphones. The number of inputs on your audio interface will determine how many tracks you can record simultaneously.

A singer-songwriter might want to record both vocal and acoustic tracks simultaneously. A simple two-in/two-out audio interface is sufficient for this project. For remote sessions, someone who needs to register a complete mic-equipped drum set-up will require more inputs.

You can connect external speakers to your interface, such as studio monitors. The outputs have a flat response, which will give you a clear picture of the sound quality of your music.

You may have multiple output options for some interfaces, such as sending audio to different places simultaneously or mixing in surround sound. When choosing an audio interface, think about how many outputs are necessary.

Many manufacturers offer different types of audio interfaces. The differences in audio interfaces provided by other manufacturers are usually based on their number of inputs or outputs.

You will find separate controls for the outputs and inputs so that you can easily adjust the volume of your loud (read: overzealous) guitarist.


Many audio interfaces have MIDI (Musical Instrument Digital Interface) inputs and outs. This allows you to connect a MIDI keyboard to your computer. You can use the information to play “virtual instruments” that are software-based.

These plug-ins or standalone applications can be used as extensions within your DAW. The interface’s MIDI output(s) allows you to connect an external MIDI sound source such as a synthesizer, drum machine and have it played by the MIDI data you have recorded in your DAW.


Latency is a delay in audio transmission. It takes audio approximately a few milliseconds to travel from the input of the interface into the computer and back out again.

Finally, the output of the interface will appear. This can cause distractions during recording as you may hear your voice and instrument returning a little later, which can throw off your timing.

You can reduce latency by setting the audio buffer in your DAW at its lowest value. The pad controls the computer’s processing time and can be measured in samples (64 to 128, 256 to 255, etc.).

The lower buffer setting will result in less latency. Lower buffer settings can cause more stress on your computer and result in clicks and pops and diminished audio quality.

Direct monitoring (also known as zero-latency monitor) is better to avoid latency and not impact computer performance. It is available on all audio interfaces, even Steinberg models.

It works as follows: Your interface sends a copy (pre-computer) of your input signal directly to the headphone output, so you can hear it in real-time (with zero latency) and mixed with tracks coming back from the computer.

This feature is available on some interfaces via a switch that allows you to select between the output of your host program and the direct signal. However, in more advanced interfaces such as the Steinberg UR22C, direct monitoring can be implemented using a mixed control knob.

This lets you adjust the ratio between the sound coming from the computer and the natural sound. Advanced models, such as the Steinberg URRT series, have digital processing (DSP). All Steinberg interfaces that offer this feature include an app called DSPMixFx to control monitoring and add effects from your iPhone(r), iPad(r), or iPad(r).

Sound Quality

It’s an audio interface, so sound quality is essential. Therefore, the most critical components of any interface’s converters and mic preamps are its mic preamps. Steinberg interfaces come with high-quality converters and Yamaha DPR mic preamps to ensure excellent sound quality.

An older gentleman stands behind and leans on a soundboard.

Rupert Neve

The Steinberg URRT2 and URRT4 interfaces can be switched into every channel’s signal path thanks to Rupert Neve Designs transformers.

Rupert Neve Products are well-known in the recording industry as a significant designer of mixing consoles over more than 50 years. These interfaces allow you to add the Neve sound to your home recordings.

An audio interface is much more than a peripheral device. Your studio’s heart is an audio interface. It doesn’t matter if you’re replacing an existing interface or buying your first; make sure to research everything.

Mic Preamps

Welcome to the part of the audio science laboratory. This is not the place for you to get into too much detail. A mic preamp is a circuit that increases a low-level instrument or mic to make it more line-level.

Preamp quality can affect the quality of your audio recordings. You know the old saying, garbage in and garbage out? Some audio interfaces have high-quality mic preamps but come at a steep price. There are many affordable options available with excellent preamps one point for team technology.

Phantom power is something you should consider when selecting an audio interface. This isn’t a Star Wars prequel. It’s 48-volt power that condenser mics must work.

This is not necessary if you are only using a dynamic microphone. However, if you plan to use or record condenser mics, you will need a 48v Phantom Power switch.

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Audio Converters

Continue our journey into the audio science laboratory. You will need to convert your analog audio into digital. The audio interface converts the signal to something that your computer can understand by turning it into thousands upon thousands of small samples. Digital audio is also converted to analog and piped to your speakers.

Sample rates and bit depth are essential here. The higher the sample rate, the better the audio quality (the resulting files will also be more significant). The higher quality converters you use, the better your audio recordings.

Technology is constantly improving, and audio interfaces can handle higher bit depths and sample rates. You can get up to 24bit/192kHz.

This might seem excessive when you consider that streaming services such as Spotify and CDs use 16bit/44kHz. An audio interface that can handle 48kHz is sufficient for small projects.


You will need to be able to see what is happening while you record. Every audio interface will have a section specifically for this purpose. Basic interfaces will have a volume knob for the output cue (mostly, you’ll use headphones) and a mix control knob.

Imagine that you are recording the topline of a vocalist to a track that you have created. The vocalist will need the mix the music and their voice. This is what the mix knob does.


Insert effects can enhance audio signals, such as adding light compression while recording a voice. This option is available on some audio interfaces.


Drivers are tiny bits of software that allow your audio interface to run on your system. They also reduce latency, so you don’t even notice it. Latency refers to the delay in the audio being sent from your computer.

How To Connect An Audio Interface To Your Computer

Although this is a relatively straightforward task, computers can sometimes go wrong if the steps are not in the correct order. This step-by-step guide will save you grief and unnecessary gnashing of your teeth.

  • Reboot your system. Although it is not necessary, it will give your ‘pooter a new start.
  • Use the appropriate connection to connect your interface to your Mac/PC. If you have multiple options, choose the one that offers the most bandwidth.
  • All drivers are to be installed. This is usually done automatically, but it’s possible to download the most recent driver from the manufacturer’s website.
  • Turn off your speakers and monitors. These devices should be connected to the stereo output of your interface.
  • Start your DAW/recording software. To route your shiny new piece of audio gear, specify the input and output settings of the software.
  • It might work! Then, playback to the last masterpiece that you have created.
  • Connect your instruments and mics to the inputs of the interface
  • Record something on each channel to test the input signal.
  • Have fun with it! Dabbing is a good idea, but avoid proximity to microphone stands and instruments.

Related article: 

How To Connect Microphone To Computer?

Is an Audio Interface the Same as a Sound Card?

A sound card and an interface can do the same thing. It would help if you had something to convert sound from analog to digital to process it and then edit it. This is what the interface or soundcard does.

Is an Audio Interface the Same as a Sound Card

An audio interface can be described as an external sound card that is compatible with laptops or tablets. It is also widely used by desktop users. No longer are you restricted to using a sound card in your computer to enhance your recordings?

Although you can probably record and playback audio with your tablet, pc or mac, an audio interface will help you sound more professional. An audio interface is what sits at the heart of any home recording studio.

Which Are The Most Popular Audio Interfaces?

There are so many options, so how can you choose the right one? These are the top 5 audio interfaces currently on sale. These are proven and trusted home recording studio solutions.

  • Focusrite Scarlett solo (3rd Generation) USB Audio Interface with PRO Tools
  • M-Audio M-Track Duo – USB Audio Interface for Recording
  • Focusrite Scarlett 18i20 (3rd Generation) USB Audio Interface with Professional Tools
  • Antelope Audio Zen Go synergy Core 4×8 bus-powered USB-C audio interface


Is a mixer an audio interface?

Mixers are not an audio interface. Audio interfaces, commonly referred to as mixers, are usually computer software programs that combine the incoming signals from the microphone and the outgoing sounds from the speakers.

But, most music software can do this as well. A mixer combines the incoming calls from the mic and the speakers. This is what an audio interface does not do.

Do I need an audio interface if I’m not recording?

Suppose you want to use audio-playing applications like iTunes, Spotify, and Pandora and audio recording and editing apps like Garageband and Logic Pro X, then yes. In that case, you’ll need an audio interface. Do I need an audio interface if I’m not recording?

If you’re playing back music from a USB drive or hard drive or streaming music from Spotify or Pandora, then you don’t need an audio interface.

But, if you are recording music, you will need an audio interface. The reason is that many music recording and editing applications record the sound from your computer’s mic and the sound from your speakers simultaneously.

What are the outputs on an audio interface for?

Audio interfaces are the backbone of any musician’s setup; it is an essential piece of gear that is often taken for granted. Audio interfaces help process the signal from an input (such as a microphone) and convert it to an output (which will go to speakers). It also takes the call from the computer and converts it to an analog signal.

Most audio interfaces today can process both input and output signals. This means that the same audio interface can be used to plug your soundcard into your computer’s sound card and take the output from the computer’s sound card, and put it back in the computer for processing.

Can you connect an audio interface to a TV?

When looking for a quick and easy way to hook up an audio interface to a TV, the HDMI cable is a great option. The HDMI in the cable’s name stands for High-Definition Multimedia Interface, It can provide high-quality audio and video with a single line that can connect to both the TV and the interface. Can you connect an audio interface to a TV?

Yes, and many of the soundcards and interfaces on the market today include HDMI outputs to accomplish this task. Another option is to connect your interface directly to the TV using an optical cable (sold separately).

Can an audio interface be connected to the phone?

Mobile phone users looking for a hands-free listening device may be interested in having an audio interface connected to their mobile phones.

Audio interfaces can plug into smartphone devices for greater listening clarity and control the volume with precision. Audio interfaces with built-in speakers make listening to podcasts, music, audiobooks, and more without needing external speakers.

Can you use a DAW without an audio interface?

That’s the question every musician, producer, or engineer needs to ask before committing to any more purchases. Can you use a DAW without an audio interface? It’s possible, but there are some caveats worth looking into.

Usually, you would have to use an audio interface with your DAW to record audio tracks for producing music. However, some DAWs have their built-in preamps, signal processing hardware, or effects capabilities, which may be capable of being used without an external audio interface.


Audio interfaces connect a computer, mobile device, tablet, or another audio source with speakers or headphones. Most professional studios have two or more audio interfaces, depending on their setup.

With that said, I hope this article has given you some helpful information on what an audio interface is, how it works, and the best quality audio interfaces for recording music in different environments.


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