Does Audio Interface Improve Sound Quality?

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While an audio interface is a treasured piece of equipment for home recording on a PC, does it improve sound quality? An audio device will improve the sound quality of your PC but may only give you better feedback on occasion.

They are definitely more powerful than the sound card built-in to your computer’s motherboard or any other smart device you may use. We will look into this device to see whether the sound improvement is worth the money.

So, without further ado, let’s investigate how an audio interface will improve the overall sound quality of your PC.

What Is an Audio Interface?

In this modern digital world, you can use many new devices to improve sound quality input and output. An audio interface is an electronic or hardware device designed to improve the recording quality of your audio.

Many people confuse an audio interface with an external sound card because they look the same, but they have completely different functions. A sound card is designed to improve the output of your sound, while an audio interface enhances the input quality.

It may seem the same when you play the sound back, but the quality is improved because it was recorded in better quality. A note of interest: an audio interface can also be recording and audio editing software that helps tweak the sound.

In this article, we will only discuss the hardware you can add to your device with connections for speakers and microphones. It is also important to know that there are hybrid devices that function both as an audio interface and as a sound card.

Now that we have a clear understanding of what an audio interface is, let’s see whether this device really improves the sound quality.

How Does an Audio Interface Work?

With any digital device, like a computer, there is some delay when the sound is converted from digital to analog. The term used for this process is latency, so the next time you hear this, you know it has to do with time delay.

It doesn’t matter how fast your computer’s processor is; there is some delay present when it comes to this conversion process. An audio interface comes with an audio processor built into it, eliminating the need for your PC to process the audio or sound.

Thus, with an audio interface, the delay time is greatly reduced to produce the sound much quicker, hence better sound quality.

DJ adjusts music equipment before starting record

How Does an Audio Interface Improve Sound Quality?

We have already determined that the audio interface reduces the delay time for feedback in your audio, but how?

Reduced Latency

Because the audio interface is much more powerful than the built-in sound card of your PC or mobile device, it doesn’t produce detailed output. An audio interface, for starters, has very powerful software drivers that outperform any sound card built into the motherboard.

With the processor out of the way, everything is left to the dedicated circuitry of the audio interface to process. An audio interface also comes with a built-in preamplifier which will produce a much clearer sound signal for better clarity.

It also provides more gain to calibrate the sound to produce a much more defined sound quality.

Higher Sample Rates

This is basically the number of sound samples that are measured per second; the higher they are, the better the sound. Even the most basic audio interfaces found on the market have quite high sample rates of around 44 to 190 kHz.

This rate is much better than any sound card that is built into the circuitry of your laptop or smart device’s motherboard. Because an audio interface runs on a fixed number of samples instead of a fixed time, it decreases the time delay.

This translates to the samples taking about half the time to buffer, which is a huge leap in saving processing time.

System Noise Reduction

With an audio interface, you have much better filtering capability compared to the standard IC found on the PC. That is because the filtering circuit of an audio interface is better designed to filter out any noise from electric interferences.

It is also important to take note that not all audio interfaces come with the same quality filtering circuit. In essence, those with higher filtering capabilities are more expensive than the audio interface with lower filtering abilities to reduce noise.

What you do get from any audio interface is a clearer sound output for higher-quality audio feedback.

Improved Bit Depth

While the sample rate determines the number of pieces, the bit depth has to do with the number of bits per sample. This means that the bit depth of the sample determines the overall audio quality.

The lower the bit depth, the more quiet loss you have; the opposite is true with a higher bit depth. So, in essence, you have a much more accurate playback of the audio you record through the audio interface.

While not going into too much technical detail, we know that bit depth controls the dynamic range of your audio. A higher bit depth achieved by your audio interface also prevents any information loss and delivers better sound quality.

Much Better Sound Output

All the factors mentioned above come down to one thing: better sound output through an audio interface. What you also have, especially with high-quality headphones, like those with high impedance capability, is improved sound quality.

It is also important to mention that you can add a microphone and headphones to improve overall recording quality with an audio interface. This is especially helpful in producing high-quality audio for social media content creators and vloggers who need professional-grade audio.

Summing it Up

What we determined is that this dedicated audio interface is designed to reduce delay time and eliminate noise. It also helps to record much higher quality audio and produce clear sound for better feedback on all your recordings.

An audio interface is essential for better sound quality even if you have a high-end and very fast computer. That is because:

  • You don’t need to rely on the processor for conversion
  • Reduced time delays
  • Much clearer audio
  • No data loss in recordings
  • Professional quality feedback


An audio interface will make your audio recordings and feedback so much better and provide you with high-quality sound. This translates to professional recording sessions while you have more fun and better quality sound.

Hopefully, this will allow you to decide whether you need to add an audio interface to your home recording studio or not.

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