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How to Avoid the Noise Caused by Clipping?

Lola J. Strain avatar
Written by Lola J. Strain
Updated over 2 weeks ago

Reproducing your voice truly will make you feel like fighting shoulder to shoulder with your teammates when communicating in games, or will grab the attention of the audience when podcasting. But sound is not visualized. So a waveform diagram is used to represent an audio signal and to tell whether the reproduction is nicely done. When the waveform contains all the information of the audio, you will obtain a smooth and continuous curve.

How to observe the curve waveforms?

If the audio is too quiet, there is a lower amplitude in which the waveform will rise and fall less drastically. But if it’s too loud, the top and the bottom of the waveform will get chopped off. And the impact of distortion caused by clipping on the audio quality may be more uncontrollable.

What is clipping?

Each piece of equipment you use has its limitations. When the level or volume reaches a certain threshold, the extra audio not be captured. The peaks and troughs of the sound wave beyond the limitation become "lost signal" and are clipped into sharp squares, which will eventually cause "clipping".

Your equipment weakens and converts these sound signals into a humming noise, resulting in a harsh, unnatural sound that not only sounds unpleasant but can also damage your device.

How to measure the intensity of an audio signal?

The intensity of different audio signals is measured by different meters.

  • Analog signals are monitored by a VU Meter, which is usually displayed via front-end devices such as amplifiers or interfaces.

  • Digital signal is measured by the Full Scale Meter, which is available in most audio-related software, such as Audacity for recording or OBS for live broadcasting. You will see the Full Scale Meter in green, yellow, and red to indicate the decibel range.

How to identify clipping?

For most people who do not dig their feet deep into the audio field, the easiest way to tell whether clipping is happening is whether the digital audio reaches the limit or not.

When the meter gets to the red area, it means that your audio is facing clipping. Sometimes a small amount of distortion may be difficult to detect by the ear, and when you start noticing a loss of audio clarity and detail, the distortion is beyond repair. But the meter shows it intuitively, and you just can not neglect it.

How to Avoid Clipping

To avoid clipping, users who use analog microphones have to adjust the signal strength of both the front-end and back-end equipment to a proper level, which is essential for ensuring the quality of the reproduced audio.

But for USB microphone users, the analog part has been fiddled with before they leave the factory. Manufacturers may have different calibrations, but will make sure that the analog signal has enough headroom before clipping at the front-end.

You only need to set the gain or the volume of the microphone and computer correctly and keep a good talking distance. As a rule of thumb, when the digital signal bounces around 16dB and peaks at 12dB on a full-scale meter of OSB or recording DAW, you are getting pretty decent loudness of sound.

The proper strength of the audio means that when you suddenly get excited and speak loudly during the game, teammates can still hear your voice clearly without any harshness or distortion. For podcasters, you can have headroom for audio post-editing.

All in all, if you are using a USB microphone and trying to get the best out of it, try speaking to the microphone within 5 inches and adjust the volume to keep the meter between green and yellow. The sweet spot is approximately -16dB to -12dB.

Use the USB Microphone Directly

If you do not want to bother much with all sorts of settings, the Ampligame A8 USB microphone with a nicely-tuned analog signal processor and converter is the choice for you. And the mids are quite neutral, and the treble and bass are handled without excessive sharpness or boominess, so the AmpliGame A8 will not easily get clipping as long as the volume settings are not put to the most extreme level.

Either way, it will take several sound checks to find the settings that work best for your voice and usage. This way, you have to prepare yourself with some time to find the sweet spot that suits the condition of your voice today, before the game starts or when it is about to go live. Or better yet, have the AmpliGame A8 now and say goodbye to the distortion caused by clipping.

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