Sound Problem while Recording / Crackling

[dtroshkov]

Hello everyone. Please help me. I have a problem with sound falling apart when recording ~10-20 seconds - then the sound returns to normal. I have attached example on YouTube link: https://youtu.be/c4BFiIgNevE

Input data:
1. Use audient mk2 audio interface. Buffer size set to 2048 samples, frequency 48kHz
2. Don't hear any sound falling apart in headphones during recording, I only hear it when viewing the material.
3. Recording sound in two channels (microphone in a separate one) there is no sound falling apart in the channel with the microphone.
4. The load on the processor and video card at the time of sound falling apart is within normal limits and doesn't change much.


What was tried:
1. Updated video card drivers
2. Different audio bitrate values (128-320)
3. Different descrptions frequency 44.1-48kHz
4. Different video encoder bitrate values (12.000-40.000-70.000)
5. Try using MKV format instead of mp4.

 

[Suslik V]

15:38:30.913: Windows Version: 10.0 Build 22631 (release: 23H2; revision: 3737; 64-bit)
...
15:40:03.541: WASAPI: Device '[VIRTUAL_AUDIO_DEVICE_PROCESS_LOOPBACK]' [44100 Hz] initialized (source: CS2 (Звук))

2. Don't hear any sound falling apart in headphones during recording, I only hear it when viewing the material.

You run into issue known as:

[Application Audio Capture (beta)] Sound becomes noisy after a long time · Issue #8064 · obsproject/obs-studio

Operating System Info Windows 10 Other OS No response OBS Studio Version 29.0.0 OBS Studio Version (Other) No response OBS Studio Log URL https://obsproject.com/logs/oF4ofzG6VIEKsq24 and https://ob...

github.com

Don't use sound separation based on process capture technology by Microsoft (in OBS, the "Game Capture" audio is similar to "Application Audio Capture") or use newer OS (at least, Win11 24H2).