Huge audio distortion when using multiple audio spectrum visualisations

Bug
1

When I use multiple Audio Spectrum Visualisation filters on the same WAV file, I get huge audio distortion on loud sections.
https://youtu.be/zuV0Xtxeiz4
The original WAV file does not have this distortion.

2

The Audio Spectrum Visualization filter should not modify the audio in any way.

I just did a test:

  1. Open a tone clip with a 1kHz tone at 0dB
  2. Open the Audio Waveform scope and see that the audio is at maximum level
  3. Apply 4 audio waveform filters to the clip
  4. Observe that the audio level has not changed and it not clipping

There must be something else going on causing your distortion.

Questions:

  1. What version of Shotcut are you using?
  2. Have you tried applying a gain filter and reducing the gain of the audio by a few db?
3

I found that the wav file I was using peaked at a hugely high volume, and although it didn’t distort when I played it back in VLC media player, as soon as it was used in any video it would distort. By reducing the gain by a lot I was able to fix this.

Sorry for the late reply.
I forgot to check for responses on the thread.

4

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.