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I am currently conducting a test on how different the audio quality losses of different formats sound like.

Several YouTube video makers have done it with YouTube's audio+video compression, but my aim is to find out how different the compression losses after e.g. 20 passes sound like.

Example command: 

format=wma  
while [ $pass -lt 20 ]
  do ffmpeg -i music.pass$pass.$format music.pass$(( pass + 1 )).$format
  pass=$((pass+1))
done
I am currently conducting a test on how different the audio quality losses of different formats sound like. Several YouTube video makers have done it with YouTube's audio+video compression, but my aim is to find out **how different** the compression losses after e.g. 20 passes sound like. Example command: ``` format=wma while [ $pass -lt 20 ] do ffmpeg -i music.pass$pass.$format music.pass$(( pass + 1 )).$format pass=$((pass+1)) done ```

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[–] • 1 pt

Sounds better than the ogg if you increase the volume.

[–] • 1 pt

But OPUS sounds best after 100 passes. (vid8)

OPUS was made by XIPH, the same organisation that made OGG and FLAC.