Don't store silent audio files

Hi all,

My suggestion is to not write silent audio to disk. I currently have >2 GB of identical completely silent .au files on my disk, which serve no purpose but to keep my audacity project files from complaining about being corrupt. Not a big problem by any means, but maybe someone will find it worth looking into.

I don’t know how complex it would be to filter the silence out though. Maybe it would cause a performance hit? Anyways, that is my suggestion.

All the best to all you brilliant devs (​:

Why are you recording silence?