When a WAV is converted into a FLAC file, besides the usual lossless compression, if the WAV file has lots of silence, does the FLAC compress that way down?
In other words, normally a WAV file seems to me to convert to a FLAC 1/2 the size of the WAV. So a 500MB WAV becomes a 250MB FLAC.
But if much of the WAV file is silence, should that mean that the losslessly compressed FLAC will be much smaller than 250MB?
504 MB WAV or about 50 minutes of silence (44,100 Hz, 16-bit, Stereo) can be compressed down to 571.93 KB.
Yes, this makes sense.
It also means that WAV's with lots of dead space don't need to have silent sections trimmed if they will be converted to FLAC (and i assume any compressed format, such as AAC 32.
In case of lossy compression it's true only for non-CBR encodes.