On 2017-10-15 19:52, Måns Rullgård wrote:
Dennis Muratshin <frankinshtein85@xxxxxxxxx> writes:
for example run these commands:
sox.exe src.wav dest1.ogg -G rate 44100
sox.exe src.wav dest2.ogg -G rate 44100
It will produce two files with small difference between them:
http://prntscr.com/gxdifd
Is there any way to avoid it?
It could be due to dither. Try the -R option to use a fixed seed for
the random number generator.
It's hard to tell from the screenshot how big the files are... but they
look as if they might be tiny. The line 1 difference might I guess be
a date/time stamp, if the file format allows that.
Then ... do we have just one or two 'frames' (if that's an appropriate
term) of audio? Might they also have a date/time stamp in them?
I'd have thought a dither difference would affect many bytes in the
audio
stream, but then again maybe that depends on what the audio in the file
actually is - silence, test tones, real music?
--
Jeremy Nicoll - my opinions are my own
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