michael123;508931 Wrote: 
> 
> 2) If I read the source code of sox correctly, 'polyphase' is just
> being emulated as 'rate -vb 95'..
I compared both rate -v and polyphase upsampling and the polyphase
method sounded significantly better.

Also there is a bug in sox 14.3 that thinks flac is capable of 16 bits
only, therefore it wrongfully uses dithering, thus effectively reducing
word lenght to 16 bits again. This can be avoided by adding the -D (no
dithering) parameter: rate -v -D

Regards,

Ronald


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