> > but in case of 8000=>44100 or 8000=>48000 it would sound terrible!!!!!
> > for example 1000Hhz sound with produce mix of 1000,5000,9000,13000,17000
> > and 21000 Hz sound. and you WILL hear it.
>
> This is 1000, 7000, 9000, 15000, ..., if my memory is correct.

possibly - i'm not sure now.

> Implementing a good rate converter would be an exercise of digital
> filter design, but I don't think this needs to be done now.
>
> Personally, I would care about high quality 44.1k <-> 48k conversion,

IMHO this is not important as it make problem only in >20kHz range which
almost noone hear

> but I don't want to read a book of digital filter right now.
>
> --
> IWAMOTO Toshihiro
>

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Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.