Re: [SoX-users] Poor sound quality converting WAV 48k to 8k

[Dat H. <dat...@gm...>]

On Jan 3, 2008 2:58 PM, Al Lougher <alo...@ya...> wrote:

> I'm using Sox 12.7.5 for Linux and conversion of a 48khz 16bit Stereo WAV to
> 8kb single channel doesn't sound that great, eperiencing lots of hiss and
> dialogue is very "lissspy". Just wondering if there are any tips to
> achieving better sound quality?
>
> Here's the command I'm using:
>
> sox -V ${file}.wav -r 8000 -c 1 ${file}_temp.wav resample -ql

I used to use "resample -ql" for 48k aiff to 44k wav and it seemed
ok to me (but my ears aren't the best) - could be the 8k that
is doing it - what happens if just for grins you go to 32k (or
even 44k)?

i was then told to use "polyphase" and have since
in 13.x someone said to use "rabbit" but i don't have 13.x yet

anybody know the quality of audacity's sample conversion routines? (or
for that matter nero's - nero's is on the fly so
can't imagine it is real good)