[EMAIL PROTECTED] wrote:
On 20 Sep 2004 at 12:38, Andreas Sikkema wrote:
[EMAIL PROTECTED] wrote:
Initially we recorded using 16 bit/8K sampling on the basis
that this is what is required by Asterisk but that was
really terrible. So we're sampling at higher rates on
the basis that we can use sox to change it as necessary. Any
thoughts on what we can do to make the recordings sound "sharper"?
We've found that downbsampling with sox resulted in
significantly lower quality files as those downsampled
with Cool Edit.
Dithering in Cool Edit maybe?
Matt Riddell
sox offers several ways to change sampling rates. The poorest one is
really quite poor. The best should not be distinguishable from any other
good converter over a telecphone line. Dithering is completely
irrelevant for telephony. It too LoFi to notice. :-)
Regards,
Steve
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