michael123;574653 Wrote:
> How do you find the listening result with dithering? btw, why 90.7
> bandwidth (e.g. from 20Khz)? Hi Michael, the options I posted are my starting
> point - I like to
figure out what I want to achieve technically before I start
listening.
Steep filters produce more ringing. The more you "relax" the filter,
the more you can reduce ringing. 90.7% bandwidth is a starting point.
As a starting point, I want to listen to the following options. I also
want to take a look at the relative impulse responses.
rate -v -M -a -b 90.7 88200 dither -S ("relaxed" filter with
aliasing)
rate -v -M -b 90.7 88200 dither -S ("relaxed" filter without
aliasing)
rate -v -M -a 88200 dither -S (95% bandwidth filter with
aliasing)
Unfortunately, I've got a heavy cold at the moment which isn't great
for listening tests!
michael123;574665 Wrote:
> again, we're talking about dithering of 32-bit signal into 24.. are you
> sure you need that? No, I think I've changed my mind on this. I believe that
> the dithering
is needed because the samples are modified in the upsampling procedure.
I also want to accomplish resolution enhancement at the same time (as
per the Wadia white paper).
--
VirusKiller
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