AudioBanter.com - View Single Post - Help wanted: 2 channel 24bit AES/EBU sample rate conversion 96khz to 48khz

(Scott Dorsey) wrote in message ...
Marcel de Velde wrote:
(Scott Dorsey) wrote in message ...
Marcel de Velde wrote:
I need a 2 channel 24bit sample rate converter from 96khz to 48khz.
Have to do it with hardware to hook up a Quantec Yardtick reverb
running at 48khz with a Lynx AES16-SRC audio card running at 96khz.
I've looked all over but simply can't find a box that isn't too
expensive and just does this and not a million other things +
channels.

Why? Why do you have to run the card at 96 ksamp/sec anyway?

Because I want to run my Mytek converters at 96khz because of better
audio quality, because of improved audio quality in plugins when using
96khz audio and improved audio quality when converting back to 44.1khz
in samplitude in the end.

If you're going to be running everything down to 48 ksamp/sec and lowpassing
it anyway, all of the ultrasonic information you gain at 96 ksamp/sec is
totally lost. Whatever you gain is going to be more swamped by what you
are losing in the SRC process.

But, why can't you just run the Lynx at one rate when it's plugged into
the Mytek, then running it at a different rate going into the Quantec?
There's no reason not to do the SRC in software if you're going to be
stuck doing it anyway.

The Lynx card provides very good sample rate conversion on it's inputs
but none on the outputs.

So, do it in software. I still don't understand where your problem is.
--scott

Hi Scott,
Thanks for your help, but I want to use the Quantec in realtime with
both the Mytek inputs and 96k audio when mixing.
I have finally found a good solution though.
Z-systems make a dedicated sample rate converter Z-link96 which can be
modified for AES/EBU, so my problem is solved

btw I beleive there's more to 96k vs 48k than just ultrasonic
information.
At 48k A/D converters and many plugins produce errors or artifact in
the audible frequency range and working in 96k reduces this. I really
hate digital artifacts but love the possibilities and convienience of
computers. I'm just hoping that by using high sample rates, high
quality digital equipment and carefull use of all of this I can keep
the computer part as transparent as possible.