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

"Marcel de Velde" wrote in message
om
(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.

So what happens when you listen to these musical samples with the provided
free DBT testing software?

http://www.pcabs.com/technical/sample_rates/index.htm