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Author Topic:   A question about the Capybara's converters
tuscland
Member
posted 08 July 2005 17:59         Edit/Delete Message   Reply w/Quote
On the page http://www.symbolicsound.com/cgi-bin/bin/view/Kyma/CapybaraSpecifications, you can read :

quote:
Can you use the Capybara•320's 24-bit 100 kHz converters as a standalone converter?

If Kyma is running, you can route digital audio signals into digital inputs on the back of the Capybara, (optionally process them through Kyma modules), and then output the signals through the Capybara's D/A converters. Or you can skip the processing step and just use the Capybara as a 4-8 channel 24/96 D/A converter


Is it possible to get rid of the 3 ms latency and have some kind of "low latency" mode in order to use the Capybara as a standalone A/D D/A converter?

If no, it would be great to have a Tool that would do just that : put the Capybara in standalone converter mode (no latency) with the ability to route the analog inputs to the digital outputs and vice versa.

Is it possible to program by myself such a Tool, or does it require some specific internal knowledge (well, I guess yes!!!!)?


Camille

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mathis
Member
posted 14 July 2005 14:42         Edit/Delete Message   Reply w/Quote
In analog/digital sound conversion there is *always* latency involved. I´m not sure though if that´s the whole 3ms in this case.

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tuscland
Member
posted 14 July 2005 17:01         Edit/Delete Message   Reply w/Quote
I understand a small latency can be induced as a consequence of the A/D or D/A conversion, but it's got to be much smaller than 3 ms for specialized A/D devices.

In our case, the latency is (I believe) caused by stream buffering or something, in order to feed the DSP's.

On some audio cards, you can switch to low latency mode, in which you have virtually no latency (by a magnitude of a couple of samples).

I actually tested the Capy's A/D + D/A conversion when set to 3 ms, and found it was fine for recording. Hence, the Capybara and the Alesis AI-4 are two of a perfect pair, and I can use them so that I can use the ADAT input and replace the DIGI-001's poor converters (or broken, the interface is old now).

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