[PD] Playing and recording simultaneously

[Martin Peach]

Henrique wrote:

> But, in order to the IR estimation be correct, there must be a 
> synchronization between the clock frequencies of the: (1) D/A converter 
> at the output generator and the (2) A/D converter on the input recorder. 
> If the "sampling ticks" of these clocks are not (at least approximately) 
> synchronized, then a significant error is expected on the estimate.

As long as they are on the same card, they will be in perfect sync at 
the clock level unless you have some really unusual hardware. This is 
because the same clock is used for A/D and D/A. Usually they are on the 
same chip and the data from the ADC is clocked out using the same clock 
that loads the DAC.

Martin