Re[4]: LF: Is this frequency locking enough for EbNaut?

[Chris Wilson <chris@chriswilson.tv>]

Hello Andy,

Sunday, December 6, 2015


So  how  would  I test for these "slippages" or even recognize if they
were occurring  Andy?


What  sound cards are you EbNauters using that might have good Win7 64
bit drivers??

Thanks.


> Be careful, it 'may' be OK, but I have heard that slippages can occurt.
> Due to difference in sample rates between the USB itself and 12MHz
> clock of the chip,  when using USB isochronos mode (used for time
> dependent data like audio), it can slip occasional samples as the
> clocks slide past each other.

> I have used that chip, or at least a close relation,  but never in a
> synchronous manner - so it may be worth testing see if slippages do
> occur.

> Andy  G4JNT









-- 
Best regards,
 Chris  2E0ILY                          mailto:chris@chriswilson.tv