16 Mar
2008
16 Mar
'08
10:36 p.m.
On 16-03-08 11:05, van der Linden wrote:
I'm running arecord and aplay under uCLinux on a Blackfin DSP.
In this way I loopback my audio.
Does anyone know what delay I can expect between audio input and audio output?
Not me, but you just want to loop without doing anything to it? An analogue input? Every card I know can just loop it's own inputs out again. That is, In -> Out, while you have In -> ADC -> bus -> cpu/memory -> bus -> DAC -> Out.
I measure at my test board 50ms. I want to have about 1ms!
You'd need a pretty fast system I suppose. Why does your card not loop directly itself? You can still record it as well...
Rene