[linux-audio-user] Edirol UA-25: Any issues?

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Clemens Ladisch wrote:

>Cesare Marilungo wrote:
>  
>
>>I can run it at 11.6ms (5.8+5.8) full duplex without any xrun. Lower
>>latencies work but I get some xrun every now and then.
>>    
>>
>
>All USB audio devices move data in one-millisecond packets, so the achievable
>latency depends _only_ on the software, not on what device you use.
>
>  
>
Is it true? I didn't know.

>>Anyway I doubt you can get a greater bandwith with usb 1 at 24bit.
>>    
>>
>
>The theoretical limit of USB 1.x is 12 Mb/s (i.e., 1,500,000 bytes/s).
>The Audigy 2 NX can do eight channels with 16 bits at 48 kHz (750 KB/s),
>but full duplex stereo with 24 bits at 96 kHz would need 1125 KB/s which
>is too much considering the protocol overhead.
>
>  
>
>Regards,
>Clemens
>
>
>  
>


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