[PD] firewire is dead?
abonnements at revolwear.com
Tue Nov 20 19:18:29 CET 2012
Am 19.11.2012 um 09:45 schrieb Peter P. <p8rpp at aol.com>:
> * Max <abonnements at revolwear.com> [2012-11-19 09:05]:
>> I just got a RME Fireface UCX and will test it on linux soon. it has a USB class compliant mode, so it should run. The documentation says that the latency in the class compliant mode is not as good as with the proprietary driver. It would be interesting to have numbers here how much better exactly the rme driver is over the class compliant.
>> I guess i'd simply connect output to input and measure the delay? Someone must have done this before, Is there a standard method? A patch?
> Use jdelay by Fons Adriaensen.
> There is also a patch:
Had no chance to test the Fireface UCX on linux yet, but here the results for OS X 10.8.2:
Tested with Pure Data 0.43.4-extended-20121101
Sampling rate 44100 Hz, delay 20 ms Blocksize 64, No callbacks
latency via USB, RME Driver
latency via USB, Class Compliant Mode
In the USB Class Compliant mode, when I change the delay in the Pd Audio properties to 40, the patch will output around 44.3. When set to 80 it will be 84.3 and so forth. Using the RME driver the latency shown in the patch always stays in the number range as seen above, no matter what delay is set in the Pd's Audio Properties. What's the explanation for this?
I have to send the Fireface back because the Firewire port is not working for me.
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