Hi Max,
Is it possible for you to test this same card in linux?
J
On Nov 26, 2012, at 9:25 AM, Max wrote:
I got a new Fireface UCX, updated drivers and did a fresh test (replacement for the first one which didn't work). It has three modes: Firewire, USB and USB in Class Compliant (Plug and Play) mode. Interesting is, that Firewire is the worst when it comes to latency and Class Compliant is less than two milliseconds worse than the proprietary RME USB Driver. Bandwith might still be better in Firewire for multichannel setups, but I didn't test this. In my previous post on the topic the USB latency was wrong, it was a driver problem.
Tested with Pure Data 0.43.4-extended-20121101 /doc/7.stuff/tools/latency.pd Sampling rate 44100 Hz, delay 20 ms Blocksize 64, No callbacks
OS X 10.8.2 Mac Book Pro 2 Ghz i7
latency of internal laptop soundcard ("Intel High Definition Audio") for reference: print: 24.348 print: 24.3098 print: 24.3123 print: 24.3148 print: 24.3173 print: 24.3199 print: 24.3224 print: 24.3249 print: 24.3275 print: 24.33 print: 24.3326
latency Fireface UCX via Firewire, RME Driver print: 27.8751 print: 27.8777 print: 27.8803 print: 27.8829 print: 27.8854 print: 27.8472 print: 27.8497 print: 27.8522 print: 27.8548 print: 27.8573 print: 27.8598 print: 27.8624 print: 27.8649 print: 27.8675 print: 27.87 print: 27.8726
latency of Fireface UCX via USB, RME Driver print: 23.0024 print: 23.005 print: 23.0076 print: 23.0101 print: 22.9719 print: 22.9744 print: 22.9769 print: 22.9795 print: 22.982 print: 22.9845 print: 22.9871 print: 22.9896 print: 22.9922 print: 22.9947 print: 22.9973 print: 22.9998 print: 23.0024 print: 23.005
latency Fireface UCX via USB, Class Compliant Mode print: 24.3173 print: 24.3199 print: 24.3224 print: 24.3249 print: 24.3275 print: 24.33 print: 24.3326 print: 24.3352 print: 24.3377 print: 24.3403 print: 24.3429 print: 24.3454 print: 24.348 print: 24.3098 print: 24.3123
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