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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