[LAU] RME Multiface and an extra 8 output channels

Ralf Mardorf ralf.mardorf at alice-dsl.net
Fri May 17 21:37:27 UTC 2013


On Fri, 17 May 2013 23:08:29 +0200, Fons Adriaensen <fons at linuxaudio.org>  
wrote:
> If you measure anything else then either your measurement is bogus
> or the equipment you're testing is broken.

Sorry I can't resist, isn't is possible, that my measurements are bogus  
and that my equipment is broken?

Seriously, I just watched the meters of TotalMix and didn't measure  
anything, but at least I did connect a device to the inputs ;).

I guess I should have used another choice of words.

For the RME card I own, higher sample rates don't result in lower latency.  
If I increase the latency, low frames/period disappear and just higher  
frames/period can be chosen (on Windows, on Linux I can't get higher than  
48 KHz, since it doesn't work, seemingly a driver issue).

Somebody else pointed out that even 192 KHz don't provide to sample  
ultrasonic, so it can't be used for bat research, e.g. to find out  
different dialects of the same kind of bat in different areas.

If I chose higher sample rates > 96 KHz, I can see double the noise shown  
by TotalMix, than with sample rates <= 96 KHz, I wasn't able to hear a  
difference.

If this should be the same for other cards too, no lower latency and no  
ultrasonic (for bats between 15 and 100 KHz regarding to the Internet, I  
should know this without Google, since a former girlfriend did bat  
research, but I needed to google), than the OP perhaps could use 48 KHz  
for his needs.

I guess most of us agree, that if the gear is ok, 48 KHz are all that is  
needed for audio production, music and speech.


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