Re: [LAU] RME Multiface and an extra 8 output channels

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To: <linux-audio-user@...>
Date: Thursday, May 16, 2013 - 8:16 am

On Wed, 2013-05-15 at 21:04 +0200, Jörn Nettingsmeier wrote:

Perhaps the noise floor at higher sample rates could be an issue for the
OP.

Sometimes higher sample rates allow to use a lower latency, for my RME
card, another model, not the MF, it's not like that, if I set it to
higher sample rates, the frames/period automagically becomes higher too.

IMO 48 KHz is high enough, not only for my home studio, also for
professional usage.

FWIW, since my card still is within the warranty period I'm testing if
everything does work on a Windows I installed to do the tests. I noticed
that for sample rates from 32 KHz to 96 KHz nothing connected to the
analog inputs of the card, the noise floor shown by TotalMix is at -110
[1] and for sample rates from 128 KHz to 192 KHz it's at -54. If I
connect an elCheapo no-name device, the noise floor for sample rates
from 32 KHz to 96 KHz does raise to -87.

Even if I would use sample rates higher than 48 KHz, it would be ok for
my taste, but it's not what you want for professional usage.
A Yamaha MT 44D, a 4-Track cassette recorder already has a better SNR
[2].

[1] From the user manual: "(SNR): 113 dB RMS unweighted, 116 dBA @ 44.1
KHz", no information about the SNR for other sample rates.
[2] From the service manual: "Signal-to-Noise Ratio (EIAJ) (Dolby OFF)
55 dB", "(Dolby C ON) 67 dB".

So at least the card I'm using has got a noise floor for sample rates

Perhaps it's not like that for more expensive RME cards.

Regards,
Ralf

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Messages in current thread:
[LAU] RME Multiface and an extra 8 output channels, Iain Mott, (Mon May 13, 9:14 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Jörn Nettingsmeier, (Wed May 15, 7:04 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Thu May 16, 8:16 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Jörn Nettingsmeier, (Fri May 17, 8:58 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Fri May 17, 9:18 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Fons Adriaensen, (Fri May 17, 9:08 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Fri May 17, 9:37 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Thu May 16, 8:27 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Wed May 15, 7:12 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Jason Jones, (Wed May 15, 8:04 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Brent Busby, (Mon May 13, 10:11 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 4:32 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Brent Busby, (Tue May 14, 12:58 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 1:05 pm)
[LAU] OT: RME Multiface and an extra 8 output channels, Ralf Mardorf, (Tue May 14, 2:21 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Brent Busby, (Tue May 14, 1:16 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 1:01 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Brent Busby, (Tue May 14, 1:12 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 1:18 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 4:35 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Jörn Nettingsmeier, (Wed May 15, 7:07 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 9:49 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Fons Adriaensen, (Tue May 14, 3:06 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 3:05 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Florian Faber, (Tue May 14, 2:10 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Joe Hartley, (Tue May 14, 12:31 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Tue May 14, 11:13 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Tue May 14, 10:04 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Tue May 14, 9:21 am)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Mon May 13, 11:18 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Mon May 13, 11:50 pm)
Re: [LAU] RME Multiface and an extra 8 output channels, Ralf Mardorf, (Mon May 13, 9:51 pm)