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Re: [fluid-dev] ALSA driver consuming too much CPU
From: |
Paul Millar |
Subject: |
Re: [fluid-dev] ALSA driver consuming too much CPU |
Date: |
Tue, 21 Nov 2006 14:30:41 +0000 |
User-agent: |
KMail/1.9.5 |
On Saturday 18 November 2006 12:00, Mihail Zenkov wrote:
> You have this problem with sample rate = 48000 ?
I'm not sure which of the problems you mean (failing to set the sample rate or
100% CPU usage), but both remain a problem.
I can set the sample rate to 48kHz in fluid_settings_t; but, when I start the
audio output, it falls back to 41.1kHz giving the usual warning:
fluidsynth> The sample rate is set to 44100, the synthesizer may be out of
tune
BTW, when I try using my second sound card there is no problem. (I have two
in my desktop machine, because the built-in Intel chip was only fairly
recently supported under Linux.)
hw:0 is Ensoniq AudioPCI (TriTech TR28602)
hw:1 is Intel 82801DB-ICH4 (Realtek ALC650D)
The following table contains the results when trying to set different
frequencies with the cards. "Y" means I get the above warning message
("...synthesizer may be out of tune"), "N" means no message generated.
Sound card
Freq/kHz hw:0 hw:1
44.1 Y N
48 Y N
BTW, the Wikipedia article about the card:
http://en.wikipedia.org/wiki/Ensoniq_AudioPCI
says the card supports "16-bit [...] playback at up to 48 kHz".
Cheers,
Paul.
PS.
setting the ALSA device to "default" whilst trying to set the freq to 48kHz
still gives 100% CPU usage but setting this to "hw:0" works fine.
pgpCCyu9npEMY.pgp
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- Re: [fluid-dev] ALSA driver consuming too much CPU, (continued)
- Re: [fluid-dev] ALSA driver consuming too much CPU, Garett Shulman, 2006/11/16
- Re: [fluid-dev] ALSA driver consuming too much CPU, Josh Green, 2006/11/16
- Re: [fluid-dev] ALSA driver consuming too much CPU, Paul Millar, 2006/11/16
- Re: [fluid-dev] ALSA driver consuming too much CPU, Mihail Zenkov, 2006/11/18
- Message not available
- Re: [fluid-dev] ALSA driver consuming too much CPU, Mihail Zenkov, 2006/11/21
- Re: [fluid-dev] ALSA driver consuming too much CPU, Paul Millar, 2006/11/21
- Re: [fluid-dev] ALSA driver consuming too much CPU, Mihail Zenkov, 2006/11/21
- Re: [fluid-dev] ALSA driver consuming too much CPU, Josh Green, 2006/11/19
- Re: [fluid-dev] ALSA driver consuming too much CPU, Paul Millar, 2006/11/21
- Re: [fluid-dev] ALSA driver consuming too much CPU, Josh Green, 2006/11/21
Re: [fluid-dev] ALSA driver consuming too much CPU,
Paul Millar <=