Re: [Alsa-user] new source of MIDI playback slow-down identified - 5a03b051ed87e72b959f32a86054e1142ac4cf55 thp: use compaction in kswapd for GFP_ATOMIC order > 0

2011-02-21 Thread Arthur Marsh
Clemens Ladisch wrote, on 22/02/11 18:07: Arthur Marsh wrote: I'm experiencing MIDI playback slow-downs when I'm observing kswapd0 active (a few percent of cpu in top output) in recent kernels. I git-bisected the problem down to: commit 5a03b051ed87e72b959f32a86054e1142ac4cf55 Author: Andrea

Re: [Alsa-user] new source of MIDI playback slow-down identified - 5a03b051ed87e72b959f32a86054e1142ac4cf55 thp: use compaction in kswapd for GFP_ATOMIC order > 0

2011-02-21 Thread Clemens Ladisch
Arthur Marsh wrote: > I'm experiencing MIDI playback slow-downs when I'm observing kswapd0 > active (a few percent of cpu in top output) in recent kernels. > > I git-bisected the problem down to: > > commit 5a03b051ed87e72b959f32a86054e1142ac4cf55 > Author: Andrea Arcangeli > Date: Thu Jan 13

Re: [Alsa-user] MIDI playback not keeping steady time with recent kernels

2011-02-21 Thread Arthur Marsh
Arthur Marsh wrote, on 06/02/11 21:37: Arthur Marsh wrote, on 06/02/11 16:06: Arthur Marsh wrote, on 06/02/11 12:08: Arthur Marsh wrote, on 05/02/11 17:30: Hi, I've had problems lately with recent kernels 2.6.37 and later, but haven't been able to pinpoint a specific change with git-bisect. M

[Alsa-user] Sigmatel 9205 & Diamond Sound Tube: No pass-through?

2011-02-21 Thread Jose G. Torres
Hello everyone, I have a Dell Latitude D820 that contains a Sigmatel 9205 sound card. I am trying unsuccessfully to use the card as a pass-through device. I have tried every alsa mixer setting I can find for the card, no luck. I've tried gnome-volume-control and I was able to get a level on t

Re: [Alsa-user] Capturing from multiple subdevices

2011-02-21 Thread Mr Dean Peterson
On Sun, 2/20/11, Sergei Steshenko wrote: > On Sun, 20 Feb 2011 19:44:12 +0100 c0 wrote: > > > hi. i was looking your audio chip (AD1988B) information in this page: > > http://www.analog.com/en/audiovideo-products/audio-codecs/ad1988b/products/product.html > > says that it has 10 DAC: > > 7.1 su

Re: [Alsa-user] Record 8 separate Line IN Channels from M-Audio Delta 1010 Card

2011-02-21 Thread James Shatto
-f cd is a shortcut for a STEREO track. AFAIK, the output for arecord is ONE file, with many channels in it. i.e. -f cd == -f S16_LE -t wav -c 2 -r 44100 and i.e. -f cdr == -f S16_BE -t wav -c 2 -r 44100 (what it gets converted to before burning a disc) or something like that... $ arecord -t wav

[Alsa-user] new source of MIDI playback slow-down identified - 5a03b051ed87e72b959f32a86054e1142ac4cf55 thp: use compaction in kswapd for GFP_ATOMIC order > 0

2011-02-21 Thread Arthur Marsh
I've sent the following to Andrea Arcangeli. The problem only occurred when kswapd0 was active, so a previous attempt at git-bisecting where I didn't force swapping didn't work. In the following case I was aided by the release of ALSA 1.0.24, which I compiled against each git-bisect attempt and

Re: [Alsa-user] Record 8 separate Line IN Channels from M-Audio Delta 1010 Card

2011-02-21 Thread Sergei Steshenko
On Mon, 21 Feb 2011 17:37:24 +0100 Peter Hoffmann wrote: wa > > (BTW can anyone point me to a tool to split a multi channel wav into a > file per channel?) > SoX (sox.sf.net), 'ecasound'; 'audacity'. Regards, Sergei. -

[Alsa-user] Record 8 separate Line IN Channels from M-Audio Delta 1010 Card

2011-02-21 Thread Peter Hoffmann
Hi, I want to record the 8 separate Line IN Channels from my M-Audio Delta 1010 Card. The card is recogniced nicely and a can record a single channel via arecord -d 10 -f cd -t wav -D channel1 out2.wav. I've set up the different channels in ~/.asoundrc. Now if I want to record a second channel in