Linux-audio-user August 2006

linux-audio-user@lists.linuxaudio.org

146 participants
124 discussions

[linux-audio-user] where to put alsa parameters for udev-loaded devices

by Dan Easley

I'm using a Tascam US-122 with a laptop running FC5/CCRMA. I need to have the USX2Y module loaded with an "nrpacks=2" parameter, rather than its default of '4'. Normally, I would put this in /etc/modprobe.conf - but the device is loaded not at startup, but instead by udev. There are no entries for the driver in modprobe.conf, and I can't seem to find where to put the parameter within udev's folders. Any ideas on where this setting should go? I've been manually unloading the driver, then reloading it with that option, but I'm trying to avoid that kind of work on stage. Thanks! -- daneasley(a)gmail.com dan(a)towndowner.com dan(a)burntpossum.com http://towndowner.com http://burntpossum.com

18 years, 5 months

[linux-audio-user] XMMS and Firefox (or Flash?) not playing along nicely

by Florin Andrei

Somehow XMMS and Firefox (or rather Firefox media plugins) seem to compete over sound resources. If I start XMMS and then, say, go to YouTube to watch a video, there's no sound from the browser. I have to kill XMMS, browse again, then it works. I am under the impression that it only happens with Flash movies, but those are anyway the only ones that play directly in the browser - for the other formats I use the MediaPlayerConnectivity plugin for Firefox and configured it to launch Xine for WMV, Qt and Real movies. What's the cause and how can I fix it? Fedora Core 5 ALSA-1.0.11 XMMS-1.2.10 Firefox-1.5.0.4 Flash-7.0r63 -- Florin Andrei http://florin.myip.org/

18 years, 5 months

[linux-audio-user] Making a Compressor

by Renato Fabbri

does anyone know the basic procedures for making a software audio compressor? i searched the web, nothing i could find... renf __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 5 months

[linux-audio-user] problem with new machine

by Dave Phillips

Greetings: Well, the hardware has been assembled, but I have a show-stopper of a problem. When I try to start the machine I get a flash from the cool blue lights on my Antec case, the CPU fan does a little jig, then nothing. :( So how do I go about diagnosing this thing ? All possible connections have been made between the case, the power supply, and the mobo. I've scoured the manuals for those pieces, I can't see that I've missed connecting anything. Here's the main machine parts: MSI K8N Neo2 Platinum motherboard AMD64 CPU Antec Sonata II case with power supply 1 GB RAM in slot 1 Seagate Barracuda drive Lite-on DVD/CD RW drive Any and all suggestions are welcome. I'd like to get this iron running myself, the bench fees at the local shops are outrageous. Best, dp

18 years, 5 months

[linux-audio-user] syncing with jack

by Atte André Jensen

Hi I'm a bit confused about how to synchronize instance hydrogen and seq24 (or rosegarden4). I guess they sync alright, but do I really have to set the tempo in all programs? This would make tempo changes quite cumbersome. -- peace, love & harmony Atte

18 years, 5 months

[linux-audio-user] HDSP MADI and MIDI

by Benjamin Fabricius

Hi, i have a rme hdsp madi card running and was wondering if i could make use of the midi ports in it to gain control to some functions. qjackctl does not shows my audio ports and not my midi ports when jack is running. is this normal? i would have expected to see my raw midi ports in the connections window.... my card is running fine otherwise... heres some output: vst:/mnt/testsuite # cat /proc/asound/cards 0 [default ]: HDSPM - HDSPM MADI RME HDSPM MADI at 0xd0200000, irq 11 vst:/mnt/testsuite # cat /proc/asound/devices 4: [0- 0]: hardware dependent 9: [0- 1]: raw midi 8: [0- 0]: raw midi 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 0: [0- 0]: ctl 1: : sequencer 33: : timer vst:/mnt/testsuite # amidi -l Device Name hw:0,0 MIDI 1 hw:0,1 MIDI 2 !!!!!BUT: aconnect does not show any writable or readable midi sources vst:/mnt/testsuite # aconnect -i -o client 0: 'System' [type=kernel] 0 'Timer ' 1 'Announce ' could this be a driver problem or am i missing something here? i've never worked with midi under linux so any help would be greatly apreciated. thanks and cheers, Benjamin -- ------------------- Benjamin Fabricius German Student Lawo AG

18 years, 5 months

[linux-audio-user] HDSP MADI and MIDI (correction)

by Benjamin Fabricius

Hi again, Sorry made a typing mistake there. it should have been qjackctl does show my audio ports but not my midi ports when jack is running. is this normal? i would have expected to see my raw midi ports in the connections window.... Thanks... mondays are kind of ruff ;-) -- ------------------- Benjamin Fabricius German Student Lawo AG

18 years, 5 months

[linux-audio-user] Macbook Pro + JACKD = incredible latency

by Ivica Ico Bukvic

FWIW, wanted to share some impressive performance I managed to pull off earlier today from my new toy: RECIPE: 1 Macbook Pro 1 Ubuntu Dapper (vanilla 2.6.15-26 kernel) 1 adjustment to rtlimits (total of 2 lines) 1 fglrx driver 1 Xgl with all eye-candy you can get 1 JACK + Qjackctl 1 32 x 3 buffer size Mix it up. Run in realtime. RESULT: xrun-free 2ms latency on a crummy built-in soundcard (2 in, 6 out) plus all the eye-candy goodness you can possibly dream of at approx. 14% CPU. ;-) Ivica Ico Bukvic, D.M.A. Composition Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-7047 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/people/faculty/bukvic/

18 years, 5 months

[linux-audio-user] sample rate for i8x0

by Atte André Jensen

Hi I wan't to play a little with ardour, for now using my (I know, shitty) onboard soundcard. Does anyone happen to know what my card's sample rate is, or (I'm interrested in this anyways) how this information is retrieved from the system? BTW: It's an IBM T41, running stock ubuntu 2.6.15-26-386 kernel. atte@ajstrup:~$ lspci 0000:00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03) 0000:00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03) 0000:00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) 0000:00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) 0000:00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) 0000:00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01) 0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 81) 0000:00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 01) 0000:00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 01) 0000:00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01) 0000:00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01) 0000:00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 01) 0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500] 0000:02:00.0 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus Controller (rev 01) 0000:02:00.1 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus Controller (rev 01) 0000:02:01.0 Ethernet controller: Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile) (rev 03) 0000:02:02.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01) atte@ajstrup:~$ lsmod | grep snd snd_seq_dummy 3844 0 snd_seq_oss 33536 0 snd_seq_midi 9376 0 snd_rawmidi 25504 1 snd_seq_midi snd_seq_midi_event 7552 2 snd_seq_oss,snd_seq_midi snd_seq 51984 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_seq_device 8716 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq snd_intel8x0 33692 1 snd_ac97_codec 93088 1 snd_intel8x0 snd_ac97_bus 2304 1 snd_ac97_codec snd_pcm_oss 53664 0 snd_mixer_oss 18688 1 snd_pcm_oss snd_pcm 89864 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss snd_timer 25220 2 snd_seq,snd_pcm snd 55268 12 snd_seq_oss,snd_rawmidi,snd_seq,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 10208 1 snd snd_page_alloc 10632 2 snd_intel8x0,snd_pcm -- peace, love & harmony Atte

18 years, 5 months

[linux-audio-user] own kernel, ubuntu

by Atte André Jensen

Hi I just got a new laptop, and would like to compile my own kernel (unpatched at first). Does anyone here have or know of a script or sequence of commands for compiling a drop-in replacement for a standard ubuntu kernel with a kernel.org kernel. Preferrably without having to go via a .deb... -- peace, love & harmony Atte

18 years, 5 months

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Linux-audio-user August 2006