Linux-audio-user November 2005

linux-audio-user@lists.linuxaudio.org

147 participants
156 discussions

[linux-audio-user] /etc/modutils/alsa and debian/unstable

by Atte André Jensen

Hi I'm having trouble with my alsa setup under debian/unstable with the multimedia kernel from demudi. If I have my usb hub (with 3 usb keyboards + edirol sound card) plugged in during boot, everything works fine. How ever if I plug them in later *or* pulls/reinserts it after an otherwise succesful plugged-in boot, the order gets mixed up. Most anoying is that the edirol sound card is now card 4, instead of 1. This also means the I cannot figure out where it is for a jackd call. I used to have everything showing up at the same place every time. Hope someone can help me figure out what I'm doing wrong. NB: I *did* run modules-update Here's some info from my system, first after boot with the usb in: [atte@aarhus ~]$ cat /proc/asound/cards 0 [SI7012 ]: ICH - SiS SI7012 SiS SI7012 with ALC200,200P at 0xdc00, irq 10 1 [UA1A ]: USB-Audio - EDIROL UA-1A Roland EDIROL UA-1A at usb-0000:00:03.1-2.1, full speed 2 [Keyboard ]: USB-Audio - MK-449C USB MIDI Keyboard Evolution Electronics Ltd. MK-449C USB MIDI Keyboard at usb-0000:00:03.1-2.2, f 3 [keyboard ]: USB-Audio - MK-249C USB MIDI keyboard Evolution Electronics Ltd. MK-249C USB MIDI keyboard at usb-0000:00:03.1-2.3, f 4 [keyboard_1 ]: USB-Audio - MK-249C USB MIDI keyboard Evolution Electronics Ltd. MK-249C USB MIDI keyboard at usb-0000:00:03.1-2.4, f Then after pulling/reinserting it: [atte@aarhus ~]$ cat /proc/asound/cards 0 [SI7012 ]: ICH - SiS SI7012 SiS SI7012 with ALC200,200P at 0xdc00, irq 10 1 [Keyboard ]: USB-Audio - MK-449C USB MIDI Keyboard Evolution Electronics Ltd. MK-449C USB MIDI Keyboard at usb-0000:00:03.1-2.2, f 2 [keyboard ]: USB-Audio - MK-249C USB MIDI keyboard Evolution Electronics Ltd. MK-249C USB MIDI keyboard at usb-0000:00:03.1-2.3, f 3 [keyboard_1 ]: USB-Audio - MK-249C USB MIDI keyboard Evolution Electronics Ltd. MK-249C USB MIDI keyboard at usb-0000:00:03.1-2.4, f 4 [UA1A ]: USB-Audio - EDIROL UA-1A Roland EDIROL UA-1A at usb-0000:00:03.1-2.1, full speed [atte@aarhus ~]$ cat /etc/modutils/alsa alias char-major-116 snd alias char-major-14 soundcore # i810 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss alias snd-card-0 snd-intel8x0 alias sound-slot-0 snd-card-0 # ua-1a alias sound-service-1-0 snd-mixer-oss alias sound-service-1-3 snd-pcm-oss alias sound-service-1-8 snd-seq-oss alias sound-service-1-12 snd-pcm-oss alias snd-card-1 snd-usb-audio alias sound-slot-1 snd-card-1 # virtual midi alias sound-service-2-1 snd-seq-oss alias sound-service-2-8 snd-seq-oss alias snd-card-2 snd-virmidi alias sound-slot-2 snd-card-2 #evolution 1 alias snd-card-3 snd-usb-audio alias sound-slot-3 snd-card-3 #evolution 2 alias snd-card-4 snd-usb-audio alias sound-slot-4 snd-card-4 options snd-intel8x0 index=0 options snd-usb-audio index=1,3,4,5,6 vid=0x0582 nrpacks=1 options snd-virmidi index=2 My kernel: [atte@aarhus ~]$ uname -r 2.6.12-3-multimedia-686 -- peace, love & harmony Atte http://www.atte.dk

19 years

[linux-audio-user] intermittent X blackout in rt kernel

by Aaron Phillips

Hello, Has anyone experienced X going blank at random times for between 1 and 5 seconds at a pop? I started out with a demudi mm kernel (I'm running DeMudi) and never experienced this problem. Once I ran my own built-from-source 2.6.14-rt13 kernel, I saw this behavior consistently. It's very annoying. Basically, while in X, the screen would go blank every so often for a short period and then reappear. Periods between blackouts would be between 1 second and 1 minute. I am wondering if it has something to do with the video having too low of a priority since this is a realtime-preempt kernel. I tried setting X to a higher prio with chrt, but that had no effect. Anyone have an idea? Thanks, Aaron

19 years

[linux-audio-user] Audiophile usb

by Jason Burchfield

I am trying to get the audiophile usb i just bought to work with my Fedora Core 4 system. The snd_usb_audio driver loaded at boot. I cannot get any sound from the card. I can connect to JACK and jack connects to hydrogen, jackmix, and audour, but there is not any sound in or out. Does anyone have any suggestions? Thanks, Jason

19 years

[linux-audio-user] Building MPlayer with JACK support on DeMuDi

by David

I'm trying to build MPlayer as a Debian package, following the instructions on this page => http://www.princessleia.com/MPlayer.php It worked the first time around, but didn't have JACK support. Now, I'm trying it again - after installing bio2jack from source plus the libbio2jack0 and libjack0.80.0-dev packages - and including " --enable-jack --with-bio2jack=/usr/local/lib/ " in the DEB_BUILD_OPTIONS variable. configure runs fine, but make fails with the following error: /usr/bin/ld: skipping incompatible /usr/local/lib/libbio2jack.so when searching for -lbio2jack /usr/bin/ld: skipping incompatible /usr/local/lib/libbio2jack.a when searching for -lbio2jack My /usr/local/lib/libbio2jack.so points to /usr/local/lib/libbio2jack.so.0.8.0 The bio2jack package I installed from source is also version 0.8 - why then is libbio2jack "incompatible"? Can anyone point me in the right direction? P.S. I've tried the unofficial mplayer package for debian from http://marillat.free.fr/ but it failed to run (..with errors such as "Bad CPU usage" or something like that, if I recall correctly), and I forgot to check if it was compiled with JACK support or not. -- http://hl.afraid.org/~david/ --

19 years

[linux-audio-user] Edirol UA-25: Any issues?

by Christoph Eckert

Hi, I'm looking for a device, mainly to get better audio quality as my Aureon offers (16Bits only), and to record some acoustic guitar and mics. AFAIK the Edirol UA-25 works plug and play with snd_usb_audio, but still some questions: * I read it is bus powered; but I wonder how can it get 48V phantom power from the USB bus?!? * I read somewhere on the web that there was a little hiss on the inputs. Can anyone confirm this, and is it OK or too much? * Can I use both outputs at the same time to connect all of them to different destinations? Do they appear in ALSA/JACK as 2 or 4 different ports? * Last but not least: Does it run at full duplex (2 ins and outs at the same time), and what latency can it provide (the lower the better :) ? Best regards ce

19 years

[linux-audio-user] midisport snd-usb-audio mysteries

by Hans Fugal

My M-Audio Radium 61 is on the fritz again. With the recent changes in udev, where udev replaces hotplug, I had to do some trickery to get the firmware to load. When it finally did, it dumped me into a problem I've seen many times before: the keyboard is recognized as existing by the ALSA sequencer, but there doesn't seem to be any midi data coming from it (neither zyn nor aseqview). Unplugging, powering off, etc. yields no different result. Converseley, when it's working fine I can unplug, power off, etc. and it always comes back just fine. Well, always except for the time when it decides to go awol. I've also tried unloading snd-usb-audio. In the past the problem has been resolved by rebooting, but I'm feeling adventurous and don't particularly need to use the keyboard at the moment, so I think I'll try to track it down. So my question is, where does the problem most likely lie? Is the firmware perhaps not loading properly for some reason? Is something in one of the ALSA kernel modules in a strange state? snd-usb-audio, or one of the other snd- modules, or maybe the *hci modules? -- Hans Fugal ; http://hans.fugal.net There's nothing remarkable about it. All one has to do is hit the right keys at the right time and the instrument plays itself. -- Johann Sebastian Bach

19 years

[linux-audio-user] VIA82xx/ICE1232, low sound level on recording

by S. Massy

Hi, Well, the subject line pretty much says it all; I plug a microphone in the mic jack of the on-board sound chip and, when recording, the level is very low. Turning on "MIC Boost" does help a very little, but that's about it; raising "Capture" over 85% yields a sound not unlike an idling car. Looking around on the internet, I could find information about low playback level problems with this card, but nothing regarding recording levels. Anyone has any idea on what the matter might be? See full information below. Thanks, S.M. Card: VIA 82C686A/B rev50 Chip: ICEnsemble ICE1232 ALSA Version: 1.0.10rc1 uname -a: Linux vysotskij 2.6.14-gentoo-r2 #2 PREEMPT Sun Nov 13 10:14:22AST 2005 i686 Celeron (Coppermine) GenuineIntel GNU/Linux -- smassy(a)sdf.lonestar.org

19 years

[linux-audio-user] Converting streaming Ogg into MP3 in real-time

by Steven Clift

Any thoughts? With the Democaster http://dowire.org/wiki/Democaster protoype we automatically convert Ogg to MP3 and vice versa for our _on-demand_ archives (something we use with Icecast2). I need to know more about the capacity issues with real-time conversion. What is the best way to do this in both real-time and/or for on-demand files? Our project's goal is to make local community public meetings and events accessible while also using non-proprietary/open source or free to use software to the greatest extent possible. We have to use MP3 to make the audio accessible for now. As we bring on some community groups to use the system with little technical savvy, I'd like to say, encode in Ogg (Winamp w/Oddcast) and we will do the rest. Sending community group representatives to secondary site to download LAME encoders is something that may scare them away. Cheers, Steven Clift Steven Clift - http://publicus.net - Reply to: clift(a)publicus.net Join DoWire: http://dowire.org E-Democracy: http://e-democracy.org

19 years

[linux-audio-user] Digigram cards (especially VXpocket)

by Jason White

Are there any comments on the reliability of Digigram cards under Alsa? In my ongoing research into suitable cards for spdif input and output I am considering buying a VXpocket PCMCIA card for my laptop, for which there's an Alsa driver. My laptop is an AMD64 machine, so any experience with the VXpocket driver under the AMD64 architecture would be especially relevant. Any comments on their PCI cards would also be of interest, but at present I am focusing on the laptop. This also connects nicely into the discussion of USB vs. PCMCIA solutions that started on this list last week.

19 years

[linux-audio-user] delta 44...80% there??

by reuben

I have installed the delta 44 card, and alsa detected it first time after a boot. Problem is of course I'm not getting sound. Using kmix, I turned all the channels up...but no audio. What should I do next? (If I do lsmod | grep snd, I get:) snd_ice1712 56388 1 snd_ice17xx_ak4xxx 4224 1 snd_ice1712 snd_ak4xxx_adda 6144 2 snd_ice1712,snd_ice17xx_ak4xxx snd_cs8427 9216 1 snd_ice1712 snd_i2c 5376 2 snd_ice1712,snd_cs8427 snd_mpu401_uart 6784 1 snd_ice1712 snd_rawmidi 22816 1 snd_mpu401_uart snd_seq_device 8204 1 snd_rawmidi snd_intel8x0 30144 4 snd_ac97_codec 72188 2 snd_ice1712,snd_intel8x0 snd_pcm_oss 46368 0 snd_mixer_oss 16128 1 snd_pcm_oss snd_pcm 78344 5 snd_ice1712,snd_intel8x0,snd_ac97_codec,snd_pcm_oss snd_timer 21764 2 snd_pcm snd 48644 21 snd_ice1712,snd_ak4xxx_adda,snd_cs8427,snd_i2c,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 9184 1 snd snd_page_alloc 10120 2 snd_intel8x0,snd_pcm

19 years

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Linux-audio-user November 2005