Linux-audio-user August 2005

linux-audio-user@lists.linuxaudio.org

169 participants
209 discussions

[linux-audio-user] MIDI-Softsynth-Latency?

by Michael Wagner

Hello there, I recently noticed, that my MIDI-Software lags about 1/8 behind my MIDI-Hardware. AFAICR, there was no noticeable lag before I bought a used MOTU MIDI express XT 8x8 parallel port MIDI interface. I've tested this with ZynAddSubFX and AMS, whereas I used Seq24 and a wrecked MIDI-Keyboard respectively as input devices. Does anyone know a way to solve this issue? Thank you, -Michael

19 years, 3 months

[linux-audio-user] Sound Blaster Live External USB does not work with jack

by Peter Butler

I'm having problems using jack with the Sound Blaster Live 24 Bit External USB sound card. I can use non-jack ALSA applications (e.g. xmms) with the card with no problems. This machine has the following sound cards: - Onboard Intel (intel8x0) hw:0 - MOTU USB MIDI Interface (snd-usb-audio) - Sound Blaster Live 24 Bit External (snd-usb-audio) hw:1 Starting jack like this: jackd -v -d alsa -d hw:1 Results in the following error message: registered builtin port type 32 bit float mono audio loading driver .. new client: alsa_pcm, id = 1 type 1 @ 0x8056860 fd = -1 creating alsa driver ... hw:1|hw:1|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:1 configuring for 48000Hz, period = 1024 frames, buffer = 2 periods Couldn't open hw:1 for 32bit samples trying 24bit instead Couldn't open hw:1 for 32bit samples trying 24bit instead new buffer size 1024 registered port alsa_pcm:capture_1, offset = 4096 registered port alsa_pcm:capture_2, offset = 8192 registered port alsa_pcm:playback_1, offset = 0 registered port alsa_pcm:playback_2, offset = 0 registered port alsa_pcm:playback_3, offset = 0 registered port alsa_pcm:playback_4, offset = 0 registered port alsa_pcm:playback_5, offset = 0 registered port alsa_pcm:playback_6, offset = 0 ++ jack_rechain_graph(): client alsa_pcm: internal client, execution_order=0. -- jack_rechain_graph() could not start playback (Broken pipe) DRIVER NT: could not start driver cannot start driver When I start jack using hw:0 everything works well. I can use the MIDI controller to play qsynth (and other instruments) through the onboard Intel sound. However the sound quality and noise from this card is terrible, so I want to use the external USB card. I am running ALSA driver version 1.0.9rc4a on Ubuntu Linux (kernel 2.6.10-5-686). Jack version is 0.99.0. I compiled the ALSA driver and libraries from source. Other (possibly relevant) information is below. If anyone can help me out with this I would be very grateful. Thanks in advance Peter Butler # cat /dev/sndstat Sound Driver:3.8.1a-980706 (ALSA v1.0.9rc4a emulation code) Kernel: Linux laptop 2.6.10-5-686 #1 Fri Jun 24 17:33:34 UTC 2005 i686 Config options: 0 Installed drivers: Type 10: ALSA emulation Card config: Intel 82801CA-ICH3 with AD1881A at 0x1c00, irq 11 Creative Technology SB Live! 24-bit External at usb-0000:00:1d.1-1.3, full spee MOTU Fastlane at usb-0000:00:1d.1-1.4, full speed Audio devices: NOT ENABLED IN CONFIG Synth devices: NOT ENABLED IN CONFIG Midi devices: 2: Fastlane Timers: 7: system timer Mixers: NOT ENABLED IN CONFIG # cat /etc/modprobe.d/sound options snd device_mode=0666 alias char-major-116 snd alias char-major-14 soundcore # On-board Intel Sound Card alias snd-card-0 snd-intel8x0 options snd-intel8x0 index=0 install snd-intel8x0 /sbin/modprobe --ignore-install snd-intel8x0 && \ /usr/sbin/alsactl restore >/dev/null 2>&1 || : remove snd-intel8x0 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; }; \ /sbin/modprobe -r --ignore-remove snd-intel8x0 alias sound-slot-0 snd-card-0 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 # USB Sound Blaster Live Sound Card alias snd-card-1 snd-usb-audio options snd-usb-audio index=1 alias sound-slot-1 snd-card-1 alias sound-service-1-0 snd-mixer-oss alias sound-service-1-3 snd-pcm-oss alias sound-service-1-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss options snd cards_limit=2 # cat /etc/asound.conf pcm.intel { type hw card 0 } pcm.dmix_intel { type dmix ipc_key 1024 ## needs to be a power of 2 slave { pcm "intel" period_time 0 period_size 1024 buffer_size 8192 rate 48000 ## not necessary } } pcm.dsnoop_intel { type dsnoop ipc_key 2048 slave { pcm "intel" } } pcm.asym_intel { type asym playback.pcm "dmix_intel" capture.pcm "dsnoop_intel" } pcm.pasym_intel { type plug slave.pcm "asym_intel" } pcm.dsp_intel { type plug slave.pcm "asym_intel" } ctl.dsp_intel { type hw card 0 } pcm.sblive { type hw card 1 } pcm.dmix_sblive { type dmix ipc_key 1024 slave { pcm "sblive" period_time 0 period_size 4096 buffer_size 32768 rate 48000 } } pcm.dsnoop_sblive { type dsnoop ipc_key 2048 slave { pcm "sblive" } } pcm.asym_sblive { type asym playback.pcm "dmix_sblive" capture.pcm "dsnoop_sblive" } pcm.pasym_sblive { type plug slave.pcm "asym_sblive" } pcm.dsp_sblive { type plug slave.pcm "asym_sblive" } ctl.dsp_sblive { type hw card 1 } pcm.!default { type plug slave.pcm "asym_sblive" } ctl.!default { type hw card 1 }

19 years, 3 months

[linux-audio-user] seq24 - strange notes

by Atte André Jensen

Hi Whenever I record comething in seq24 from my evolution usb keyboard I get strange extra notes showing up just about where the actual notes ends. What shall I make of this? The sound is fine, it just seems strange + messes up the clearness of the editor... Here's an example (the bd is cleaned up by hand, the hh still contains the extra notes): http://www.atte.dk/download/ghost.seq -- peace, love & harmony Atte http://www.atte.dk

19 years, 3 months

[linux-audio-user] 8th note triplets in rosegarden

by Atte André Jensen

Hi Ho do I quantize to 8th note triplets in rosegarden? A swing of 100% leaves out the second note of the triplet, so that won't work... -- peace, love & harmony Atte http://www.atte.dk

19 years, 3 months

[linux-audio-user] help me help you - raincast.org

by Leonard "paniq" Ritter

http://www.raincast.org -- -- leonard "paniq" ritter -- http://www.paniq.org -- http://www.mjoo.org

19 years, 3 months

[linux-audio-user] help JACK Transport problems

by federico

hi, i want to run: * jackd (from qjackctl) * hydrogen * zynaddsubfx (controlled by: * seq24 ) i set up in seq24: Jack Transport: checked Transport Master: checked Master Conditionsl: no Live mode and in hydrogen i enable jack transport slave. when i hit play in seq24, hydrogen starts also, but they don't keep in sync! what i've done wrong? note that all programs are started by root (using sudo) could you help to solve this issue? thanks -- Federico

19 years, 3 months

[linux-audio-user] Re: "Music" made with Linux!

by Juhana Sadeharju

>From: "Shayne O'Connor" <forums(a)machinehasnoagenda.com> > >my songs. the problem isn't really that the open-source synths don't >sound any good, but that they're a little obtuse in *how* to get good >sounds I don't know because I have not heard very good sounds coming from open source software. The synthesis software could fail as well, until shown otherwise. The output could fail also for lack of playing/composing skills. That is why I want a MIDI file with superiour melodies for testing the commercial and the open source synths. Here is an example of what I mean by a good synth sounds: http://www.access-music.de/audiodemos/presets_on_parade_160.mp3 Check their other demos as well for melody based demos. Do that with your favorite open source software and let us know! Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

19 years, 3 months

[linux-audio-user] CD ripping, burning etc and dev question

by Greg

Hi list, short question: is CDparanoia still the standard for ripping / encoding music? (xiph.org/paranoia was last updated in 2001) more rambling: I want to protect my cd collection from destruction and make use of an older computer by outfitting it with a large hard disk and devote it to storing my music collection. I want to make a script that more or less automatically rips a CD to my preferences. So I want a command line CD ripper. The "grand" vision: to eventually make a low res GUI that displays on a small LCD or TV to rip music and navigate the music library. Specifically what i would want is to have attractive buttons that call other programs and some sort of basic file browser capability. What do you think would be the smartest (easiest) language and packages to do this with? my thanks, Greg

19 years, 3 months

[linux-audio-user] [ANN] Musix Live CD

by Lisandro Damián Nicanor Pérez Meyer

Musix [1] it's a Live CD, DemuDi like, specially prepared for the spanish speaking people. It has been arranged by a member of Lau-es. So, if there's anyone here who speaks spanish (or wants to give it a try), it can be downloaded in [2] and [3] [1] http://www.musix.org.ar/ [2] https://200.32.4.29/utiles/torrent [3] https://e.ututo.org.ar/utiles/torrent/ Cheers, Damian.- Anyone who says he can see through women is missing a lot. -- Groucho Marx

19 years, 3 months

[linux-audio-user] newbie with muse, ams and om

by Atte André Jensen

Hi I'm trying to sequence a few tracks in muse using ams and/or om. I started two instances of ams with "ams -j" and loaded a different patch in each. I also started om and om_gtk, and loaded two different patches. Audio out from the synths are routed to the alsa_pcm input. Now, I have the following problems: 1) If I select the two different om patches output is distorted when *both* patches are sounding. If one is ams an the other om sound is also distorted, but if I route it through jamin the sound is ok. Routing both om synths through jamin is still distorting... Shouldn't it be possible to just route multible synths the the alsa_pcm or should they be mixed somewhere? 2) I only see one output named "ams" in the O-Port in the track list. In the "Midi Port/Soft Synth" dialog how ever, I see 7 grayed out occurences of the name "ams". Am I doing something wrong or isn't it possible to run multible instances of ams from midi? I didn't include technical information about my system or software version, since I suspect that I'm simply doing something wrong... -- .''`. Peace, love & harmony : :' : Atte `. `' `- http://www.atte.dk

19 years, 3 months

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Linux-audio-user August 2005