Linux-audio-user July 2003

linux-audio-user@lists.linuxaudio.org

122 participants
115 discussions

by holborn

Hi! First Release. gmorgan is a .. Rhythm Station, an organ with auto-accompaniment. Uses MIDI and the ALSA sequencer for play the rhythm patterns. Styles, patterns and sounds, the mixer settings, can be edited and saved. Tested on Gentoo, debian PIII 933 and PII 300 REQUERIMENTS -------------------------- Linux ALSA Fltk Take a look at http://personal.telefonica.terra.es/web/soudfontcombi/ And please ... if you enjoy this prog and wants to share patterns, send me, and i will include in future versions, i have a large TODO, and i need some help. Josep

21 years, 11 months

[linux-audio-user] Jack 0.70.4 crashes on connection

by Mikhail Ramendik

Hello! I am trying to use jack 0.70.4. The reason for the old version is simple - rosegarden 4 0.9.1 fails to build with 0.72.4. But before I can use rosegarden, I need to run fluidsynth. And I can't get as far as this. Connecting fluidsynth's jack ports to the alsa ones causes an immediate jack crash! Any advice on getting this to work would be very appreciared! Deteils follow. I run three root terminal windows (rxvt or xterm - does not matter). In one of them I start jackd; in the other, fluidsynth; and in the third, try to get ports connected. Here is all that I do, and the output I get. In the jackd terminal: === [root@ramendik misha]# jackd -d alsa -d hw:0 jackd 0.70.4 Copyright 2001-2003 Paul Davis and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support loading driver .. creating alsa driver ... hw:0|1024|2|48000|swmon|swmeter|rt open port alsa_pcm:capture_1 has mixdown = 0x4001da28 port alsa_pcm:capture_2 has mixdown = 0x4001da28 port alsa_pcm:playback_1 has mixdown = 0x4001da28 port alsa_pcm:playback_2 has mixdown = 0x4001da28 starting engine === in the fluidsynth terminal: === [root@ramendik misha]# fluidsynth -a jack YamahaGrand_Adcock.SF2 fluidsynth version 1.0.2 Copyright (C) 2000-2002 Peter Hanappe and others. FLUID Synth comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions; see the COPYING file for details. SoundFont(R) is a registered trademark of E-mu Systems, Inc. Type 'help' to get information on the shell commands. > === This happens in the jackd terminal: === port fluidsynth:left has mixdown = 0x4001da28 port fluidsynth:right has mixdown = 0x4001da28 === In the third terminal: === [root@ramendik misha]# jack_connect fluidsynth:left alsa_pcm:playback_1 engine sample rate: 48000 [root@ramendik misha]# jack_connect fluidsynth:right alsa_pcm:playback_2 engine sample rate: 48000 === This causes an immediate crash of jackd, with this output: === cannot send event to client [jack_connect] (Broken pipe) jack main caught signal 13 === at the same time in the fluidsynth terminal: === > zombified - calling shutdown handler fluidsynth: error: Help! Lost the connection to the JACK server === What "zombified" means is clear - it also happens if I simply Ctrl-C the jackd terminal. So it looks like a jack crash, not a fluidsynth one. Help... Thanks in advance for any tips. Yours, Mikhail Ramendik

21 years, 11 months

[linux-audio-user] reservations and audio quality

by Daniel James

I know this is a year old, but I just found it today. It might be of interest to people concerned with scheduling and low latency http://www.eetimes.com/story/OEG20020621S0075 Anybody on the list running hard real-time Linux? Cheers Daniel

21 years, 11 months

RE: [linux-audio-user] [OT] an "intelligent" website for free mus ic?

by Matthew Sargent

> Where is this website ? :-) I wish I knew, I'd be more than happy to contribute music to it. Cheers Matt

21 years, 11 months

Re: [linux-audio-user] gmorgan-0.01

by holborn

Ops ... sorry ... run make ... and after make install Is changed now in the package. Last nigth was a long nigth :-) Josep

21 years, 11 months

[linux-audio-user] good article on setting PCI latency and such

by Vincent Touquet

Hi, Just wanted to plug the following article: http://www-106.ibm.com/developerworks/linux/library/l-hw2/ Could be interesting if your soundcard is not getting enough PCI bus cycles and it is causing buffering problems. Another way to improve your low latency system. regards, v

21 years, 11 months

[linux-audio-user] noteedit fails unless run as root

by Mikhail Ramendik

Hello! Previously, noteedit worked all right in my system, run as user. It worked with fluidsynth (which was run as root) via alsa. Now, it no longer starts as user. Instead it outputs a window that says: === An internal error happened somewhere. The message is: "correctReadTrillsSlursAndDynamics: internal error" Error Code is: 5 The program must be interrupted. === As root, it still starts and works. I have tried rebuilding noteedit; this did not solve the problem. The change in the system was that I have built and installed jack, ladspa and rosegarden. However, jackd is NOT running; nor is rosegarden. Of course, it's possible to run noteedit as root - seems like I'll have to do it with rosegarden anyway. But this is not something I'd prefer to do. Perhaps there is a cleaner way of fixing this? Thanks in advance for any answers! Yours, Mikhail Ramendik

21 years, 12 months

[linux-audio-user] jack+fluidsynth: no sound

by Mikhail Ramendik

Hello! Sorry for the previous letter. The problem was fixed by pointing jackd to the device hw:0 . Now it does not crash - but nor does it output any sound! I run all of the following as root, in this order, from different terminal windows: jackd -d alsa -d hw:0 fluidsynth --verbose -a jack YamahaGrand_Adcock.SF2 noteedit I use NoteEdit because I have already tested it with fluidsynth (but without jack). The --verbose option for fluidsynth was added to diagnose the problem. So, I play something on noteedit - with all the default settings, in the same way as before (with alsa, when it worked). And I see noteon and noteoff lines in fluidsynth. But no sound is output! Tried aplay to the device hw:0 for a test. It works fine. So, the problem seems to be with either jack, or fluidsynth jack support. Thanks in advance for any tips on fixing this! Yours, Mikhail Ramendik

21 years, 12 months

[linux-audio-user] Jack crashes

by Mikhail Ramendik

Hello! I am trying to use jack 0.70.4. The reason for the old version is simple - Rosegarden 4 0.9.1 fails to build with 0.72.4. /tmp/jack is symlinked to /mnt/ramfs. I start "jack -d alsa" from a root terminal window. It starts successfully (but with a warning about the "plug" layer). And it runs, although it reports xruns every time I move a window. This lasts while no clients are connected to jack. Now I start "fluidsynth -a jack" from another root terminal window. (No further parameters, and I have not attempted to get any actual sound as yet). It connects successfully. But very soon the following happens in the window that now runs jackd: === could not complete playback of 1024 frames cycle execution failure, exiting telling signal thread that the engine is done jack main caught signal 1 === With this, jackd exits. The same happens if rosegarden is used as the client, instead of fluidsynth. What should I do to fix this problem? Thanks in advance for any answers! Yours, Mikhail Ramendik

21 years, 12 months

[linux-audio-user] Building a DAW - couple of questions

by Greg Reddin

Hey folks, I'm considering building a Linux DAW and have a few questions. First of all I have a Delta 1010LT soundcard. Does anyone have experience with using that card on Linux? Any caveats I should know about? Secondly, I think I've narrowed down my mobo/CPU combination and wonder if there's anything to watch out for there. Here it is: CPU: AMD Athlon XP 2400 Thoroughbred 2.0 Ghz 266Mhz FSB Mobo: Asus A7N8X Deluxe NVIDIA nForce2 SPP, nForce2 MCP-T chipsets Also, related to hardware, there seems to be a myriad of hard disk choices out there. The mobo seems to have built in support for standard ATA IDE and SATA. I haven't read the manual yet to find out the details, but I'm thinking about going the older ATA100, 7200RPM route since the drives are about half the price. Am I shooting myself in the foot by doing this? Should I buy a PCI IDE controller or is it possible to get reasonable results from the onboard controller? What are some drives you have had success (or failure) with? Finally, I would like to be able to record in remote locations without having to bring along a monitor, keyboard, mouse, etc. I was thinking about using my laptop to open a remote X session on the main box. Is that a practical scenario or would that drain too many resources on the main box to be productive? This is mainly an experimental project. I don't need this box for everyday professional use or anything. I'm just trying to build a Linux box on a shoestring and hopefully get it to work with the audio stuff. I'm really trying to keep costs down to around $400 US -- pipe dream maybe, but we'll see. Thanks, Greg __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

21 years, 12 months

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Linux-audio-user July 2003