Linux-audio-user

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20472 discussions

[linux-audio-user] [ANN] ALSA Patch Bay 0.3

by Bob Ham

Hi all, I'm in a hacking mood :) I added an fltk (1.1) interface to alsa patch bay, and also updated the gtkmm interface to use 2.0.0. It can use both, or just one. Tarball here: http://pkl.net/~node/software/alsa-patch-bay-0.3.tar.gz (214KB) I also made a spiffy (if sparse) page for it here: http://pkl.net/~node/alsa-patch-bay.html Have fun, Bob

21 years, 5 months

[linux-audio-user] Serial MIDI driver

by Emiliano Grilli

Hello, I've just installed the last (8.1) SuSE and wonder if the serial uart MIDI driver can be used to work with an opcode studio64 (4 INs and 4 OUTs) MIDI interface. Can anyone point me into the right direction? TIA, -- emillo

21 years, 5 months

[linux-audio-user] tutka

by jordan muscott

Greets all, its been a while :) Anyone noticed or used this? http://www.nongnu.org/tutka/ its a Gtk/Gnome midi tracker, (I haven't built it yet myself). I don't remember it being mentioned round here beofre. regards, Jordan.

21 years, 5 months

[linux-audio-user] Re: Re: [Ardour-users] Re: [Alsa-devel] usb audio sound quality

by Paul Winkler

On Sun, Nov 10, 2002 at 02:10:25AM -0500, Paul wrote: > Paul Winkler <pw_lists(a)slinkp.com>, on Fri Nov 08, 2002 [05:47:56 PM] said: > > > > /me wishes there were a nice way to have multiple XF86Config's > > Well, you can. You can pass the XF86Config to use on the > command line to the server. If you use something like xdm, you Well, you learn something new every day :-} but I don't see how -- i've searched for "onfig" in the man pages for startx, xinit, X, and Xserver, and found nothing that suggests a command-line option to choose the config file. - Paul Winkler http://www.slinkp.com "Welcome to Muppet Labs, where the future is made - today!"

21 years, 5 months

[linux-audio-user] latency test problem

by anton

Hi, I want to measure the latency of my linux box before installing the low lat kernel. I found the latencytest0.42-png program. When compiling I get some warnings (see below) anton@stereocilia:~/latencytest0.42-png> make gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c latencytest.c latencytest.c: In function `main': latencytest.c:156: warning: passing arg 2 of `signal' from incompatible pointer type latencytest.c:157: warning: passing arg 2 of `signal' from incompatible pointer type gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c gfx.c gcc -o latencytest latencytest.o gfx.o -lm -lgd -lpng gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c rtc_latencytest.c rtc_latencytest.c: In function `main': rtc_latencytest.c:142: warning: passing arg 2 of `signal' from incompatible pointer type rtc_latencytest.c:143: warning: passing arg 2 of `signal' from incompatible pointer type gcc -o rtc_latencytest rtc_latencytest.o gfx.o -lm -lgd -lpng Running ./do_tests gives me lots of errors: anton@stereocilia:~/latencytest0.42-png> ./do_tests mlockall() failed, exiting. mlock: Operation not permitted x11perf - X11 performance program, version 1.5 The XFree86 Project, Inc server version 40200000 on :0.0 from stereocilia Sun Nov 10 18:03:41 2002 Sync time adjustment is 0.1274 msecs. 20000 reps @ 0.4161 msec ( 2400.0/sec): Scroll 500x500 pixels [more output here] 1200 reps @ 5.9190 msec ( 169.0/sec): ShmPutImage 500x500 square [more output here] mv: cannot stat `out.png': No such file or directory mlockall() failed, exiting. mlock: Operation not permitted mv: cannot stat `out.png': No such file or directory mlockall() failed, exiting. mlock: Operation not permitted head: /dev/zero: invalid number of bytes mv: cannot stat `out.png': No such file or directory -rw-r--r-- 1 anton users 0 2002-11-10 18:05 tmpfile mlockall() failed, exiting. mlock: Operation not permitted mv: cannot stat `out.png': No such file or directory -rw-r--r-- 1 anton users 0 2002-11-10 18:05 tmpfile -rw-r--r-- 1 anton users 0 2002-11-10 18:05 tmpfile2 mlockall() failed, exiting. mlock: Operation not permitted -rw-r--r-- 1 anton users 0 2002-11-10 18:05 tmpfile -rw-r--r-- 1 anton users 0 2002-11-10 18:05 tmpfile2 mv: cannot stat `out.png': No such file or directory I am using Suse 8.1 with the default 2.4.19 kernel. It is probably something very stupid but I cannot figure out what. Any help would be appreciated. Regards Anton

21 years, 5 months

[linux-audio-user] [ANN] JACK Rack 1.0

by Bob Ham

Hi all, I just uploaded the first version of JACK Rack, a stereo LADSPA effects "rack" for JACK and GTK+ 2. Tarball is here: http://pkl.net/~node/software/jack-rack-1.0.tar.gz (96k) screenshot is here: http://pkl.net/~node/images/jack-rack-shot.png Enjoy :) Bob

21 years, 5 months

[linux-audio-user] rme96 + 8 ADAT channels eith ecasound ?

by Olaf Titel

Hi dear mailing list ? I have got one question. I'm using ALSA + digi96/8 PAD with an external ADAT (Korg 880D/A) I can play sounds on the device hw:0 (analog). I can also play sounds with the device hw:0,1 (ADAT) with ecasound and aplay and other software.But in the momment all the sounds are send to the first two ADAT-channels Is it possible to use all 8 channels with ecasound or jack ? Have I to send an 8 channel interleaved file or sterro files how? How does it work. Or have I to set up a special multichannel configuration in the .asoundrc file. Thank you. Olaf Titel -- olaf titel nassauische str.54 10717 berlin --

21 years, 5 months

RE: [linux-audio-user] Vsound is no more

by Joachim Backhaus

Hello, I found the old start page of vsound in the cache of google: http://www.google.de/search?q=cache:xGXl6EquXBwC:www.zip.com.au/~erikd/vsoun d/+%2Bvsound&hl=de&ie=UTF-8 If this will be deleted: I have made a local copy with mozilla which I can send to you if you are interested in it. Regards, Joachim

21 years, 5 months

[linux-audio-user] Outboard equipment

by Anahata

Until now, I have been using a MD 4 track for recording and my invovement with Lunux audio has been at stage of mastering the stereo mix and CD burning. However I'm beginning to appreciate the editing and multi track power of even a relatively simple package like audacity and considering using the PC and hard disk for more audio work. One of the sticking points is that I have an investment in some nice outboard gear - an FMR compressor and Lexicom MPX-200 reverb unit, and a mixer with swept mid EQ. What are my options for either (a) hooking the outboards to the PC (soundcard with lots ins and outs, possible latency issues) (b) Getting good EQ, reverb and compression all in software? (free software of course) I currently have a M-Audio DIO 2448, with 2 channel SPD/IF I/O System is a Duron 850, 384Mb, Debian 3.0 with 2.4.18 kernel -- Anahata anahata(a)treewind.co.uk -+- http://www.treewind.co.uk Home: 01638 720444 Mob: 07976 263827

21 years, 5 months

[linux-audio-user] Re: [Alsa-devel] usb audio sound quality

by Patrick Shirkey

Patrick Shirkey wrote: > I'm getting a lot of wierd sound quality bugs while using JACK. It seems > like the driver is storing the crappyness somewhere and each time I > access it the quality gets worse. Is it possible that the driver could > allow the data to linger and make things unstable? > > I have been doing some testing today with various softsynths and my mem > is getting pretty full. Turning off jack just freed up 10MB but still > it's at > > Mem: 386484K total, 336212K used, 50272K free, 41304K buffers > > The machine has been up for 7 hours. Is that reasonable? > > This is all done with tuned disks, lowlat and root access. Yesterday I was having this problem. I also tested the sound quality of native alsa vs jack by using two alsaplayers one connected to alsa and one connected to jack. While doing that I found that the output quality was exactly the same so I assumed that it was the alsadriver that was at fault. However After letting the machine and device cooldown while I slept and testing with native alsa today the sound quality is crystal clear. When I test through jack the quality is degraded. I assume that it is the demands that jack places on the system that is causing the quality to degrade. I have just gone down from 9 -> 6 screens in my virtual desktop and that seems to have gone a long way towards cleaning the sound. Any ideas on how I can tune x to give me those screens back? I currently use a geforce2 with nvidia drivers. I'm holding out on getting a new video card until the price of the new ATI has dropped. Does anyone know how the support for that card is going? -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.djcj.org - The Linux Audio Users guide ======================================== Being on stage with the band in front of crowds shouting, "Get off! No! We want normal music!", I think that was more like acting than anything I've ever done. Goldie, 8 Nov, 2002 The Scotsman

21 years, 5 months

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Linux-audio-user