Linux-audio-user

linux-audio-user@lists.linuxaudio.org

2 participants
20632 discussions

[linux-audio-user] xinerama and alsa problems

by Arthur Moore

I'm using xinerama with two nvidia cards and I'm having a problem when trying to play sound. When I stretch an app (like audacity) over two screens I get all sorts of distortions. Actually whenever any sound app is on the second screen I have problems. Like a clicking. Anyway I'm using Debian unstable, with kernel 2.4.20 (no patches), Xfree86 4.2.1, and alsa 0.9.2. Anyone else seen this problem? Art

22 years, 2 months

[linux-audio-user] (no subject)

by alex dray

hey there does anyone know of drivers for the echo indigo (event laptop pcmcia card) under linux? thanks alex _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

22 years, 2 months

Re: [linux-audio-user] jackd fails to start: cannot create shm segment /jack-shm-registry (No such file or directory)

by Mark Knecht

> From: linux-audio-user-admin(a)music.columbia.edu > [mailto:linux-audio-user-admin@music.columbia.edu]On Behalf Of Antonis > Galanopoulos > Sent: Thursday, April 17, 2003 6:10 PM > To: linux-audio-user(a)music.columbia.edu > Cc: ico(a)fuse.net > Subject: Re: [linux-audio-user] jackd fails to start: cannot create shm > segment /jack-shm-registry (No such file or directory) > > > hi > On Thursday 17 April 2003 23:44, Ivica Bukvic wrote: > > key for /tmp/jack/shm/jack-shm-registry is 0x6a06252b > > cannot create shm segment /jack-shm-registry (No such file or directory) > > You need to mount shmfs for jack to work. My /etc/fstab entry is like that: > shmfs /dev/shm shm defaults 0 0 > To do that you need a kernel compiled with shm support. > --regards > anton > > Hi, I'm trying to build a 2.4.19 based kernel this evening, but I'm looking for shm support in make xconfig and seem to not find it. Where should I look? I would have expected File Systems... Maybe I'm blind... Thanks in advance, Mark

22 years, 2 months

[linux-audio-user] render soundfont performance of midi data to file?

by Will Benton

Hello, Is there some program that will render a soundfont performance of a standard midi file to WAV? Ideally, I'd also like it to provide some way to map MIDI channels to soundfont files/instruments, but a configuration file is great for that. thanks, wb -- Will Benton willb(a)acm.org

22 years, 2 months

[linux-audio-user] Re: midi control surfaces w/Linux?

by Dave Phillips

David Mays wrote: > I own your book "Linux Music and Sound" and have seen you mentioned > all over the net wherever Linux and Music collide so I thought you > might be a likely person to have an answer to this question. I am > looking for a MIDI control surface like the M-Audio SurfaceOne or the > Event EZ-Bus that has driver support to use with Linux pro-audio apps. > 4Front Tech says they do not support anything like that. Do you know > of anything that is available for this purpose? Hi David: I've sent this reply to the LAU list, hopefully one of the good fellows there can provide a solution. I'm not as "up" on the MIDI hardware scene as I used to be, sorry about that... Best regards, == Dave Phillips The Book Of Linux Music & Sound at http://www.nostarch.com/lms.htm The Linux Soundapps Site at http://linux-sound.org Currently listening to: Ravi Shankar, "Raga Bilashkani Todi"

22 years, 2 months

[linux-audio-user] external sound card

by Jan Stary

Hi, as my Acer Laptop only has a via ac97 chipset and one mono (mic) input and one stereo (headphone) output, I consider getting some additional hardware. I have two USB ports and a PCMCIA Card slot. Which one is better to use as a sound input/output? I mean sound quality and latency. I am running ecasound on top of alsa 0.9.2 and the 2.5.66 kernel. Any suggestions for a particular card/device/setup? Thanks a lot. Jan

22 years, 2 months

[linux-audio-user] Need help with Audio Software

by Abhishek SINHA

Hello all I am not a newbie to linux but certainly a newbie to music.I have just started to use linux to analyse some music. What i intend to do is to connect my machine to some speakers and i needed some software with which i can control the tempo of the song.I mean i can reduce the tempo of the beats make the song slow or increase the tempo of the beats and make the sound fast.. Do we have anything like this in open source. Any help will be greatly appreciated Thanks abhishek __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com

22 years, 2 months

[linux-audio-user] fluidsynth sound breaks on disk/cpu intense operation

by Mikhail Ramendik

Hello! Well, I finally have fluidsynth running on alsa. The 'not starting' problem was solved with getting the right version of alsa-lib; the 'no MIDI input' problem goes away by 'aconnect 64 128' when fluidsynth is already running. But, even though I run it as root, fluidsynth's sound still audibly breaks on a cpu/disk intensive operation - I tested it with starting OpenOffice and with running sxid. Is there any way to fix this? And should I try installing Timidity for such cases? I just want the synth to work in parallel with regular work. -- Sincerely yours, Mikhail Ramendik

22 years, 2 months

[linux-audio-user] fluidsynth fails with alsa

by Mikhail Ramendik

Hello! I have switched to alsa drivers. The sound card (ES1371) works OK. There is alsa-0.9rc2 in the kernel I use, but the distro, ASP Linux 7.3 (a Red Hat derivative) does not provide alsa-lib. I got alsa-lib, alsa-lib-devel and alsa-util from freshrpms.net (RPMs for RH 7.3 work on ASP 7.3); the version is, as I understand, 0.9rc7. I have compiled fluidsynth again starting with configure, and now it includes alsa libraries. But when I start it, as root, with no parameters, and even with X not running, it just hangs until Ctrl-C. It starts with -a oss, however. It says that uses midi via alsa-seq, but audio via oss. And it does not get any data from the MIDI keyboard (ran it with --verbose to check). Only when I used full OSS settings: fluidsynth -a oss -m oss -o midi.oss.device="/dev/midi00" did it work again. So, it's oss over alsa, not alsa. And yet alsa is there, for example, alsamixer works. (And, unlike the case without alsa, it does start an ALSA MIDI input, just gets no data). What should I do? Can it be the fault of version difference between alsa-driver in the kernel and alsa-lib/alsa-lib-devel? I gave it a try; I ununstalled alsa-lib and alsa-lib-devel and alsa-util, and tried to compile alsa-lib 0.9.0rc2 from the source on alsa-project.org. But it asked for the alsa-driver package. The kernel source (which includes alsa-driver) is installed, so I really don't know what to do next in this case. I'll try to investigate more - IT the version difference is likely to be at fault... Perhaps I just need to set some options I don't know about? -- Sincerely yours, Mikhail Ramendik

22 years, 2 months

[linux-audio-user] Realtime CD recording

by Ben Loftis

I would like to use my Linux box as a direct-to-CD recorder, for recording jam sessions. Does anybody know of a Linux app that can record an audio CD in real time? In other words, go straight from audio input to an audio CD? I think that some of the CD recording software can take input from stdin, but I don't know how the data should be formatted. Any ideas? -Ben

22 years, 2 months

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Linux-audio-user