Linux-audio-user

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8 participants
20708 discussions

[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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 months

[linux-audio-user] ZynAddSubFX 1.4.0 contains many improvements

by Nasca Paul

Hi. I released ZynAddSubFX 1.4.0 and contains many new features: - added instrument's own effect (effects that are loaded/saved with the instrument) - FreeMode Envelopes: all Envelopes can have any shape (not only ADSR) - Added instrument kits: It is possible to use more than one instruments into one part (used for layered synths or drum kits) - Amplitude envelopes can be linear or logarithmic - added interpolation on the Resonance user interface - user interface improvements and cleanups of it's code - initiated a mailing list to allow users to share patches for ZynAddSubFX. Please share your ZynAddSubFX patches; look at http://lists.sourceforge.net/mailman/listinfo/zynaddsubfx-user for more information about the mailing list. For those you don't know about it, ZynAddSubFX is a powerfull software synthesizer for Linux and Windows. It is a opensource software and is licensed under GNU GPL 2. The homepage is: http://zynaddsubfx.sourceforge.net/ Paul. __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com

22 years, 10 months

[linux-audio-user] ALSA device sharing?

by Mikhail Ramendik

Hello! Does alsa allow several programs to use one device, with soft mixing? I have switched to alsa drivers, recompiled fluidsynth for alsa, and tried to run it under KDE (in a Konsole su root). It failed: === ALSA lib pcm_hw.c:866:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy fluidsynth: error: The "default" audio device is used by another application Failed to create the audio driver === Now, I thought I could get rid of arts and let alsa handle softmixing, but... will it? Well, I can install JACK. But I'm not only doing music creation. I want to play MP3s via XMMS, watch videos with Xine, etc. Are there JACK output plugins, at least, for XMMS and Xine? -- Sincerely yours, Mikhail Ramendik

22 years, 10 months

[linux-audio-user] fluidsynth: strange warning

by Mikhail Ramendik

Hello! The problem with starting fluidsynth was indeed the result of a vesion difference between alsa-driver and alsa-lib. The alsa-driver in th ekernel proved to be 0.9.0rc6; I got the corresponding alsa-lib from the ALSA project site (still works only by IP for me), and compiled it from source; and now it loads. But, it shows a strange warning: === fluidsynth: warning: The sample rate is set to 44100, the synthesizer may be out of tune fluidsynth: warning: Requested a period size of 64, got 65 instead ** Using format s16, rw, interleaved === I don't really want the synthesizer to be out of tune. So I'd like to understand what's going on here. (This message does not appear is I run fluidsynth with -a oss) -- Sincerely yours, Mikhail Ramendik

22 years, 10 months

[linux-audio-user] fluidsynth and ladspa?

by Julien Patrick Claassen

Hello! I tried to find out how to use ladspa with fluidsynth, but I failed. I had it worked out to the point where I could at least give values for the data ports, although it is a nasty syntax. But I couldn't assign the audio ports. I didn't find out which value to assign to the ports. I tried simply using numbers, or things like "input1"... Does anyone know how to properly insert a ladspa effect from the fluidsynth-shell? Thanks in advance. Kindest regards Julien P.S.: Thanks for the one line hack, now the clicks are gone... Julien Patrick Claassen jclaassen(a)gmx.de julien(a)c-lab.de http://www.geocities.com/jjs_home SBS C-LAB Fuerstenallee 11 33102 Paderborn Phone: (+49) 5251 60 6060 Fax: (+49) 5251 60 6065 www.c-lab.de

22 years, 10 months

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Linux-audio-user