Linux-audio-user September 2006

linux-audio-user@lists.linuxaudio.org

165 participants
155 discussions

by Steven Cabrera

Hi, I'm new to Linux and I need some help getting my sound card working. I have a mac g5 dual 2.3 gHz a M-Audio Delta 44 sound card and Unitor8 midi interface. I have read many articles about alsa but I just can't seem to get the card working. Any help would be appreciated. In fact, I'll sing at your next wedding if you help me get this working :-) Thanks, Steve

18 years, 7 months

[linux-audio-user] FreeBob with Roland FA-101 on Ubuntu

by Carlo Capocasa

Hi, I sort of got my Edirol FA-101 running on Ubuntu 6.06 with a custom kernel as discribed on UbuntuStudio.com. I compiled libraw1394, libiieclibraw1394, libiiec61883, libfreebob and jack from subversion. Now I can access my card; however, on starting jack with the -R switch, the system hangs. Also, in QJackCtl, there is no entry for the freebob backed, which forces me to do connections from the console. Additionally, I need to sudo jack for it to recognize the device. Help greatly appreciated Carlo Capocasa

18 years, 7 months

[linux-audio-user] Linux Noobie

by Steven Cabrera

18 years, 7 months

[linux-audio-user] Installing LADSPA on modern systems

by Drucer Ninetynine

Hi, I noticed that the latest LADSPA release is getting quite old. It's from year 2002 and thus it is not probably a trivial task to compile it on new systems. Is it safe to install LADSPA SDK by copying "ladspa.h" file to /usr/include and then copying the precompiled plugins file "cmt.so" to /usr/lib/ladspa and running "ldconfig"? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 7 months

[linux-audio-user] Sample rates > 44100 with Edirol UA-25

by Cesare Marilungo

After more than a year of using this device, I've found that I cannot run it at 48KHz, or 96KHz. cat /proc/asound/card1/stream0 return: EDIROL UA-25 at usb-0000:00:10.0-1, full speed : USB Audio Playback: Status: Stop Interface 0 Altset 1 Format: S24_3LE Channels: 2 Endpoint: 1 OUT (ADAPTIVE) Rates: 44100 - 44100 (continuous) Capture: Status: Stop Interface 1 Altset 1 Format: S24_3LE Channels: 2 Endpoint: 2 IN (ASYNC) Rates: 44100 - 44100 (continuous) Doesn't snd-usb-audio support higher sample rates for this device? Reading the source code I guess it should, but it isn't working here. I know other people on this list use it. Any clue? Ciao, c. -- www.cesaremarilungo.com On the Internet, no one knows you're using Windows NT -- Submitted by Ramiro Estrugo, restrugo(a)fateware.com

18 years, 7 months

[linux-audio-user] Midi to OSC routing

by Stefano Barbi

Dear all, I was looking for an application able to filter and route MIDI messages, such as cc messages from a MIDI controller, to the OSC controls of an instrument. Obviously, such application should be able to store and retrieve mappings between MIDI and OSC. Do you know if anything of that kind exists? Stefano

18 years, 7 months

[linux-audio-user] M-Audio omnistudio USb jackd issues

by Chris Abbott

I'm not sure what jack's problem is, but it returns this no matter what I use on my omnistudio. ~$ jackd -dalsa -dhw:1 -r48000 -p1024 -n2 -i4 -o2 jackd 0.101.1 Copyright 2001-2005 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 .. apparent rate = 48000 creating alsa driver ... hw:1|hw:1|1024|2|48000|4|4|nomon|swmeter|-|32bit control device hw:1 configuring for 48000Hz, period = 1024 frames, buffer = 2 periods Note: audio device hw:1 doesn't support a 32bit sample format so JACK will try a 24bit format instead Note: audio device hw:1 doesn't support a 24bit sample format so JACK will try a 16bit format instead Sorry. The audio interface "hw:1" doesn't support any of the hardware sample formats that JACK's alsa-driver can use. ALSA: cannot configure capture channel cannot load driver module alsa no message buffer overruns I know the device works. because I can get beep and other media players to talk to hw:1,0 and hw:1,1. Both of those are the same device. For some reason Alsa splits it into two 2x2 units, instead of a single 4x4 or 4x2. And yes it does support 24-bit formats, but not 32-bit. Is this something in the alsa-jack driver? I'm running Ubuntu 6.06 LTS for ppc.

18 years, 7 months

[linux-audio-user] More ramblings :)

by Folderol

Well, for the past week I should have been on holiday in Scotland, but after two days and some miserable weather a heavy cold sent me scurrying home to feel sorry for myself. Well, of course with a week now of 'uncommitted' time it was obvious what I would do, wasn't it :) When I'm more or less satisfied with a piece of music, I first check it on a pair of medium quality headphones for balance, then on my main Hi-Fi which is quite a tasty unit, and finally on the car stereo, to see what it sounds like with a truly mangled frequency response. I was so excited about my latest piece - Ripples In A Pond - that I was in the car at 1am checking it out. It's OK, I think my neighbours already know I'm crazy. The second part of this tune - Echo From The Lake - was very much an after thought, but now I think it's the best part of it! I also finally have Footsteps put together to my satisfaction. I don't know quite how I did it but the 3rd section as a real room filling quality. The brisk march at the end nearly didn't happen. The melody by itself seemed a bit thin and weedy. There are several other new tunes and a couple of updated ones - I told you I'd been busy :) Please have a look and tell me what you think. http://www.folderol.ukfsn.org/updates.shtml -- Will J G

18 years, 7 months

[linux-audio-user] Plugging an electric instrument

by lanas

Folks, I just got an accoutic bass guitar that also got a preamp and a 1/4 jack. Obviously a 1/4 cable won't do as input for the M-Audio 1010LT. But is it only a matter of adapting the physical connector or should the output from the guitar's preamp be routed in some box (?) before it reaches the M-Audio card input ? Al

18 years, 7 months

[linux-audio-user] ZynAddSubFX sound lags

by juuso.alasuutari＠tamperelainen.org

I'm driving ZynAddSubFX from MusE with ALSA MIDI & JACK on a 1.7 GHz Pentium M laptop and a 2.6.17.11 kernel with the realtime-lsm module. The sound lags behind ever so slightly; I have to move the notes backward one 32T to be more or less on the mark. And even then it sounds like there's a certain randomness to when each note is played. Is ZynAddSubFX such a monolith that this isn't avoidable without a more powerful computer? Or should I try enabling the (supposedly broken) JACK_RT audio option during compile? Anything else I could do? If I've no hope of getting ZynAddSubFX to not lag, can someone recommend a good additive synthesis alternative? Preferably something not modular; I want to twist knobs to create sounds, not to build a new synth from scratch. Thanks, Juuso ---------------------------------------------------------------- This mail sent through L-secure: http://www.l-secure.net/

18 years, 7 months

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Linux-audio-user September 2006