Linux-audio-user February 2004

linux-audio-user@lists.linuxaudio.org

147 participants
192 discussions

[linux-audio-user] Help needed to start jackd with a vxpocket

by digger vermont

Hello All, I haven't been able to get jack to start with a vxpocket V2. I'm using the commandline "jackd -d alsa -d hw:1" and getting the error: jackd 0.94.0 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 loading driver .. creating alsa driver ... hw:1|hw:1|1024|2|48000|0|0|nomon|swmeter|rt|32bit control device hw:1 configuring for 48000Hz, period = 1024 frames, buffer = 2 periods Couldn't open hw:1 for 32bit samples trying 24bit instead Couldn't open hw:1 for 24bit samples trying 16bit 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 The alsa version is 1.0.2c on a powerbook running debian testing /unstable with 2.4.24 kernel. I got the impression from some others on this list that they have it working. What's the trick? Thanks for any help, digger

20 years, 9 months

[linux-audio-user] yamaha rp-u200 and jack: bad sound

by jaap

Thanks to Clemens,I have 4 channel output from my rp-u200 usb-audio "card" The problem now is bad sound,that is,lots of kind of pops or whatever it's named.Also there is sync problem,sometimes the sound is kind of slowing down. I played back sound with different applications:alsaplayer, ecasound,fluidsynth,terminatorX.Always the same result: When I run jack the sound is bad,but when do the same thing without jack running,direct by alsa there are no obvious problems(except having only 2 channels),so it can't be a hardware problem. Any ideas about the origins of this disastrous sound? I have jack 0.94.0,alsa-driver 1.0.2c,kernel 2.4.20-gentoo-r8. Thanks for help, Jaap van Geffen

20 years, 9 months

[linux-audio-user] Linux midi players that don't require download of large patch or sample files??

by Ruth A. Kramer

Sorry, this is probably a very newbie question, and I haven't lurked very long or searched the archives (partly because I don't have a good idea of keywords to search for). I've used Linux for a few years, but sound isn't normally a concern. My son is trying to make the switch from Windows to Linux (and has, for some things) and now wants to play midi files. His impression is that, on Windows, sound players use synthesizer's (and "patches"/"samples") built into the sound card while on Linux those patches/samples (??) have to be downloaded and he talks about 40 MB worth of files in some cases. Maybe the difference is that we also changed computers, and his current computer has an on-board SiS 7018 sound thingie while his previous computer (IIRC) had a separate sound card, possibly with something like the Yamaha OPL xxx on it. Any light anybody can shed on this would be appreciated. (I did skim through a Linux Sound HOWTO (that was actually a little bit more like an FAQ), and saw some hints, but I really don't know how to interpret them.) Keywords to use to search the archives or Google, or pointers to simple documentation that focuses on this subject could also be helpful. No doubt what ever I learn will end up on a WikiLearn page (http://twiki.org/cgi-bin/view/Wikilearn/WebChanges). thanks, Randy Kramer

20 years, 9 months

[linux-audio-user] [ANN] TAP-plugins 0.4.0

by Tom Szilagyi

Hi all, TAP-plugins 0.4.0 is just released. Check it out at: http://tap-plugins.sf.net New plugins: * TAP Pitch Shifter Gives you the opportunity to change the pitch of individual tracks or full mixes, in the range of plus/minus one octave. Audio length (tempo) is not affected by this plugin, since audio is completely resampled. * TAP Rotary Speaker Simulates the sound of rotating speakers. Two pairs of rotating speakers are simulated, each pair fixed on a vertical axis, with their horns spreading the sound in opposite directions. * TAP Vibrato Modulates the pitch of its input signal with a low-frequency sinusoidal signal. It is useful for guitar and synth tracks, and it can also come handy if a strange effect is needed. Bugfixes: * Fixed crashing bug in TAP Reverberator (this bug appeared with hosts that call activate() before connect_port()). * Fixed lock-up bug in TAP DeEsser (the bug appeared when an input sample had +/- INF value). * Various smaller bugfixes (almost all plugins locked up when control input values of +/- INF were appiled). A recommended upgrade ;-) Enjoy, Tom

20 years, 9 months

[linux-audio-user] suggested Window Manager good for audio?

by Kent, Gary

Hi: Hope this isn't off topic for this list. Would someone be willing to suggest a Window Manager that would work well with a Linux audio box using the Planet CCRMA images? I have used the Gnome and KDE environments and just have come to feel that they are too bloated for what I'm trying to do. Does using a Window Manager instead of a full-blown desktop such as Gnome mean that I can have more audio processing power since I am giving up graphics overhead? I am trying out fvwm and it is pretty sparse, but was wondering what others might suggest as best for audio? Many thanks, gk

20 years, 9 months

[linux-audio-user] hdsp & FSC Amilo D 1840W

by Tim Blechmann

hi all, sorry for cross-posting to multiple lists, but is there anyone, who has a hdsp working on a fsc amilo D (preferable 1840W)? thanks a lot ... Tim mailto:TimBlechmann@gmx.de ICQ: 96771783 -- The only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn, like fabulous yellow roman candles exploding like spiders across the stars and in the middle you see the blue centerlight pop and everybody goes "Awww!" Jack Kerouac

20 years, 9 months

[linux-audio-user] capture problems

by Joey Reid

I had to send my Audiophile back because it did not come with the breakout cable, so while I am waiting for the new card to come I figured I would experiment with the onboard sound (nforce2) and test the waters a little. But I am having a problem capturing audio from it. If I connect an audio source to the line-in, I can hear it playing through my system. Then I start qjackctl and get jack going. Then in ardour, I create a track and connect it to the alsa_pcm capture, but there doesn't appear to be any signal coming in. I have recorded from other jack clients (Hydrogen) so I think I have that part figured out, but the capture is not working. The whole time, I can still hear the audio source through my system. Should I be hearing this? If I look at the jack connections, there is no connection between the alsa_pcm capture clients and the alsa_pcm playback clients. Sorry for the noob questions, but I have never tried to capture audio before. I promise once I get up to speed I will be on the other end (helping out ;-)

20 years, 9 months

RE: [linux-audio-user] LADCCA (was: Some music made with Linux)

by Matthew Allen

Ok yeah I guess my semantics were wrong :)! Is there a way to make other programs play nice? I often day dream about writing a small (actually when I stop daydreaming and start writing it down it becomes rather large) python script that checks against a list of audio programs to see which are running and uses the new functionality of qjackctl to restart and reconnect them. (actually I don't know if you can query qjackctl for its current setup, don't have the man pages here at work). Ahh day dreams m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Mark Knecht > Sent: Friday, February 20, 2004 11:31 AM > > I think it's the other way around, isn't it? The apps need to be > rewritten to support LADCCA? Until the apps have LADCCA support I think > it jsut doesn't work with them. _________________________________________________ Scanned on 20 Feb 2004 20:01:26 Scanning by http://erado.com

20 years, 9 months

[linux-audio-user] LADCCA (was: Some music made with Linux)

by Matthew Allen

LADCCA is a pretty cool idea. It doesn't seem like it supports that many apps though? Am I missing something or can you use it with more that just jack rack, Muse, and the alsa patchbay? m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Steve Harris > > Yeah, LADCCA - I was playing with it last night. It does a good job, but > each application needs a (little bit) of support. > > - Steve > > > _________________________________________________ > Scanned on 20 Feb 2004 09:25:53 > Scanning by http://erado.com _________________________________________________ Scanned on 20 Feb 2004 19:16:19 Scanning by http://erado.com

20 years, 9 months

[linux-audio-user] vxpocket causes cardmgr segfault on powerbook

by digger vermont

Hello All, I had hopes that I would bring home the vxpocket plug it in and start playing around. Nope. Well, at least not with the guitar. I have a Powerbook G4. 2.4 and 2.6 kernels, Alsa 1.0.2c. With both kernels cardmgr segfaults when I insert the vxpocket. With the 2.6 kernel cardmgr will segfault at boot even without the card inserted but just by having alsa load the snd-vxpocket modules before card-services are started. Are there any tricks to setting it up? Seems like the problem spans several mailing-list so I thought I'd try here first. Thanks, digger

20 years, 9 months

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Linux-audio-user February 2004