Linux-audio-user February 2004

linux-audio-user@lists.linuxaudio.org

147 participants
192 discussions

by Chris Pickett

Hi, I've been wondering: what is it like processing audio offline under Linux? Is this something that is widely supported? I did a bunch of google searches using the term "offline" but couldn't find anything really useful. My computer is fairly weak (800 MHz laptop, no DSP card). Currently, if I want to process a file (apply effects, change the sample rate, apply dithering, mix it with another file, etc. etc.), I get the best results / greatest efficiency if I do disk bounces that don't require real-time processing. Steinberg seem to be very proud that they now support this, which suggests that it isn't the norm, at least under Windows (I don't think Logic ever supported it under Windows). I'm also curious if there's general support to process MIDI offline as well, but that's not so critical to me, since the computations are far less intense. Cheers, Chris

20 years, 9 months

[linux-audio-user] ANN: Specimen Version 0.2.0 Released

by Pete Bessman

The second major of version of Specimen has been released today. The main change is the new sample editor that allows you to fine tune the way your samples are being played. I've also created some documentation, and added ping-pong and reverse play modes. Download it from www.gazuga.net, and read up on it at www.gazuga.net/guide. [pb]

20 years, 9 months

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

by Matthew Allen

Actually a new version was released on Sunday. Where did you hear about the discontinuation? 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 > > I like XFE a lot also. I guess it's not being developed anymore? Pity as > it fills a nice void I think. _________________________________________________ Scanned on 19 Feb 2004 00:05:16 Scanning by http://erado.com

20 years, 9 months

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

by Matthew Allen

Rox-filier's (http://rox.sourceforge.net/phpwiki/index.php/ROX-Filer )Auto complete from the command line is pretty cool (I use it as an image thumbnail viewer, its not so good as a full blow file manager as it doesn't support multiple views). I don't usually use the command input on xfe so I'm not going to be much help with that one. m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Paul Winkler > Sent: Wednesday, February 18, 2004 4:12 PM > > While we're on the subject... do any of the graphical file managers > do tab completion or something like it? I like the look of file > managers but i don't like point-click-point-click-scroll-click-point-etc. > _________________________________________________ Scanned on 19 Feb 2004 00:28:15 Scanning by http://erado.com

20 years, 9 months

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

by Matthew Allen

That's just the main binary for fvwm. If you include all of the modules I think it would put it up past icewm and maybe even past fluxbox. My linux box is at home, but I'll check tonight. m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Frank Barknecht > Subject: Re: [linux-audio-user] suggested Window Manager good for audio? > > Judging by file size, fluxbox is rather bloated, but blackbox comes > out smallest - not counting the anorectic window managers like swm or > failsafewm (ouch!) from www.small-window-manager.de: > > -rwxrwxr-x 1 freak freak 7404 Feb 18 23:58 failsafewm > -rwxr-xr-x 1 root root 257472 Apr 14 2003 /usr/bin/blackbox > -rwxr-xr-x 1 root root 359160 Mar 23 2003 /usr/bin/fvwm2 > -rwxr-xr-x 1 root root 406668 Mar 13 2003 /usr/bin/icewm > -rwxr-xr-x 1 root root 625828 Jan 27 2003 /usr/bin/fluxbox _________________________________________________ Scanned on 18 Feb 2004 23:30:52 Scanning by http://erado.com

20 years, 9 months

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

by Kent, Gary

Many thanks for all of these suggestions, and yes, Robin, if you would be willing to share any config contributions I would be appreciative for it. It's been awhile since I used WM's but maybe now's the time. App's seem to work ok on it ok, and if I could configure a menu to get at them quickly, then I would think I had found a solution. Not to be a bandwidth hog here, but any comments on whether how much cpu savings a person is going to see that can be given to audio? No email at night so might have to comment back on any offerings tomorrow. But thanks to all for sharing this info with me. Thanks again, gk

20 years, 9 months

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

by Matthew Allen

Make sure and not do what I was doing for a while, and confuse XFce (which is a desktop like KDE and Gnome) and Xfe, which is a very very nice X file manager. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Frank Barknecht > Sent: Wednesday, February 18, 2004 3:25 PM > Florian Schmidt hat gesagt: // Florian Schmidt wrote: > > > try xfce4. It's nice, not too resourec hungry, and doesn't seem to > > interfere by having sound daemons, etc.. Actually it brings its own > > panel, taskbar, etc, with it.. > > > > The file manager isn't as great, but i am a shell monkey anyway :) > > Me too, but recently I discovered the Xfe filemanager. Nice, fast, not _________________________________________________ Scanned on 18 Feb 2004 23:34:34 Scanning by http://erado.com

20 years, 9 months

[linux-audio-user] yamaha rp-u200 usb-audio and jack

by jaap

Hi, Ihave a yamaha rp-u200 usb "soundcard". Nice,at the same time it is my hifi and surround-ampli and my radio. The capture-channel doesn'tb seem to work (normal?) With alsa,one of the two playback-channels is working. Not so bad.... But jack doesn't want to start with this device. Is it that "real24bit"-problem for usb-cards? Shouldn't it work? Anyone knows about this? When I start jack for this device I get the following output: jackstart -Rv -d alsa -d hw:0,1 -r 44100 back from read, ret = 1 errno == Success getting driver descriptor from /usr/lib/jack/jack_dummy.so getting driver descriptor from /usr/lib/jack/jack_alsa.so 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 registered builtin port type 32 bit float mono audio capabilities: =i cap_setpcap,cap_ipc_lock,cap_sys_nice,cap_sys_resource+ep loading driver .. new client: alsa_pcm, id = 1 type 1 @ 0x8057d18 fd = -1 apparent rate = 44100 creating alsa driver ... hw:0,1|hw:0,1|1024|2|44100|0|0|nomon|swmeter|rt|32bit control device hw:0 configuring for 44100Hz, period = 1024 frames, buffer = 2 periods Couldn't open hw:0,1 for 32bit samples trying 24bit instead Couldn't open hw:0,1 for 32bit samples trying 24bit instead Couldn't open hw:0,1 for 24bit samples trying 16bit instead Sorry. The audio interface "hw:0,1" doesn't support any of the hardware sample formats that JACK's alsa-driver can use. ALSA: cannot configure playback channel cannot load driver module alsa Thanks for help or comment. Jaap van Geffen

20 years, 9 months

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

by Matthew Allen

What features are you looking for? Basically if you tell us what you want your WM to do I think we could probably set you on the right path :) m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Kent, Gary > Subject: [linux-audio-user] suggested Window Manager good for audio? > > Many thanks for all of these suggestions, and yes, Robin, if you would > be willing to share any config contributions I would be appreciative for > it. It's been awhile since I used WM's but maybe now's the time. App's > seem to work ok on it ok, and if I could configure a menu to get at them > quickly, then I would think I had found a solution. _________________________________________________ Scanned on 18 Feb 2004 22:54:56 Scanning by http://erado.com

20 years, 9 months

[linux-audio-user] Jackstart - realtime capabilities issues

by RachelAPP

I knew i'd come back with more questions sooner or later...! OK, here's my setup: Debian Kernel 2.4.22 Terratec DMX6 Fire (working properly with Alsa driver now - at least, i can record with Audacity) Evolution MC225C Midi controller (plugged into my Terratec Midi input) My computer is a AMD 2400XP, 512 MB RAM I have installed Muse as recommended by somebody and also Jack and when i typed "jackstart --help" in the shell i got this (running as root) jackstart: cannot get realtime capabilities, current capabilities are: =ep cap_setpcap-ep probably running under a kernel with capabilities disabled, a suitable kernel would have printed something like "=eip" I haven't installed Linux myself on my computer - a friend did it and explained to me what he was doing while he was doing it but obviously, i might not know everything about my setup. We installed it starting with Knoppix then upgraded it to Debian. We tried to install the Kernel 2.6 afterwards but it doesn't boot, probably due to a video card error because the screen actually goes blank even though i can hear the hard drive is working. So i have a couple of questions: 1) is there a quick fix for my jackstart problem with my current kernel? 2) should i upgrade to kernel 2.6? Cheers Rachel -- APP (HLMHB) - electronica indie pop www.appband.com fpr mp3s & more info

20 years, 9 months

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Linux-audio-user February 2004