Linux-audio-user January 2011

linux-audio-user@lists.linuxaudio.org

158 participants
141 discussions

by Raffaele Morelli

Hi, I am going to buy a master keyboardand I am wondering what's the best choice to avoid compatibility issues (if any...) according to experienced midi users/musicians on this list. Regards Raffaele -- *L'unica speranza di catarsi, ammesso che ne esista una, resta affidata all'istinto di ribellione, alla rivolta non isterilita in progetti, alla protesta violenta e viscerale.*

13 years, 11 months

arch, jack and firewire

by Atte André Jensen

Hi I'm trying out arch (again), and I'm having trouble with jack and firewire. I installed jack2, libffado and added myself to the audio group. Here's limits.conf: [root@vestbjerg ~]# grep -v '#' /etc/security/limits.conf * - rtprio 0 * - nice 0 @audio - rtprio 65 @audio - memlock 1000000 And here's the error message from qjackctl: 09:44:59.455 Patchbay deactivated. 09:44:59.491 Statistics reset. 09:44:59.494 ALSA connection change. Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started 09:44:59.508 ALSA connection graph change. 09:45:00.994 JACK is starting... 09:45:00.995 /usr/bin/jackd -dfirewire -r48000 -p128 -n3 Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started no message buffer overruns could not open driver .so '/usr/lib/jack/jack_netone.so': libcelt0.so.0: cannot open shared object file: No such file or directory no message buffer overruns could not open component .so '/usr/lib/jack/jack_netone.so': libcelt0.so.0: cannot open shared object file: No such file or directory jackdmp 1.9.6 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2010 Grame. jackdmp 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 server starting in realtime mode with priority 10 09:45:01.046 JACK was started with PID=10388. libffado 2.0.1 built Oct 24 2010 22:46:48 libiec61883 warning: iec61883_cmp_create_p2p_output: Failed to set the oPCR[0] plug for node 1. firewire ERR: Could not start streaming threads Cannot start driver JackServer::Start() failed with -1 no message buffer overruns Failed to start server 09:45:02.514 JACK was stopped with exit status=255. 09:45:03.123 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info. Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started Any idea what I'm missing? -- Atte http://atte.dk http://modlys.dk

13 years, 11 months

Ardour 3 and reusing sessions

by Hakan Koseoglu

Hi all, In Ardour2, I used to copy my existing session into a new directory, hack the ardour files to change the directory names and then drop in the recordings to make the podcast releases a lot easier. In Ardour3 when I do the same trick, the session looks OK but the audio content is missing. The regions are visible but with no waveform (and audio when I hit the play button). I hacked the ardour file & the instant.xml file as well as the interchange contents. All that changes is the episode number (i.e., epXX to epXY so a quick search & replace used to work in Ardour 2). Template only saves the tracks etc., not the audio files. I already have the intro & outro etc. with automation. All I want is the middle bit of the podcast replaced with the latest version. I don't want to reuse the existing session since I usually do a number of recordings and then prepare them, put it into the can and wait until it's time to upload. I might have to go back and redo something quickly so I'd rather have a pile of sessions sitting on disk. How does this supposed to work? :-) Cheers, Hakan

13 years, 11 months

LV2, DSSI and the future of plugins

by allcoms

Hi list, I suppose I could've just addressed this to drobilla and got most of my questions answered but it concerns us all really as even if A3 and qtractor were to achieve feature parity with Cubase and buds tomorrow (obviously I'm stretching things a bit there) we still wouldn't see vast droves switching to Linux DAWs for a few reasons such as hardware support, people liking what they know etc. but most importantly the dearth of quality native plugins available for Linux seems to be a primary showstopper for most. DSSI has a few things coded for it but not much and its still very early days for LV2 so the open plugin format of the future is still anyones game and it may not necessarily be either of those that succeeds and gets widely used of course. I think a couple of VSTs have been ported over to LV2 but I'm not aware of any that have been ported to DSSI and I think that the ease in doing so is quite an important factor in the success of any such format, if not the be-all and end-all. If anyone here has any experience with coding and/or porting VSTis - what is currently lacking from LV2 or DSSI that could potentially cause problems for someone wanting to port their big beefy synth or snazzy FX from VSTi to LV2 or DSSI? I already know about the incomplete persist LV2 extension but I'm pretty sure that won't be the only thing needing work. A very important factor for such a format would definitely be that the major hosts (commercial, foss or otherwise) for all major platforms would be able to easily implement support for it and that plugins would be easy to port between the different platforms. I'm not aware of any DAWs for Windows that support LV2 or DSSI yet but I could be wrong? There's nothing stopping a closed source, commecial app vendor adding support for either format is there? Another factor I see as increasingly important is that the plugin format should be able to take advantage of OpenCL to take advantage of the superior processing power of todays GPUs. Quite how we'd convince Steinberg and co. we need a replacement for VSTi and get them to support an open standard though is anyones guess :/

13 years, 11 months

vst plugins and ms visual c++ with dssi-vst

by Robin Paulson

i have a vst plugin i would like to use within rosegarden. i have dssi-vst and wine installed, and when i run vsthost <name of plugin>, i get an error about ms vc++. i installed this (version 9), but am still getting errors about the vst .dll not being found, and the ms dll not being found. has anyone had any success with this? cheers -- robin http://tangleball.org.nz/ - Auckland's Creative Space http://bumblepuppy.org/blog/

13 years, 11 months

Re: [LAU] Master keyboard

by Kim Cascone

I just bought an M-Audio Axiom25 keyboard and it was plug 'n play - I didn't have to install anything -- *my Linux audio perf config:* Dell Studio 1537 Core2 Duo @2.0GHz | 3G-RAM Ubuntu 10.10 kernel 2.6.36-3.dmz.2-liquorix-686 #1 ZEN SMP PREEMPT jackd version jackdmp 1.9.6 Ardour 2.8.11 Pd version 0.42.5-extended M-Audio Axiom 25 midi kbd USB iMic audio interface Korg nanoKontrol cpufreq-set - both cpu's are set to 2.0GHz and userspace

13 years, 11 months

q: gigedit

by Kim Cascone

after much head-scratching I finally figured out how to add layers (aka 'dimensions') to a sample instrument in LinuxSampler/Gigedit q: I can drag the velocity window for each sample in a 'stack' but I can't tell (from 0-127) where the breakpoints occur for velocity - anyone know the secret handshake?

13 years, 11 months

Re: [LAU] (LV2) plugins and accessibility]

by S. Massy

13 years, 11 months

(LV2) plugins and accessibility

by S. Massy

Evening, all, All this talk about LV2 has got me wondering. Is there any mechanism planned to make LV2 plugins accessible to the CLI or via some kind of API? Speaking as a blind CLI audio apps user, I find the move to ever increasingly integrated GUIs (as opposed to, say, LADSPA) scary for the prospect of accessibility, or even scriptability, for that matter. What are your thoughts on the subject? Cheers, S.M.

13 years, 11 months

Fortepiano giga files from pianoteq

by Nigel Henry

I want to buy a fortepiano sample file from pianoteq while the sales on. I've got linuxsampler from cvs built, but am unsure which of the 2 giga formats for the fortepiano might be compatible with linuxsampler. The 2 available are for: gigastudio3, and gigasampler2. Thanks for any suggestions. Nigel.

13 years, 11 months

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Linux-audio-user January 2011