Linux-audio-user April 2008

linux-audio-user@lists.linuxaudio.org

166 participants
157 discussions

by Tim Blechmann

hi all, i am experiencing problems with acquiring realtime scheduling capabilities with kernel 2.6.25. using old kernels (like 2.6.24.4-rt4-al2) my user can acquire realtime capabilities without any problems. when starting jackdmp, the pthread_setschedparam system call fails with EPERM. my user is in the group audio, my /etc/security/limits.conf file contains: @audio - rtprio 95 @audio - nice -19 any idea, what i might be doing wrong? thanks, tim -- tim(a)klingt.org http://tim.klingt.org 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

17 years, 1 month

bass line

by schoappied

Hi, I want to make a write a bass part in a note editor eg rosegarden, nted or mscore. 1. Is the bass player playing 2 octaves lower then the guitar player? 2. How do you put this on score? Just put the low notes with a normal key or do you change the key or something? 3. Which app can handle this well and how? (I know Rosegarden can do it, by ctrl down). Thanks in advance, Dirk

17 years, 1 month

PsychoSynth

by Ken Restivo

I don't recall seeing any mention on this list of PsychoSynth, so here it is: http://www.psychosynth.com/doku.php Kind of like a ReacTable without the projector, DV camera, and cubes of cardboard. -ken

17 years, 1 month

Re: [LAU] How to build or from where to get a Low-Latency-Kernel Source

by CC-Band

hi, is the rt-patch now already included in new stable kernel-version 2.6.25? thanx mike > Message: 13 > Date: Tue, 15 Apr 2008 08:32:41 +0200 > From: Atte Andr? Jensen <atte.jensen(a)gmail.com> > Subject: Re: [LAU] How to build or from where to get a > Low-Latency-Kernel Source > To: linux audio users <linux-audio-user(a)lists.linuxaudio.org> > Message-ID: <48044C09.9020809(a)gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > CC-Band wrote: > > i want to get a low-latency-kernel-source to mod it like i want. > > what do i need (which source / which patches / which version / which > > config) or where can i get a kernel-source where low-latency is > > implemented? > > Assuming you have a running linux system and you know how to compile a > kernel here's what you could do: > > 1) Get the latest patch here (put it in /usr/src/): > http://www.kernel.org/pub/linux/kernel/projects/rt/ > I'd go for > http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.24.4-rt4.bz2 > > 2) Get the matching kernel source (so for the above patch you need > 2.6.24.4) at kernel.org and put it in /usr/src/. Also make a symlink > from /usr/src/linux to your source > > 3) Apply the patch with: > cd /usr/src/linux > patch --dry-run -p1 < ../patch-2.6.24.4-rt4 > The above command (with --dry-run) doesn't apply anything, just reports > what will be done. So if you don't get any errors (and you shouldn't) > you run it again without "--dry-run": > patch -p1 < ../patch-2.6.24.4-rt4 > > 4) Copy the latest working .config into /usr/src/linux, on debian/ubuntu > it can be found in /boot/config-KERNEL-VERSION. > > 5) Configure your kernel with "make gconfig" (that's what I prefer). It > needs some gtk-devel packages installed, I always forget which, but > google knows. > > 6) Compile + reboot + make music :-) > > -- > peace, love & harmony > Atte > > http://atte.dk | http://myspace.com/attejensen > http://anagrammer.dk | http://modlys.dk > > > ------------------------------ > > Message: 14 > Date: Tue, 15 Apr 2008 09:11:58 +0200 > From: Atte Andr? Jensen <atte.jensen(a)gmail.com> > Subject: Re: [LAU] 90-minute liveset including Linux laptop > To: "lau >> linux audio users" <linux-audio-user(a)lists.linuxaudio.org> > Message-ID: <4804553E.4050302(a)gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Ken Restivo wrote: > > All the keyboard sounds are coming out of a Linux Laptop, played with > > a Novation MIDI controller. > > Nice! > > What's generating the rhodes and hammond sounds? > > -- > peace, love & harmony > Atte > > http://atte.dk | http://myspace.com/attejensen > http://anagrammer.dk | http://modlys.dk > > > ------------------------------ > > Message: 15 > Date: Tue, 15 Apr 2008 09:41:34 +0200 > From: Frank Barknecht <fbar(a)footils.org> > Subject: Re: [LAU] looking for synchronisable and OSC controllable > video player > To: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <20080415074134.GE4767(a)fliwatut.scifi> > Content-Type: text/plain; charset=us-ascii > > Hallo, > > nescivi hat gesagt: // nescivi wrote: > > I am looking for a video player that could be started and stopped through > > OSC and maybe synchronised as well. > > Apart from the other suggestions, you could also use Pd with Gem and > the pix_movie or pix_film objects. Then you get OSC, Midi, FUDI and > what not as a remote control protocol. > > And then you can also control mplayer remotely. All that is needed is > a FIFO, where you send commands like: > > 'echo "seek 10" > mp_pipe' > > The conversion from OSC to such FIFO commands should be easy with some > Python script or so. > > Ciao > -- > Frank Barknecht _ ______footils.org__ > > > ------------------------------ > > Message: 16 > Date: Tue, 15 Apr 2008 14:53:22 +0200 > From: schoappied <schoappied(a)gmail.com> > Subject: Re: [LAU] LASH (hydrogen) > To: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <4804A542.1040901(a)gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > Hi, > > Hydrogen is next with LASH support :) Testers are needed.... > > I hope ARdour and Rosegarden will follow soon... > > > 'Hi Dirk, the (still unannounced) release of Hydrogen 0.9.3.1 has LASH > support. > I'm searching for testers about the new LASH support in hydrogen, maybe > you can be the first :-D > > See > http://hydrogen-music.org/forum/index.php?action=show_thread&thread=718&fid >=2&page=1 > > for more information > > Ciao > -- > comix' > > > ------------------------------ > > Message: 17 > Date: Tue, 15 Apr 2008 15:02:27 +0200 > From: Mysth-R <mysthr21(a)gmail.com> > Subject: Re: [LAU] LASH (hydrogen) > To: schoappied <schoappied(a)gmail.com> > Cc: linux-audio-user(a)lists.linuxaudio.org > Message-ID: > <907c05c70804150602g619643bbm5e09d29d4785b7ab(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Cool, it's a good news. > In fact, I usally use scripts to launch my different sets of softwares, > directly opening the projects files. But if I can do it through LASH, it's > wonderful !! :) > Cheers, > > Mysth-R > > 2008/4/15, schoappied <schoappied(a)gmail.com>: > > Hi, > > > > Hydrogen is next with LASH support :) Testers are needed.... > > > > I hope ARdour and Rosegarden will follow soon... > > > > > > 'Hi Dirk, the (still unannounced) release of Hydrogen 0.9.3.1 has LASH > > support. > > I'm searching for testers about the new LASH support in hydrogen, maybe > > you can be the first :-D > > > > See > > > > http://hydrogen-music.org/forum/index.php?action=show_thread&thread=718&f > >id=2&page=1 > > > > for more information > > > > Ciao > > > > -- > > comix' > > _______________________________________________ > > Linux-audio-user mailing list > > Linux-audio-user(a)lists.linuxaudio.org > > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user

17 years, 1 month

[Reminder] Some elements of good practice (Was: How to build or from where to get...)

by Marc-Olivier Barre

On Mon, Apr 21, 2008 at 6:18 PM, CC-Band <CC-Band(a)web.de> wrote: > hi, > > is the rt-patch now already included in new stable kernel-version 2.6.25? > > thanx > mike Just a quick reminder to keep our archives nice and easy to read :-) - Try not to top-post when replying to a message. An interesting article is here (with more details) : http://en.wikipedia.org/wiki/Top-posting#Netiquette_Guidelines - Trim down the replied text to what you reply to (no need to resend the whole text of multiple emails) cheers :-) __________________ Marc-Olivier Barre, MarcO'Chapeau.

17 years, 1 month

Converting SMF 1 MIDI file to text?

by Ken Restivo

I'm trying to convert a standard MIDI file, format 1 (from seq24) to text. I need to grab the note numbers for a drum track, and compare that to a tapeutape XML file, so that I can figure out which Freesound samples I actually used in this track, so I can credit them appropriately as required by the CC Sampling license. I looked at midi.el, which seemed like it'd be perfect, but it won't open SMF 1 format files from seq24 at all (says it's not a valid MIDI file). It also has trouble with SMF 1 files from arecordmidi, though it reads SMF 0 files from arecordmidi with no problems. I also looked around at some Python MIDI libraries, but didn't find the documentation too accessible. Any quick one-liner in some command-line tool or language to give me a printout of all the MIDI notes used in each track of a SMF 1 MIDI file from seq24? -ken

17 years, 1 month

Re: [LAU] RME Digi96: probe of 0000:06:01.0 failed with error -12

by mat

i think correct the /etc/modutils/alsa was the clue, boot works well now, i have no new logs with this error message after a few reboots. do u think i should remove this file anyway? thanks

17 years, 1 month

RME Digi96: probe of 0000:06:01.0 failed with error -12

by mat

In fact, i realise i must have something wrong in /etc/ because i have 2go ram on this desktop and i can't find other "rme" sentence in boot log in /etc/ i have modules.conf as in alsa configuration page http://alsa.opensrc.org/index.php/Rme96 but i also have a file named alsa in /etc/modutils/ wich differs from modules.conf what i try to do is copy-paste same text in both files (with modules.conf as reference). or should i just delete /etc/modutils/alsa ?? i try , i boot , i tell u

17 years, 1 month

tool practice rhythm

by schoappied

Hi, I need to improve my feel for rhythm. Is there a (linux) tool for it? Any suggestions? Thanks, Dirk

17 years, 1 month

RME Digi96: probe of 0000:06:01.0 failed with error -12

by mat

Hi there, i have a strange problem with my soundcard when boot sometimes (others times it works well), i cannot start jack because it just doesn't find the pci card at all! so i checked the log and found this error : RME Digi96: probe of 0000:06:01.0 failed with error -12 i guess it has something to see with modprobe and 0000:06:01.0 should be the mac address of the card ?? or something like that so i guess it's unable to load the firmware?? i tried to remove & reinstall alsa-firmware-loaders with no results here is my /etc/modules.conf # ALSA portion alias char-major-116 snd alias snd-card-0 snd-rme96 # OSS/Free portion - card #1 alias char-major-14 soundcore alias sound-slot-0 snd-card-0 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss # Set this to the correct number of cards options snd cards_limit=1 # Other available module options # index int array (min = 1, max = 8), # description "Index value for RME Digi96 soundcard." # id string array (min = 1, max = 8), # description "ID string for RME Digi96 soundcard." # enable int array (min = 1, max = 8), # description "Enable RME Digi96 soundcard." and /etc/modules # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. loop snd-seq nvidia i'm quite lost and i hope you guys will give a hand thanks

17 years, 1 month

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Linux-audio-user April 2008