Linux-audio-user December 2006

linux-audio-user@lists.linuxaudio.org

161 participants
166 discussions

by we are

hey all, i have been using ardour2 (CVS) for about a year now and it has proved extremely useful and powerful. however, i am very confused when it come to how to control gain. firstly, i am using a gentoo system with a RME multiface with PCMCIA. (love this combo) I have a lot of problems getting a nice amount of gain from various sources, namely keyboards/synths, guitars, and live mixing desks. When i record into ardour the waveform is barely visable but i can hear it. it is pretty useless unless i normalise it after recording. this has been what i have been doing everytime i record something and its becoming a very tedious and i feel it is bad practice. i know that the multiface can have the internal gain changed to -10 +4 but i don't think that is the issue as the equipment i am using is nothing unusual. also, trying to get decent gain out of ardour is difficult to. the strange thing is that when i play files in audacious/XMMS though jack while ardour is running its REALLY loud. futhermore, when i import external sound files on ardour and preview the sound in the dialog box, once again its REALLY loud. could someone please explain to me what is happening. and yes, i have been using the HDSPmixer to alter gain however, i feel that the resolution of the faders is a little weak. thanks all! keep up the good work.

17 years, 5 months

[linux-audio-user] Re: Re: LightScribe and linux

by Kjetil S. Matheussen

Cesare Marilungo: > Tommi Sakari Uimonen wrote: >>>>> I mean big hardware manufacturers releasing open source drivers. >>>> Is > there any? >>>>> >>>> AFAICT Intel are somehow tied to a group (maybe directly) which >>>> works on >>>> Xorg drivers for Intel GFX hardware. Are Intel big enough ? :) >>>> >>> Somehow :-) . Maybe directly ;-) . >> >> http://intellinuxgraphics.org >> >> >> Tommi >> >> > Ok, but even intel still releases most of their driver as binary only > (e.g. for chips used in wireless cards, modems). Why? > I don't have this impression of intel. Do you have any references to intel releasing "most of their drivers as binary only"? (maybe the do for windows, but that might just be because of tradition.)

17 years, 5 months

[linux-audio-user] RE: linux audio wiki

by Ivica Ico Bukvic

Hi Nedko, A while ago I proposed merging documentation efforts of the community, spearheaded by Dave's now unfortunately cancelled 2nd edition of his venerable book. Linuxaudio.org is already trying to head in this direction and we are currently in the process of assembling a team to utilize presently empty sub-domain docs.linuxaudio.org which ought to be perfect for this purpose (rather than hijacking lau faq site which has its own specific purpose). One possible scenario (which FWIW I very much favor) is to have a Wiki page that would sum up all of the projects listed on Dave's site as well as those that are also relevant but have not yet made it there. Using a similar template format we should provide a continuously updated consolidated resource for all Linux audio users, and more importantly all Linux distributions to reference. As such, we are also hoping to attract various distros to contribute to the same documentation project. So far goto10 guys (dyne creators) have expressed interest in the idea... Best wishes, Ico > -----Original Message----- > From: Nedko Arnaudov [mailto:nedko@arnaudov.name] > Sent: Monday, December 04, 2006 9:09 PM > To: ico(a)linuxaudio.org > Subject: linux audio wiki > > There was a talk in #lad and there is idea to have general purpose wiki > for linux audio. http://lau.linuxaudio.org/faq looks perfect except that > it is "user" faq oriented. What you think about having "lau faq" > category with all current lau faq pages in it and using the mediawiki > installation as general purpose linux audio wiki. Such wiki will include > user and developer oriented pages. It will include also information > about belonging of software to groups like lv2, dssi, jack, alsa midi, > jack midi, jack audio, sequencer, host, etc. Something similar (software > categorization/grouping) is made at http://linux-sound.org/ and > http://lawiki.fugal.net/linuxaudio/show/HomePage > > -- > Nedko Arnaudov <GnuPG KeyID: DE1716B0>

17 years, 5 months

[linux-audio-user] Re: LightScribe and linux

by Kjetil S. Matheussen

Cesare Marilungo: > > chris beagles wrote: >> On 11/30/06, Stephen Hassard <steve(a)hassard.net> wrote: >>> Marc-Olivier Barre wrote: >>>> On 11/28/06, Timothy A Gorman <timg(a)expressmart.com> wrote: >>>>> Nox exactly audio related but to me it is... >>>>> http://www.lacie.com/support/drivers/driver.htm?id=10095 >>>> If it works, I'll be the happiest man in the world... >>> >>> What license is this released under? I assume that it's a binary-old >>> proprietary license? >>> >>> Thanks, >>> Steve >>> >> >> They spelt ubuntu wrong... >> And it looks a lot like a binary only license. > Is there any big manufacturer who ever released open source code? > Oh yeah. A better question would be, which big manufacturer who _never_ release open source code. But not even Microsoft qualifies as being one of those: http://www.alfred-j-faust.de/download/BarsnPipesSrc.zip (Link to a commercial sequencer they bought up and later released for free with the source "as is")

17 years, 5 months

[linux-audio-user] output from jack as /dev/dspX

by Atte André Jensen

Hi I'm trying to grab a video with the audio coming from jack. The command I run to get video/audio from my web cam is: ffmpeg -vd /dev/video0 -ad /dev/dsp3 -r 25 -s 640x480 demo2.avi However, I'd like the sound to come from jack. Is it possible to get jacks output from a device similar to /dev/dsp3 that ffmpeg will understand? -- peace, love & harmony Atte http://www.atte.dk | quintet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions

17 years, 5 months

[linux-audio-user] corrected by cdparanoia

by Andrew Gaydenko

There is "Legend of characters" for cdparanoia: http://www.xiph.org/paranoia/faq.html Does word "corrected" mean bit-to-bit-accurate result?

17 years, 5 months

[linux-audio-user] Recording Fluidsynth playing a MIDI file with ardour

by Steve Fosdick

Hi, I'd like to be able to play a MIDI file with fluidsynth and have ardour record the output to I can mix other tracks into it. The two approaches I could think of were: 1. Have fluidsynth output to a WAV file and import that into ardour. I haven't been able to do that because I can find a fluidsynth output driver that writes to a file. 2. Connect the output of fluidsynth to the ardour track with jack. This is also problematic because I can't use qjackctl to make the connection until fluidsynth is started but I don't seem to be able to start fluidsynth and give it a MIDI file without it starting to play the file immediately so by the time I've made the connections and hit "record" it is half way through. Does anyone please have ideas how I can do this? Steve.

17 years, 5 months

[linux-audio-user] Software recommendation

by Chris McCormick

Hi All, This is a request for information about which bit(s) of software people would recommend for a particular musical workflow. I build my synthesizers in Puredata and I have an uc33 controller to do knob tweaking via midi. This Christmas my girlfriend is getting me a USB midi keyboard and I'd like to start writing some 'live' tracks using that. Puredata's strong point is not sequencing and notation, so what I need is an application that I can send midi notes and controller data through, which will remember them and pass them on to Puredata. Ideally I could go back after playing a track live, and shift notes around, modify controller envelopes etc. I am happy to do something like use vmidi loopbacks or whatever. I'm on Debian and my preference is for something that won't pull in too many wacky dependencies, but please don't let that stop you suggesting something. I use Fluxbox and mostly Gtk based apps. Thanks very much for your time! Best, Chris. ------------------- chris(a)mccormick.cx http://mccormick.cx

17 years, 5 months

[linux-audio-user] VOIP and JACK

by Esben Stien

Just reporting on status of hooking up VOIP to JACK. I'm sure there are many wondering. I found twinkle softphone to work very well with oss2jack. (I'm on linux-2.6.18-rt1). Twinkle unfortunately does not separate the UI from the core, but it's the only piece of software I've found that works. I hope we can get the LAD VOIP channel up and running again. -- Esben Stien is b0ef@e s a http://www. s t n m irc://irc. b - i . e/%23contact sip:b0ef@ e e jid:b0ef@ n n

17 years, 5 months

[linux-audio-user] Bristol segfaults when run on real-time kernel while works fine on regular.

by Glen Kirkup

Unfortunately I've recently come across a problem when running the startBristol script. I switch between two kernels (CK for desktop and RT7-CK for real-time music work). When within the CK kernel the program runs as expected, but when in the RT7-CK kernel, as both user and root, the program crashes and outputs this message with any selection of synth, audio driver and port: [root@myhost bin]# ./startBristol -jack ./startBristol: line 188: [: too many arguments spawning midi thread parent going into idle loop midi sequencer Problem with bind Could not open control listening socket: 0 No controlling socket available: anticipating MIDI connected to :0 (814b2f0) Error opening control device, exiting midi thread display is 1280 by 800 pixels Window is w 1280, h 800, d 24, 0 0 0 Using TrueColor display masks are ff0000 ff0000 ff0000 Initialise the arp2600 link to bristol: 8153348 hostname is localhost, bristol port is 5028 ./startBristol: line 272: 3877 Segmentation fault brighton $* -engine [root@myhost bin]# parent exiting [root@myhost bin]# As a Linux novice I do not know what could cause this. I changed the permissions of the entire bristol-0.9.5 directory to '777' after my preliminary tests, but this did not help. I have not experienced problems with other audio software using this kernel. If anyone could give assistance then I would be extremely grateful. Thanks, Glen _________________________________________________________________ Windows Live Messenger has arrived. Click here to download it for free! http://imagine-msn.com/messenger/launch80/?locale=en-gb

17 years, 5 months

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Linux-audio-user December 2006