Linux-audio-user October 2005

linux-audio-user@lists.linuxaudio.org

174 participants
148 discussions

by philicorda

I can't seem to see the guis for DSSI instruments. If I start (for example) hexter with ghostess I get... [philicorda@lounger dssi]$ ghostess -debug -1 hexter.so ghostess: ghostess starting... ghostess: debug level now ffffffff ghostess warning: DSSI_PATH not set, defaulting to '/usr/local/lib/dssi:/usr/lib/dssi' ghostess: dlopen of '/usr/local/lib/dssi/hexter.so' failed: /usr/local/lib/dssi/hexter.so: cannot open shared object file: No such file or directory ghostess: 'hexter.so' found at '/usr/lib/dssi/hexter.so' ghostess: instance 0 on channel 0, plugin 0 is 'hexter/hexter/inst00' ghostess: host OSC URL is osc.udp://lounger.tydrwg.org:12990/ ghostess hexter/hexter/inst00: program 127 is MIDI bank 0 program 127, named ' <--> ' ghostess hexter/hexter/inst00: program 126 is MIDI bank 0 program 126, named ' <--> ' (Lots more midi stuff).... ghostess ready ghostess on_strip_ui_button_toggled: instance 0 button changed to on ghostess: checking hexter_gtk against hexter ghostess: trying to execute UI '/usr/lib/dssi/hexter/hexter_gtk', URL to host will be 'osc.udp://lounger.tydrwg.org:12990/dssi/hexter/hexter/inst00' hexter_gtk starting (pid 12065)... But I see no gui. Anyone know why? jack-dssi-host does the same thing. If I don't put the '.so' on the end of the instruments name, it is not found at all. I'm using Fedora Core 4 CCRMA.

19 years, 3 months

[linux-audio-user] Portable field recording set-up?

by S. Massy

Hi, For a project of mine, I would need a portable, affordable ($200-250) way to make quality stereo recordings of natural and/or urban environments. Here are the criteria I have defined so far: * sr should be at least 44.1khz * recording should be stereo * if compressed, prefer lossless compression, otherwise, good quality encoding: minimum 160kbps * Should be reasonably portable (i.e compact and battery-operated) and sturdy. So far, the idea I came up with is to use one of those little Iriver flash players, or even one of their hd-based ones, if I can find one chap enough, with a stereo mic going into a little pre-amp, then going into the Iriver's line-in. Anybody has any comments on such a set-up? Any other idea comes to mind? I heard that minidisc recorders do a very good job when used for field recordings, and that many already have inputs for a stereo mic, but, as far as I could tell, they interact very poorly with Linux, and they use a proprietary compression format. How accurate is this? Has anybody had a positive experience with a minidisc recorder and Linux? Thanks, S.M. -- smassy(a)sdf.lonestar.org

19 years, 3 months

[linux-audio-user] [ANN] Warsaw Electronic Festival -- Warsaw, Poland

by Pawel Wolniewicz

Hi all, This announcement is addressed mainly to Polish-speaking readers of LAU. I've posted it here to let you know about Linux audio users community in Poland. Warsaw Electronic Festival 2005 "Creativity in Motion" october 16. - november 5. 2005 Warsaw Electronic Festival [1] is an annual event for artists -- especially musicians -- exploring new media technologies. It takes place in Warsaw, Poland. Among tens (hundreds?) of lectures and workshops WEF 2005 will feature presentations of open source projects: - Plasma [2] -- remastered Linux distribution (Knoppix) containing audio software; prepared especially for musicians visiting WEF 2005; package developed in cooperation with Polish Linux & Music site [3], - EyesWeb [4] -- Open Source modular audio / video software. Time and locations of these events are listed below. All lectures & workshops will be given in Polish (Sorry). Excerpt from official WEF 2005 press note [5]: "The WEF is international festival which reveals music created with and under the influence of technology. A the Festival you can experience both electronic music and new media art. One of our goals is to show the context in which all these things are brought to life. This is why we also invite professors and experts who show you how they perceive the rapidly moving progress and new art. The WEF is an annual event and dates back to 2002. As always also this year it takes place in Warsaw." A few words about workshops focused on the open source software: "Plasma -- Alternative Operating System for Musicians" oct 16., 16:00 local time (part I); oct 23., 16:00 local time (part II) "Presentation and workshop of the multimedia Plasma operating system (Linux based) which contains a full set of solutions for musicians. Developed [...] at the initiative of WEF2005". "EyesWeb" nov 5., 12:00 local time "Workshop on the basics of the Open Source audio / video modular software." All lectures & workshops will be held in "Zacheta" National Gallery of Art -- pl. Malachowskiego 3, 00-916 Warsaw, Poland Useful links: [1] Warsaw Electronic Festival [in English] http://www.wef.pl/2005/?lang=en [2] Plasma -- distribution prepared for the WEF 2005 workshops [in Polish] http://linux-muzyka.ixion.pl/tekst.php?id=25078 [3] Linux, Sound & Music -- Polish site [in Polish] http://linux-muzyka.ixion.pl/ [4] EyesWeb -- The EyesWeb project [in English] http://www.eyesweb.org/ [5] Warsaw Electronic Festival 2005 -- Press Materials [in English] http://www.syntezatory.pl/gfx/download/WEF05presskit_en.zip Regards, Pawel Wolniewicz

19 years, 3 months

[linux-audio-user] FreeCast 20051009 released

by Alban Peignier

Freecast is a peer-to-peer streaming system that makes it possible to stream Ogg audio or video to a large number of listeners from a DSL connection: http://www.freecast.org The major change of this new release is the *FreeCast Manager*: this new GUI allows you to start a FreeCast network by a single click. Every needed components (even a tiny HTTP server) are embedded into a single and graphical application. The website integrates now a part dedicated to the broadcasting with FreeCast: http://www.freecast.org/broadcast For more information about this release, see the whole changelog (http://download.freecast.org/README.html) -- Alban Peignier <alban.peignier(a)free.fr> http://people.tryphon.org/~alban

19 years, 3 months

[linux-audio-user] sample-rate/bit-depth wav converter

by Andrew Gaydenko

Please, recommend the best sample-rate/bit-depth wav converter with least quality loss. The aim is 96/32 to 44.1/16 conversion. CLI is acceptable, of cource.

19 years, 3 months

[linux-audio-user] Programming Tempo Changes in Hydrogen

by David Haggett

Is it possible to program a mid-song change in tempo into Hydrogen? I'd like to switch from about 88 to 110bpm at 2/3 of the way through. I thought about recording it into ardour in 2 stages, but it seems a bit of a kludge. Thanks in advance -- David Haggett

19 years, 3 months

[linux-audio-user] Book recommendations

by John Anderson

I've been asked to write a driver for a PCI card that will interoperate with asterisk. I've been writing code in several languages for years, but I'm new to linux kernel coding, and to PCI hardware. I've already found some fairly good info on TLDP, and on the net in general, but I also need some good big-picture info. I've looked on Amazon, but I'm feeling overwhelmed by all the options. So I'm looking for good books on writing kernel drivers (2.4 and 2.6) and interfacing with PCI hardware. I figure this is a good place to ask, because the driver will need to deal with multiple audio streams, although only at 8khz. thanks John

19 years, 3 months

[linux-audio-user] Re: Portable field recording set-up?

by carmen

> 'm trying to find the balance between affordability and > ease of use, and sound quality. Any further ideas? ive heard some quite good field recordings made with consumer Archos and iAudio audioplayers, which can record in PCM or the very least 320kbps mp3..which is a suitable tradeoff..they were made with a small clip-on sony microphone, the kind thats just a 1/8" plug and the element on top of that. im sure other companies make them as well.. c.d.r

19 years, 3 months

[linux-audio-user] Re: Short movie with music

by norv

Thanks for the comments on the movie, I'm well chuffed! 1) This proves that Cinelerra can actually make a movie. My son and I have tried a number of times to use it and haven't figured out the first thing about it. 2) Groovy little sound track. How did you go about building the sound against the movie? Is it a single audio track output from Ardour, or is ti a bunch of pieces that are then laid down in Cinelerra against the video somehow? Hey Mark I will post a howto somewhere soon.. I export a stereo .wav from Ardour, try it against the rough cut of the movie, and go back to Ardour to change it if needs be. Can't run Ardour and Cinelerra in sync AFAIK. There's an app called xjadeo (x-jack-video...) that will run audio and video together but I haven't got that going on my 64 box yet. Cool work. I especially liked the sound of the slide guitar, sounded a lot like the pedal steel in King Sunny Ade's music. Thanks Dave, the slide seemed to fit into the rise and fall of bikes going up and down over things... and I love that KSA sound! More coming as time permits.. Thanks Cesare and Nigel for the encouragement and Ron, I'm glad you like the pix but it's much better with the sound - lol! Cheers Norv PS: Here's a summary of the forthcomin (hopefully!) howto SUMMARY 1. Shoot some movies on a digital still camera in movie mode (If you can get a video camera, then use that!) 2. Capture movies, ie. copy/move them from the camera to a hard drive 3. Convert the camera files to a format that the video editor (in this case Cinelerra) will understand 4. Load the converted files into the editor and do a rough assembly of the material 5. Make some music, for example starting with a Hydrogen drum track 6. Add the other instruments. At this stage, less is more 7. Rough mix the music and export a 48kHz stereo .wav file 8. Load the .wav file into Cinelerra and play film and music together 9. Fine tune picture and sound 10. Export the project as a Quicktime4Linux .mov file 11. Convert the .mov to preferred web-friendly format 12. Upload to web 13. Convert (320x240) .mov to PAL MPEG video and audio files 14. mplex MPEG video and audio streams into DVD-friendly MPEG-2 file 15. Create DVD menu images and sound 16. Assemble menu MPEGs 17. Create .xml file to organise DVD contents 18. Create DVD iso image with dvdauthor 19. Test DVD image with Xine 20. Burn DVD image to DVD with growisofs

19 years, 3 months

[linux-audio-user] OT: Wireless digital headphones

by Andreas Kuckartz

Maybe someone here has some suggestions or hints (including websites). I am looking for good wireless digital headphones which I can directly connect to a computer. These are the main requirements: - wireless - digital transmission - digital connection to computer - no hiss / high fidelity (and compatible with Linux ;-) So far I found information on these models: Radio transmission: - AKG Hearo 888 Digital / Hearo 999 Digital (Audiosphere II) - Amphony Model 1000 / 2000 / 2500** - Philips SBC HD 1500 Infrared transmission: - Pioneer SE-DIR800C - Sony MDR-DS3000 / MDR-DS4000 Cheers, Andreas

19 years, 3 months

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Linux-audio-user October 2005