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Re: [LAU] could not start jack - already registered problem

by Len Ovens

On Wed, April 24, 2013 11:40 pm, Hartmut Noack wrote: >>>> To put it another way, does this problem show up right after a fresh >>>> login? >>> >>> Exactly: after a fresh login. Probably not PA, and besides you have tried with PA turned off. Pa was having problems about that time, but normally the problem was after having used it to stream. (it has been fixed since, but I don't know if the fix has been backported yet to either kxstudio or Ubuntu repos (in the works in ubuntu I think) >>> >>>> or only after having used the system for a while. What does your >>>> desktop use for most of it's non-jack audio output? >>> >>> Before I do anything else, I check if Jack is running. Browser, Skype >>> and the like use Pulse Jack sink, so I let Cadence start pulse-jack >>> after starting Jack. You may wish to use ps to check what jack is running. I have tried Cadence and it has a lot of different ways of doing things. You do have both jackd and jackdbus. Both Cadence and qjackctl are able to deal with either one. However some of the jack apps will start jackd if no jack is running. So if an app starts jackd and then you use qjackctl (for example) to start jackdbus, it will fail because the device is already in use. So maybe try: jack_control exit kill -9 jackd and see if jack starts. When you have this problem. Really, these are shots in the dark. I am trying to think what questions to ask that could narrow things down. -- Len Ovens www.OvenWerks.net

12 years, 6 months

About the Functional Transformation Method of sound synthesis

by Yvonnick Noel

Hello all, In the line of my previous post about lv2_guitar, I wondered if anyone ever tried to implement the Functional Transformation Method of sound synthesis in an open source softsynth. This would allow for all parameter adjustments, as described in: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.84.1572 An implementation is described in: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.10.6022 I must say that I know nothing about filter theory and would be totally unable to do write such a program myself, but maybe one of the signal theory gurus around here could have a look... :-) Best, Yvonnick

12 years, 6 months

Re: [LAU] could not start jack - already registered problem

by Len Ovens

On Wed, April 24, 2013 6:26 am, Hartmut Noack wrote: > Hello, > > I run KXStudio on Ubuntu 12.10 on a Lenovo Ideapad with a MAudio Mobile > Pre USB1 interface. > > Normaly all this works near perfection but there is a problem starting > Jack: > > Tue Apr 23 09:58:52 2013: ERROR: cannot register object path > "/org/freedesktop/ReserveDevice1/Audio2": A handler is already > registered for /org/freedesktop/ReserveDevice1/Audio2 > Tue Apr 23 09:58:52 2013: ERROR: Failed to acquire device name : Audio2 > error : A handler is already registered for > /org/freedesktop/ReserveDevice1/Audio2 Ok, so what application already has the audio port? Are you running an audio or video player? Have you been using a web browser that was seeing a video or just hit a page with video adds? To put it another way, does this problem show up right after a fresh login? or only after having used the system for a while. What does your desktop use for most of it's non-jack audio output? -- Len Ovens www.OvenWerks.net

12 years, 6 months

Re: [LAU] lv2_guitar error

by Yvonnick Noel

Hallo Hartmut, > looks like the build has failed what do you get with > > file /usr/lib/lv2/lv2_guitar.lv2/lv2_guitar.so Here is the result: file /usr/lib/lv2/lv2_guitar.lv2/lv2_guitar.so /usr/lib/lv2/lv2_guitar.lv2/lv2_guitar.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=0x3a6173200d412472f9bb1695f3de6ca19c8d8c4e, not stripped Thank you for your help. Yvonnick

12 years, 6 months

CALL FOR WORKS! April 15, 2012 DEADLINE: STUDIO 300 Festival

by Timothy Polashek

CALL FOR WORKS: http://www.transy.edu/music/STUDIO_300/2012_Call_for_Works.html STUDIO 300 Digital Art and Music Festival, 2012: DEADLINE is April 15, 2012 ===================================================================== TRANSYLVANIA UNIVERSITY is accepting submissions for the STUDIO 300 Digital Art and Music Festival. This international festival will take place in Lexington, Kentucky, USA on September 28 & 29, 2012. MISSION The Studio 300 Festival explores creative manifestations of technology through concerts and exhibitions of digital art and music. This year’s festival will feature concerts in Haggin Auditorium, and multimedia gallery exhibits in the Morlan Gallery and the BYTE Gallery kiosk. Artists and musicians from Lexington and across world will be participating. A late night concert will also take place off campus at Al’s Bar. SUBMISSION DEADLINE Submissions must be received by April 15, 2012. There is no submission fee. PARTICIPATION GUIDELINES Composers and Artists whose works are accepted and programmed for performance in concerts or installations are required to attend in person. Composers and Artists are expected to provide their own performers if needed. Hotel discount rates will be available, and participants will receive free admission to all events. A registration fee of $45.00 is required for participation. Early registration fee (received before May 1st, 2012) is only $25.00, instead of $45.00. Composers and Artists whose works are accepted for the BYTE Gallery digital kiosk are not required to attend in person, but are certainly welcome. Participants in the BYTE Gallery are not required to pay a registration fee. ===================================================================== WORK CATEGORIES 1) Electro-Acoustic Music: Fixed Media (Concert or BYTE Gallery) The Electro-Acoustic Music category is for fixed works of music/sound art. These works should be electronically/digitally conceived and produced. In other words, these should not be recordings of vocal or instrumental acoustic compositions. It is certainly acceptable, however, that works may be derived from acoustic sound sources. Stereo or multichannel (5.1, Quad, or Double Diamond 8(Front:L,C,R;Side:L,R; Rear: L,C,R) is acceptable for concert presentation, although a stereo mix should be available for BYTE Gallery works. 2) Electro-Acoustic Music: With Performer(s) (Concert only) The Electro-Acoustic Music category is for works of music/sound art that involve a live performance element, including interactive works. 3) Videomusic (Concert or BYTE Gallery) The Videomusic category is for works that explore non-narrative abstraction with equal emphasis on electro-acoustic music/sound art and moving images. Stereo or multichannel (5.1, Quad, or Double Diamond 8(Front:L,C,R;Side:L,R; Rear: L,C,R) is acceptable for concert presentation, although a stereo mix should be available for BYTE Gallery works. 4) Dramatic Video (BYTE Gallery only) The Dramatic Video category is a theatrical work of short video/film where digital technology is an essential part of the creative process. The video should be accompanied by stereo audio, unless it is intentionally silent. If the work includes sound, it must be stereo. 5) Animation (Concert or BYTE Gallery) The Animation category is for video works that explore non-narrative abstraction with primary emphasis on moving images. Works may or may not include sound. Stereo or multichannel (5.1, Quad, or Double Diamond 8(Front:L,C,R;Side:L,R; Rear: L,C,R) is acceptable for concert presentation, although a stereo mix should be available for BYTE Gallery works. 6) Digital Print/Still Image (BYTE Gallery only) The Digital Print/Still Image category is for fixed/still artworks where digital technology is an essential part of the creative process. 7) Installation (Various locations) Interactive installation/sound sculptures. Artists submitting installation works should submit an abstract along with supporting imagery, diagrams or footage of the installation. Artists will be required to provide all resources: computers, speakers, etc. 8) Late-Night Club Electro Music (Concert only) This category allows for electronic/computer/techno/electronica, etc., music that explores hybrid forms, intended for bar/club venues. DJ set, jam band, songwriters, jazz soloist with a machine counterpart, etc., as long as the electronic part is significant and relevant, works in this category are welcome. ===================================================================== SUBMISSION GUIDELINES Submission is through email only—do not attach anything to the email, instead provide web links to your application materials. Each entrant may submit up to two (2) works. Email your submission to studio300(a)transy.edu Submissions must be received no later than April 15, 2012. Completed submissions will include: 1) web link to a pdf/text file of the application form (see below) 2) web link to the submitted work (audio file, image file, movie file, etc.) 3) web link to a photo (image file) of the artist/composer/producer Any questions? Please contact: Dr. Timothy Polashek Director, STUDIO 300 FESTIVAL AT TRANSYLVANIA UNIVERSITY tpolashek(a)transy.edu ===================================================================== SUBMISSION FORM 1) Name of creator/s: ________________________________________________ 2) Address of creator/s: _____________________________________________ City, State, Zip code, Country: _________________________________________________ 3) Phone number of creator/s: (____) _______________________________ 4) E-mail of creator/s: _______________________________________________ 5) Category of Submission (check one): ____ Electro-Acoustic Music: Fixed Media (Concert or BYTE Gallery) ____ Electro-Acoustic Music: With Performer(s) (Concert only) ____ Videomusic (Concert or BYTE Gallery) ____ Dramatic Video (BYTE Gallery only) ____ Animation (Concert or BYTE Gallery) ____ Digital Print/Still Image (BYTE Gallery only) ____ Installation (Various Locations) ____ Late-Night Club Electro Music (Concert only) 6) Title of piece: _______________________________________________ 7) Duration: _____ minutes ______ seconds 8) Names of other artists or contributors: _____________________________________________________ _____________________________________________________ 9) Year of completion: _____ 10) Link for downloading your submissions materials: _____________________________________________________________ 11) Program note for the piece (100 words): _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ 12) Biography of the artist (100 words): _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ 13) Should your work be chosen for STUDIO 300 FESTIVAL, do you grant permission of this use, acknowledging that this use is voluntary and that you will not be compensated for your participation? ______ Yes ______ No 14) Do you wish your work to be considered for programming on concerts? Composers programmed for concerts are required to attend in person. ______ Yes ______ No 15) Do you wish your work to be considered only for the BYTE Gallery kiosk? Composers/artists included in the BYTE Gallery are not required to attend in person. ______ Yes ______ No 16) Do you wish your work to be considered for both the BYTE Gallery kiosk AND concerts? Composers/artists included in the BYTE Gallery are not required to attend in person. Composers programmed for concerts are required to attend in person. ______ Yes ______ No 17) Do you approve of your work being accompanied by dance? ______ Yes ______ No 18) Should your work be chosen for the STUDIO 300 FESTIVAL, do you give permission to use audio clips, images of your work, and your likeness (photo image file) in university promotional materials? ______ Yes ______ No URL for this CALL FOR WORKS! http://www.transy.edu/music/STUDIO_300/2012_Call_for_Works.html For more information contact Timothy Polashek (tpolashek(a)transy.edu), director of the STUDIO 300 Festival, Transylvania University, 300 North Broadway, Lexington, KY 40508 USA STUDIO 300 Digital Art and Music Festival, 2012 September 28 & 29, 2012 Lexington, Kentucky USA

12 years, 6 months

lv2_guitar error

by Yvonnick Noel

Hello, I wanted to give the lv2_guitar plugin a try (http://www.lms.lnt.de/research/activity/systems/topics/synth/index_lv2.shtml) and compiled it for my system, following some advice here: http://wootangent.net/2011/06/lv2-synths-for-ardour-3-a-list/ but get no sound. The error message in qtractor reads: lilv_plugin_instantiate(): error: No plugin <http://www.lnt.de/lms/lv2_guitar/0> in <file:///usr/lib/lv2/lv2_guitar.lv2/lv2_guitar.so> I am not sure what this message means. Is a valid web URL required to get LV2 plugins work? Thank you for any tip, Yvonnick

12 years, 6 months

[Music] Horror prog: Spiral Torso Op

by Q

Hello I got a new synth in December and thought I'd do a short piece to get to grips with it and put it through its paces. You can find it here: FLAC (36.7 MB): www.quirq.ukfsn.org/Quirq_Spiral-Torso-Op.flac OGG (14.9 MB): www.quirq.ukfsn.org/Quirq_Spiral-Torso-Op.ogg MP3 (12.6 MB): www.quirq.ukfsn.org/Quirq_Spiral-Torso-Op.mp3 I set myself the limitation that it would be the only synth/keyboard instrument used (wot, no Mellotron?!), so everything other than drums, percussion, acoustic 12-string and electric 6- and 12-string is just this one synth. It was also the first outing for my electric 12-string, which came out nicely. It was an interesting challenge, especially trying to wrangle a range of sounds out of the synth, as it is non-programmable and monophonic, so a huge amount of multi-tracking and layering was needed. The piece has turned out a completely different way to what I was expecting before I set out, ending up with a bit of a Goblin horror soundtrack vibe, so I gave it an appropriate (and also slightly topical) title. Recorded, mixed and mastered in Ardour 3. Cheers Q

12 years, 6 months

Re: [LAU] Adding a USB device (not working)

by Len Ovens

On Mon, April 22, 2013 4:02 pm, Bob van der Poel wrote: >> Some front ports can't provide enough power for the device. I'm guessing >> this thing is USB powered right? > > Okay, that makes as much sense as anything else. The front ports are > connected to a header on the motherboard; the rear ones are mounted > right to the MB. I'm sure they all use the same usb chip. Easy to test. Put a powered hub in the front and plug into that. -- Len Ovens www.OvenWerks.net

12 years, 7 months

Re: [LAU] LiSP (Linux Show Player) - player specifically designed for stage productions

by Mac

> > ------------------------------ > > Message: 12 > Date: Mon, 22 Apr 2013 22:33:57 +0200 > From: Francesco Ceruti <ceppofrancy(a)gmail.com> > To: linux-audio-user(a)lists.linuxaudio.org > Subject: [LAU] LiSP (Linux Show Player) - player specifically designed > for stage productions > Message-ID: <51759EB5.7000808(a)gmail.com> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > I'm happy to announce the release of LiSP (Linux Show Player)! > > "LiSP (Linux Show Player)" is a sound player specifically designed for > stage productions. > The goal of the project is to provide a stable and complete playback > software for musical plays, theatre shows and similar. > > Features: > - Button matrix user interface, suited for touchscreens; > - Multiple tracks playback; > - Sound FX: gain, equalization, pitch shift, speed control and > compression applied in real time on each track > - Peak and ReplayGainnormalization > - Remote control over IP of slave/backup PC; I applaud your effort. Something I've been thinking about for years. :) I have not had time to try it yet, but did look at the wiki. Is my understanding correct: at this point it plays a given audio file when the button is pressed? Can it be configured to advance to the next cue when the previous cue is complete? Can it advance and play automatically on completion of the previous cue? Can it play a given cue in the background while other cues are played? Can it fade any currently playing cue/s? Or fade all playing cues? Can it cross fade? For a good sample of features check out CueplayerPro http://baxeldata.com/cueplayer.html

12 years, 7 months

Update: video micing question

by Paul DeShaw

I found out that the reason our wireless lavalier and headset mics were not being used properly is simply that the instructors don't like wearing them. The main person running our AV is well aware of the loss of sound quality, and welcomed any suggestions I could provide. I'll read back over the thread...and I'll try searching the web to find out about those mics often seen hanging over choirs and orchestras. But really this is more of an interpersonal psychology/communication problem than a technical one. Even so, I'm glad I asked here because the resulting thread has been such an education. I'm even glad I neglected to mention that the mics are wireless because of the discussion of cabling and soldering. Thanks to all. Paul DeShaw

12 years, 7 months

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