Linux-audio-user January 2010

linux-audio-user@lists.linuxaudio.org

166 participants
153 discussions

Anyone testing the new TerminatorX release?

by gerald mwangi

Hi, Has anyone tested TerminatorX 3.83pre? Gerald >Hi guys, I'm proud to announce Terminator 3.83pre for testing (http://www.set-germany.org/TerminatorX/terminatorX-3.83pre.tar.gz). >Changes: support for rubberband, filehandling exclusively through sndfile, some bugs fixed and i hope none introduced :) >Rubberband is used for timestretching the samples. Each turntable has now an extra 'tempo' knob to stretch/shrink the sample without change of pitch. >Furthermore a tempo sync option was introduced to sync clients tempo to that of the master: Select a master -> Select one or more clients -> Press >play (load some samples before ) and turn the master tempo knob and note the automatic change of the tempo of the clients. >Note that the tempo is actually just the stretch factor of the entire sample since the samples aren't analized for their transients (that's the next feature!). >To simplify the code, i decided to rely totaly on sndfile (http://www.mega-nerd.com/libsndfile/). That means only the formats understood by sndfile are >supported. >I tried to contact Alexander König, but he hasn't answered. Maybe we should pull up a sourceforge project? >Looking foreward to answers, ideas and complaints. >Yours, >Gerald

14 years, 10 months

2 keyboard independet live voice change

by Folderol

Waffly amblesome idea Today I tried an experiment with 2 instances of Yoshimi each fully populated with 16 different voice patches. These were then linked to 2 instances of the new Rosegarden 'Thorn' each with 16 tracks designated to the appropriate Yoshimi channels. These instances were in turn linked via MIDI to separate hardware keyboards. Now, with Rosegarden, whichever track is highlighted that is the one that plays through from MIDI input to output. This selection can be quickly changed using the cursor keys or the mouse. When playing live, this is not like a normal program change because there is no cutoff of existing notes. This has a number of interesting possibilities. The first is that by using two keyboards you can get a fantastic range of instruments without breaking your performance. The second one is that your can set up drones! Using a voice with a slow attack behaviour, if you hold down a note, then switch away to a different track Rosegarden will carry on playing that note (because it didn't get a note off). You now play against that drone with a different instrument (different track), and when you want to cancel it, simply switch back to the original track and briefly tap the same key. Finally, with a carefully placed computer keyboard and some fast button pushing you can get the effect of two different instruments playing together whilst apparently maintaining a third one with (say) a simple chord progression. Now, without in any way detracting from Rosegarden :) what would be interesting would be some form of program/script that could be set up so that multiple incoming MIDI streams could be redirected to different channels of different synths, each with a single (user definable) dedicated key press. -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

14 years, 10 months

Portable Digital Recorders

by Kevin Cosgrove

Hi there, I'm interested in getting a portable digital recorder, something that can run on batteries or ac power (presumably through a wall-wart?), that has built-in stereo mics, and something which will take 2-4 line external inputs. I've seen a lot of such things come on the market in recent years. Many have SD or SDHC cards for their audio memory, which is fine with me as I have an SDHC card reader in my computer. If I get one with a USB interface it's my _requirement_ that it operate with Linux over USB. The same would go for firewire, though I haven't seen any of those. Some units record only in lossy compressed format only, while others have uncompressed formats available. I would prefer the uncompressed format to be available. I'd also need at _least_ 4 hours of stereo 44.1kHz at at least 16-bit, with something like 24-bit being more desired by me. I'll be doing remote recordings, then bringing the audio home to chop up with Audacity and/or Ardour, then authoring the result to CDs. So, what works well with Linux and works well in general? Thanks people! -- Kevin

14 years, 10 months

Declination: Music made with Linux

by Gordon JC Pearce

I was fiddling about with various bits of Linux audio software and came up with several hours of recordings into Ardour. If I don't go quite as crazy with remixes as, say, Moby, then there is probably about 17 months of music in there. I've picked out one that I feel stands up on its own without further processing, and uploaded it to my server: http://www.gjcp.net/~gordonjcp/declination.ogg If you have time to download it (it's about 26 minutes long, 21Mbytes) and listen, I'd appreciate some feedback. I tried using a homebrew fuzzbox and a guitar amp, but that just made the neighbours bang on the wall (and they live half a mile further up the farm track). I consider this track to be in the Techno Reconstructed Yurt genre, with influences from Vangelis, Pierre Schaeffer and James Bilsland (the latter using a huge industrial pump to deliver heating oil to the 1300-litre tank at my house). If that is the kind of sound you are into or you wish to make people think you don't listen to "normal" music, then I think you will enjoy the track. If you don't or it's a bit too "experimental" for you then clearly you are an imbecile and you wouldn't know genuine avant-garde talent if it bit you on the backside. Enjoy, and I look forward to your feedback. I hope you get as much of a kick out of hearing it as I got off the anode caps of the power amp valves in my HF radio transmitter. Gordonjcp MM0YEQ

14 years, 10 months

+1 for Muse!

by Josh Lawrence

hey everyone, just a quick +1 for the muse sequencer...if you haven't tried it (and like linear sequencing), give it a whirl. things I like about it are: 1. the piano roll is really nice 2. can run without the audio engine 3. softsynths seem to be really well integrated it reminds me a lot of my early cakewalk 3.1 days (and I mean that as a compliment), and I've enjoyed working with it. one more thing - thank you for the youtube tutorials! I tend to learn best by hearing things explained, and having videos showing how to work the application is really nice! -- Josh Lawrence http://www.hardbop200.com

14 years, 10 months

Some suggestions/guidelines for the LAA posts

by Ivica Ico Bukvic

Dear fellow LA* members, As some of you may be aware, instead of a static news page, Linuxaudio.org now has a direct LAA feed as its front page. Consequently, I would like to encourage everyone to please put special care in crafting your LAA posts, meaning much more so than those destined for lau/lad lists, as this is in part what everyone sees when they visit Linuxaudio.org (and if our awstats are any indication < http://stats.linuxaudio.org/cgi-bin/awstats.pl?config=www.linuxaudio.org>, then we do get tons of exposure there that is perhaps more importantly steadily growing). I say this not because there have been some grave offenses recently but rather because I think as a community it would really nice if we collectively put extra attention to this facet that is much considerably "public" than a typical lau/lad post. So, I guess what I am trying to say is perhaps having a post on lau/lad lists mirrored on laa may not be always a good idea. If I had to single-out one post in there that could use some TLC :-) it would be the call for submissions for the upcoming LAC. Namely, suggesting that there has been little interest may end-up looking like a self-fulfilling prophecy--new and incoming potential contributors to LAC who may have come across this post could be easily discouraged by the way this reads despite the fact we all know that most conference submissions are usually uploaded in the last 72 hours before the submission deadline. At any rate, don't mean to be preaching, so I hope no one will get offended. And if you do, I guess I owe you a pint (hear that Frank? ;-) Just my 5-cents worth... Best wishes, Ivica Ico Bukvic, D.M.A. Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux Laptop Orchestra Assistant Co-Director, CCTAD CHCI, CS, and Art (by courtesy) Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-6139 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/faculty/bukvic/

14 years, 10 months

test

by Ivica Ico Bukvic

Testing... please ignore

14 years, 10 months

Beta testers required for jretune

by fons＠kokkinizita.net

Hello all, Jretune is a Jack client inspired by the 'autotalent' plugin (re)discovered and discussed some time ago on the LA lists. It uses the same algorithm (autocorrelation) for pitch detection, but there the similarity ends. All the code is entirely new. Its purpose is to process solo voice recordings to ensure they have correct pitch. It can't do miracles but it helps in some cases. Don't expect it to work on a mix. Main differences are: - Jretune is a Jack client and not a plugin. - A *much* cleaner output due to a better resampling and cycle jumping algorithm. - A very simple GUI, just 12 switches that allow to disable notes, and a 'nostalgic' analog tuning meter. The latter means you could probably use it as a guitar tuner as well, but don't expect miracles. Later versions will include a 'tuning' control to define the set of expected pitches, and maybe some other controls. This version is very much a beta one, released only to invite feedback from users. Once it has stabilised a bit it should be easy to tranform it into e.g. an LV2 plugin for those that want this, as the complete DSP code is contained in a single C++ class. Please don't do this now as the code is very immature. For the same reason it's available on request only, and I would expect packagers to ignore this version. If you want to test this just drop me a line to get the sources. -- FA O tu, che porte, correndo si ? E guerra e morte !

14 years, 10 months

Creating a MIDI file

by lanas

Hello all, Our younger son, who is doing stuff with Blender, has asked me to create a simple .mid file. I have ni idea how to do that. I regularly use jackd, Ardour, Seq24, jamin, Qsynth, zyn, and such although up to now I never create a .mid file. I guess I could make a sequence in Seq24, perhaps using two or three Qsynth instruments. From there, how would a .mid file be created ? And how can I specify that I want that and that instrument out of 2 or 3 playing these and these notes ? Cheers.

14 years, 10 months

Re: [LAU] [LAD] audio function generator ?

by Dave Phillips

Folderol wrote: >> On Sat, Jan 30, 2010 at 09:51:13PM +0000, Victor Lazzarini wrote: >> >>> what do you mean by an Audio Function Generator? >>> >> > > In the hardware world these are usually simply sine/triangle/square > wave generators, but the posh ones also do frequency sweeps, and the > very posh ones let you set up a range of mathematical functions that > will produce a repeating waveshape and/or sweep of your choice. > > Theoretically this aught to be far easier to do entirely in software > (and no, I don't have sufficient programming skill). I'm actually > quite surprised that we aren't knee deep in the things :) > > Thanks, Will, that's it exactly. I remember these things from long ago, haven't seen one for years. So, besides the one (with GUI) for the Mac, is there anything else recommended ? The advice for Csound et alia is good, but the asker doesn't know any audio programming languages. Baudline might be right, I'll suggest it and see if it works for him. Thanks to everyone who replied. As always, your help is greatly appreciated. Best, dp

14 years, 10 months

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Linux-audio-user January 2010