Linux-audio-user June 2010

linux-audio-user@lists.linuxaudio.org

143 participants
146 discussions

midi: trigger a "piano roll scroller" type thing?

by Aaron L.

Hi all. I don't do any midi stuff. I've messed around with it a bit and understand the basics but I'm wondering if a certain midi "feature" (not sure what to call it) exists. Let's say you have a pre-recorded bass track...... And you create a midi file out of it.... Would it be possible to trigger each individual note of that midi file with, say, a kick pedal in real, human time? This would mean that every kick drum hit would trigger a new note (the next one in the series) but would still be triggered by a human being's sense of rhythm. I'm sure this exists but I have no idea of what it's called. And, of course, what are the best open source options to achieve something like this? Hope this makes sense. Thanks. -Aaron

13 years, 10 months

tuning aeolus (was Re: A Bach in appology and completeness :-))

by Aaron Krister Johnson

Hey all, Since the subject of temperaments and tunings came up I just wanted to mention that I'm such a passionate devotee of non-12-equal tunings and microtonality, that I started an organization called UnTwelve ( www.untwelve.org), whose mission is to program and educate people on music in various different tunings and temperaments. You'll also be interested to know that I hacked on Aeolus 6 years or so ago and added a custom Just Intonation scale using only the 3rd and 7th harmonics. The results can be heard at: http://www.akjmusic.com/audio/theatre_work/PeerGynt/07_troll_music.mp3 to explore some of my other stuff, check out the general portal to my music at http://www.akjmusic.com/works.html Cheers, Aaron. On Sun, Jun 20, 2010 at 7:07 PM, <fons(a)kokkinizita.net> wrote: > Hi Julien, > > > Is it easy to change the temperament setting by hand? And does > > Werckmeister III still sound OK with other instruments tuned the > > modern (equally or is ti well tempered) way? > > It's easy to change. Edit the file stops-***/Aeolus/definition. > Near the top you'll find a line > > /tuning 440.0 1 > > The second number is an index into the list in my previous > post, starting at zero. You'll find it as well in scales.cc. > > Werckmeister III will probably work well in most cases. > To test, play something in A flat. The main problem with > Meantone is the Ab-C-Eb chord (just try it !). > > If you want to switch easily, you could for example create > a directory stops-***/Aeolus-ET, copy the definition file > there and set it to Equal Temperament. Then use the -I > command line option to select this one. > > Ciao, > > -- > FA > > O tu, che porte, correndo si ? > E guerra e morte ! > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user > -- Best, Aaron Krister Johnson http://www.akjmusic.com http://www.untwelve.org

13 years, 10 months

does tartini run on linux

by Rustom Mody

I heard some v good reviews of tartini http://miracle.otago.ac.nz/tartini/ on the tunings yahoo list. So tried to compile and run it. So far have not managed to get it to compile on my debian squeeze The author claims that it was developed on FC6. Has someone got it to run on a linux??

13 years, 10 months

digital volume sounds better at 0 dB?

by Bearcat M. Şandor

Folks, My system is set up as follows: computer with Asus Essence ST sound card out to Trends Audio ta-10.1 amp to anthony gallo acoustics speakers. In the alsamixer console program i note that the meters turn red as you get towards the top but i think that's just a pre-set color band and isn't really telling me anything about clipping or over-driving the card. More important is the 'dB gain' indicator. Correct? I seem to hear that when the dB gain is at 0 (volume at 100%) and i've adjusted my integrated amp to the same (as far as i can tell) volume that i would have listed to with the alsamixer control at 70 (dB gain -18.00) that the sound is much fuller with better bass. My mate seems to hear that as well. Does this sound right? Could it really be that dB 0 sounds better on this card in a noticeable way or is it just a psycho acoustic trick? Are digital volume controls a "bad thing"? I think i've read that before somewhere so again, i may just be psyching myself out. Getting up to change the volume is a pain, but i might just invest (or learn how to make) an outboard volume control if it really is that much better at dB 0. Bearcat M. Sandor

13 years, 10 months

MVerb for Linux

by Dave Phillips

Greetings, Another nice reverb for LADSPA and native Linux VST : http://martineastwood.com/ Sources available under the GPL3. Best, dp

13 years, 10 months

Problems with Festige 0.4

by Mike Cookson

Hello all. I installed festige 0.4 for ubuntu with removing fst package (since it contains it's own, patched one). When launched, it gives an error: /**********************************\ $ festige Traceback (most recent call last): File "/usr/share/festige/festige.py", line 111, in <module> ladish = os.getenv(HOME)+"/.festige" NameError: name 'HOME' is not defined \**********************************/ This is actual also for other two users, one is osx-demo ( :) ), and other is for my motherm where I never work. ...But it works well under my other accont, which now I use only to have some settings (passwords, notes, etc). I can't remember/find what bad things I made. Downgrading to version 0.3 looks ugly.

13 years, 10 months

Make mno mic input be both in L an R channels

by Louigi Verona

Hey guys! Typically a mono mic would transmit a signal only on one of the channels, L or R. Is it possible to somehow make it sound on both channels, but simply duplicate the signal. It is ok for a mic to be mono, but I want it to sound from both speakers, not just from one. -- Louigi Verona http://www.louigiverona.ru/

13 years, 10 months

LV2 hosts and MIDI channel

by David Adler

hi list, I am looking for a way to let LV2 instrument plugins respond only to a certain MIDI channel. This might be possible in an integrated environment like ardour3 or qtractor - I did not investigate this since I need something like a standalone host (to add LV2 support to chino). I found the following hosts capable of loading instrument plugins: lv2_jack_host zynjacku ingen but found no way of assigning MIDI channels in either of them, they all seem to listen "omni". Ingen maybe comes nearest. I looked at all the internal objects but found no solution (e.g. their properties dialogues are incomprehensible to me). At least it allows to put several 'event inputs' that appear as separate jack-midi inputs, so I could prepend a filter. If there is no other way, I'll go that one. If I missed something and someone comes up with a simpler solution, I'd be happy as well. greetings, d

13 years, 10 months

JACK tool from Fons to check for denormals/NaN's/etc?

by Ken Restivo

I've heard it said that the first thing to deteriorate as you get old is the eyesight. I don't remember what the second thing was. I also don't remember the name of a tool that (IIRC) Fons created, which had a very simple GTK GUI, into which you can direct a JACK stream of float's, and it lights up an indicator if there are NaN's, denormals, etc etc. I know I have it here, because I've used it. But I'm staring at the contents of /usr/local/bin, and none of these appear to be it. Can anyone remind me of the name of this useful little device? I'm trying to track down the "WOW THIS IS WAY TOO F'ING LOUD" problem in Monosynth. Thanks. (Also, on a related note, it turns out from looking at the source code that MonoSynth DOES have an LFO... it just doesn't show up in the DSSI interface, sadly.) -ken

13 years, 10 months

yoshimi 0.058

by cal

Changes 0.058 all the rc5 fixes but lose the debug code;welcome Jeremy Jongepier's Dubstep bass. 0.057.2-rc5 fix a deadlock on loading instruments using PADsynth. <http://sourceforge.net/projects/yoshimi/files/> <http://www.graggrag.com/yoshimi/yoshimi-0.058.tar.bz2> cheers, Cal

13 years, 10 months

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Linux-audio-user June 2010