Linux-audio-user January 2013

linux-audio-user@lists.linuxaudio.org

140 participants
130 discussions

by Ralf Mardorf

"So very out-of-center listener still getting all audio information... even mono ;)" This isn't the same as true mono compatibility. You'll enable that what can be heard by two speakers, can be similar heard by just one speaker. What happens if you mix the signals of the left and right channel to the center? Your Haas settings might cause a phasing. -- No good deed ever goes unpunished. Einer guten Tat folgt die Strafe auf dem Fuße!

13 years, 1 month

[LAU] Vocaloid anyone ?

by jonetsu＠teksavvy.com

Hello all, Just got into Vocaloid (Hatsune Miku, Megurine Luka) and it's kind of neat I find. Especially the megurine Luka tnes and the various Appends (Dark, Soft, etc...) For Hatsune Miku. I know nothing about this software but I know there's some open source effort in all of this, if only for composing and sharing the many songs that are made. There's as well an open source animation program (MikuMikuDance) to animate the character. Does this run under Linux at all ? Anyone tried this software here ? Thanks for any comment, cheers.

13 years, 1 month

[LAU] CFP, Beast Release 0.7.8

by Tim Janik

= CALL FOR PARTICIPATION = If you are interested in Free Software and like to tinker with interesting projects and technologies, the Beast project needs your input. Everyone can contribute with testing, feature feedback, translations, wiki edits or use case discussions. Please see the website: http://beast.testbit.eu/ = BEAST RELEASE = Christmas left a lot of time to have a run on a number of ancient quirks with the Beast code base. A number of orphan fixes are incorporated and the entire code base is ported to compile as C++11. This opens up the door for some UI, scripting and middleware improvements that have been in the queue for too long already. Before we get to that, here's what's probably the last release of the 0.7 branch with all its glory fixes. Let us know what issues you run into, we take every complaint you encounter, from UI hurdles to stability issue or regressions with old BSE files. Beast is a music composition and modular synthesis application released as Free Software under the GNU LGPL. Version 0.7.8 is available here: http://beast.testbit.eu/beast-ftp/v0.7/ Reference documentation for this version is at: http://dev.testbit.eu/beast/0.7.8/classes.html This release does away with some recently reported issues and clears our patch backlog. We'll happily take new patches. ;-) Overview of Changes in BEAST/BSE 0.7.8: * Wave oscillator fixes for 96k samples (bug #612281). [stw] * Performance improvements of the scheme shell. [stw] * Allow Alt+MouseButton1 to drag synthesis modules. * Merged plugin libraries, improved build times. * Use the ALSA 'default' PCM driver by default. * Adapt code to allow fftw drop ins. [stw] * Migrated code base to compile as C++11. * Lots of simplifications and cleanups. * Extended MIDI device listing. * Improved Beast startup time. -- Yours sincerely, Tim Janik --- http://timj.testbit.eu/ - Free software Author

13 years, 1 month

[LAU] Fluidsynth map channels to audio outputs?

by Lorenzo Sutton

So, in Fluidsynth setting synth.output-channels to a number greater than 2 will create pairs of L + R channels. Now, is there a way to map MIDI channels to audio output channels. E.g. MIDI 1 -> audio 1 & 2 The obvious advantage is the possibility for example to record into ardour on separate tracks without having to manually play over and over muting midi tracks etc. From what I understand from the manual the router is only applied to MIDI. Qsynth actually does seem to have exactly this option in Setup > Audio there is a checkbox "Multiple JACK Outputs" and the tip says "Create Multiple JACK output ports for channels, groups and effects". But selecting it has no effect, and actually overrides and ignores the Audio Channel setting. Any help appreciated. Lorenzo

13 years, 1 month

Re: [LAU] Panning based on Haas effect

by Ralf Mardorf

I experienced all Linux delays as hard to set up and I'm not sure if it was the tab echo I used. Oh, and I'm not sure if you really want a Haas effect, when you ask for panning. "How to create the Haas effect It only makes sense to create the Haas effect on a mono track. On a stereo track, you should apply a cross or normal stereo echo instead. To create the Haas effect on a mono track, follow these steps. 1. Switch on the "Cross Mode" and "Haas Effect" controls of the plugin. The "Haas Effect" switch will mute the second (right) input channel, because when applied to a mono track, the plugin receives the same mono data on both inputs and this would kill the Haas effect (this topic was discussed in the section about signal routing). 2. Set the "R/Haas Delay" time to 15-40 milliseconds. The bigger this setting, the wider the mono track will "stretch out". But if you increase the Haas delay above a certain threshold, the listener will begin to hear two separate sounds shifted in time instead of the Haas effect (which is actually the case at lower delays as well, but the feeling is something completely different). 3. Set the "R/Haas Feedback" near 100% (above 80% will do). 4. "Left Feedback" shouldn't be very large (stay below 50%) or the ping-pong delay which makes up the Haas effect will not decay in a short time, and this will create a very unpleasant sound. 5. Set the "L Delay" time as you see fit. 6. The sound of a mono track "streched out" in space with the Haas effect tends to have some directionality (the listener feels the sound source is a bit nearer to the right side than the left, or vice versa). If the sound of the track would fit into your overall mix better with the left and right sides swapped, you can do this by switching "Swap Outputs" on. 7. Mute the direct sound (set "Dry Level" to -70 dB). It is not needed in this scenario." - http://tap-plugins.sourceforge.net/ladspa/echo.html -- No good deed ever goes unpunished. Einer guten Tat folgt die Strafe auf dem Fuße!

13 years, 1 month

[LAU] Panning based on Haas effect

by Jaromír Mikeš

Hello all, I just recently found news that new digital mixing desk offers possibility to do Haas [1] based panning. [2] That led me to try found out if there is some chance do this in linux audio. I found this VST: [3] But do we have some LADSPA / LV2 plugin able to do this? Or are some DAW capable do it natively? Ardour Qtraktor ? regards mira [1] http://en.wikipedia.org/wiki/Haas_effect [2] http://www.innovason.com/news-events/news/pandora.html [3] http://www.vescofx.com/vfxFreeHaas

13 years, 1 month

[LAU] Fedora Jam

by Brendan Jones

Hi all, a quick announcement to alert all to the fact that the Fedora Jam audio spin is now available. It is not documented and/or linked on the "Official" spins page due to the same reasons that delayed the core Fedora release as a whole [1]. However, you can grab a copy of the latest iso here [2]. IWe have tried to deliver the latest versions of all projects out there, but of course there are a number of release bumps over the Xmas period that we might have missed. Feel free to raise a bugzilla and we'll get on top of it. In the coming months my focus is still on promoting as many new LV2 projects as I can. I expect triceratops and minator to land soon. If anyone knows of any other projects that we may have missed please let us know. If developers want to expand their testing audience, please let me know and I'll make these projects available in rawhide. The Fedora Musicians guide has also been published, always a work in progress so we warmly welcome any comments/additions. [3] kind regards Brendan [1] http://fedoraproject.org/wiki/Fedora_jam [2] http://alt.fedoraproject.org/pub/alt/nightly-composes/ [3] https://docs.fedoraproject.org/en-US/Fedora/18/html/Musicians_Guide/index.h…

13 years, 1 month

[LAU] caps-lv2 0.9.7 (was [ann] CAPS 0.9.5)

by Bruno Gola

Hello! We are working on porting CAPS to LV2 and we've just pushed the 0.9.7 version to github. you can check it at: http://github.com/portalmod/caps-lv2/ We simply modified some basic files, so it's easy to keep in track with upstream changes. For more info about the port you can read the PORT section of the README.md file. Any bugs or troubles regarding the lv2 port please send to this mailing lists or to the repository issue tracker. Hope you enjoy :) On Wed, Jan 16, 2013 at 9:14 AM, Tim Goetze <tim(a)quitte.de> wrote: > This release of CAPS, likely to be the last for some time unless major > bugs surface, brings > > * performance and sound improvements for AmpVTS, > * selection of peak or RMS measurement in Compress, > * 4x128 saturating mode for Compress, > * 2x,4x and 8x oversampling for AutoFilter, and > * more filter types for AutoFilter. > > The bug in 0.9.4 that rendered the AmpVTS tonestack selection control > inoperative has been rectified. > > Probably appreciated only by its author or other digital > palaeontologists, the CabinetIII plugin has been reintroduced. > CabinetIV is still recommended over it because of the wider range of > models, sample rate independency and lesser computational demands. > > Sample rate dependencies have been removed from NoiseGate, and its > attack time is now configurable. > > http://quitte.de/dsp/caps.html > > http://quitte.de/dsp/caps.html#AmpVTS > http://quitte.de/dsp/caps.html#Compress > http://quitte.de/dsp/caps.html#AutoFilter > http://quitte.de/dsp/caps.html#NoiseGate > _______________________________________________ > Linux-audio-dev mailing list > Linux-audio-dev(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-dev -- Bruno Gola <brunogola(a)gmail.com> http://bgo.la/ | +55 11 9-5552-3599

13 years, 1 month

[LAU] linuxaudio.org seems to be down

by Ralf Mardorf

$ ping www.google.de PING www.google.de (173.194.69.94): 56 data bytes 64 bytes from 173.194.69.94: icmp_seq=0 ttl=50 time=33.754 ms 64 bytes from 173.194.69.94: icmp_seq=1 ttl=50 time=34.033 ms 64 bytes from 173.194.69.94: icmp_seq=2 ttl=50 time=33.031 ms ^C --- www.google.de ping statistics --- 3 packets transmitted, 3 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 33.031/33.606/34.033/0.422 ms $ ping www.linuxaudio.org PING www.linuxaudio.org (198.82.152.114): 56 data bytes ^C --- www.linuxaudio.org ping statistics --- 19 packets transmitted, 0 packets received, 100.0% packet loss -- FreeBSD 9.1-RELEASE amd64

13 years, 1 month

[LAU] get ur chords

by Rustom Mody

This was just announced on the haskell list http://chordify.net/chords/passenger-let-her-go-official-video-passengermus… Explained here http://chordify.net/pages/how-to-use-chordify/ -- http://www.the-magus.in http://blog.languager.org

13 years, 1 month

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Linux-audio-user January 2013