Linux-audio-user

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20662 discussions

by Neil C Smith

Hi, Apologies for tardy response - handling aftermath of a hard drive failure. :-\ On 14 May 2015 at 21:37, Michael Jarosch <riotsound(a)riotmusic.de> wrote: > Looks great! I haven't done much video in my projects, yet, and - > speaking about (jack-)audio - I don't know if Praxis LIVE would fill the > gap, Praxis LIVE's audio pipeline has JACK support through JNAJack (which was originally written for it). There are a couple of things to bear in mind though - 1. Praxis LIVE is Java-based which *may* have an impact on latency (see 2) 2. It's not currently possible to play the audio from a video track. This is somewhat complicated by Praxis LIVE's distributed architecture, and the fact that audio and video may be in different processes or even running on different machines. Incidentally, one use for running audio in a separate process is reducing garbage-collection effects and improving latency. > By the way: Does Praxis LIVE feature projection mapping? It's just > because you mentioned Isadora... Not like Isadora v2 does. However, the recently released Praxis LIVE v2 does have full access to the 3D capabilities of the underlying Processing renderer. Coupled with the new custom code infrastructure and the ability to (re)write components on-the-fly this gives lots of possibilities for projection mapping and 3D transforms. There's a simple 3D quad transform component in the custom component repository already - https://github.com/praxis-live/pxg Expect to see more in the near future. There's a blog post on turning a Processing sketch into a Praxis LIVE component (here rendering a video onto a cylinder) - https://praxisintermedia.wordpress.com/2015/04/01/transform-a-processing-sk… Also coming soon is wrapping Processing's OBJ file loader. Bringing this vaguely back on-topic for this list - one of the reasons I haven't announced Praxis LIVE v2 here yet is I'm still finalising live code rewriting for audio components. Best wishes, Neil -- Neil C Smith Artist : Technologist : Adviser http://neilcsmith.net Praxis LIVE - hybrid visual IDE for live creative coding - www.praxislive.org Digital Prisoners - interactive spaces and projections - www.digitalprisoners.co.uk

10 years, 6 months

Oddity about Ardour package in Debian Sid

by david

The package is still called "ardour3" but says the latest version is "4.0-dfsg-1". What's up with that? Shouldn't it be ardour4???? -- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com

10 years, 6 months

f/loss software DJ mix

by Alex Norman

A DJ mix I made was blogged today: http://tmblr.co/ZxyKor1ktgoN9 https://soundcloud.com/bed_of_roses-1/bed-of-roses-podcast-xviii-xnor I used software I wrote. Linux, Jack, Calf eq... f/loss! The project is called DataJockey and is available here: https://github.com/x37v/datajockey xnor/Alex

10 years, 6 months

Released Csound voice processing UDOs

by F. Silvain

Hey hey everyone, sorry for cross posting. I released a set of three Csound User Defined Opcodes today. A pitch correction (autotune style), a channel vocoder (using an FFT-based technique) and a free pitching module, that pitches a voice - whichever pitch it has - to the MIDI notes received. All opcodes tested with Csound version 6.05, but should work on version 6.0. https://freeshell.de/~silvain/cs_voice_processing-0.5.tar.bz2 I've tested them live on a 3 gHz CPU running a Linux commandline. With a hardware sample buffer (-B option) of ifftsize they work in realtime. Any feedback and improvements are welcome! Thank you. Ta-ta ---- Ffanci * Homepage: https://freeshell.de/~silvain * Twitter: http://twitter.com/ffanci_silvain * GitHub: https://github.com/fsilvain

10 years, 6 months

Jimson Drifts double attack ;)

by Gerald

Hi Guys, I've got a double announcement to make: First one: We've got a new Song, Sailing Sister. Check it out: www.jimson-drift.de under Songs. If your in the Rhein-Neckar area in June, we've got an upcomming gig on June the 18th at the Kulturfenster in Heidelberg (www.kulturfenster.de) Second one: GuitarSynth is now an lv2 plugin. Yep, it's true, thanks to falktx's DPF. You can get it at https://github.com/geraldmwangi/GuitarSynth-DPF. Have fun testing it and give me your thoughts. Cheers Gerald

10 years, 6 months

John Option: Where is my car? - New song and new Ardour project available

by Massimo Barbieri

Hi, today we have published the video of another single of John Option: Where is my car?. The song is published under the terms of the Creative Commons License (CC-BY-SA) and it's completely produced with free software: Ardour, Hydrogen, Jack, Qsynth, CALF, and many other great free audio software that we used under Debian GNU/Linux. Here you can listen the single and see the video (made with kdenlive): https://youtu.be/mj3qrMQZIHk As for the previous songs we have done a little more in the direction of freedom and we published in our website[1] the single recording tracks and the complete Ardour session. All this material is published under the terms of the Creative Commons license Attribution Share alike so that anyone can use our tracks to produce a remix of our song or even a new song that have to be published under the same license. You can find all about our project here: http://johnoption.org I hope that you like our choice of freedom. If you feel like I'd love to read your feedback, because the encouragement of the people who listen to us and appreciate the philosophy of our project is the only fuel for us to continue. And if you like to be updated about our next release, please subscribe to our YouTube channel or any other social network you like (see link to our profiles on our website[1]). Best regards, Max-B 1. http://johnoption.org -- IM: massimo(a)jabber.fsfe.org - GnuPG Public Key-Id: 0x5D168FC1

10 years, 6 months

Latency tests (not really... it's music)

by Lorenzo Sutton

So I was doing some latency tests with jack and realtime kernel... But the email isn't related to kernel, hardcore realtime settings, etc. Sorry :-) Wile testing I hooked an old Pd patch I had which simply generates random pentatonic notes to Yoshimi. Totally forgot of the tests I had planned, added just a bit more randomness, added just a bit more release to a couple of yoshimi voices and this came out (yes also some (lots of) reverb). https://soundcloud.com/lorenzosu/latency-test-random-pentatonics-with-pd-an… I'm always rather impressed by the sound palette and control Yoshimi offers... Lorenzo. PS: Overall no massive xruns so latency looks good for now - :-)

10 years, 6 months

mcpdisp 0.0.1

by Len Ovens

For those of you who use a bcr2000 or other control surface with no display and miss the 55x2 display that the Mackie Control has. This utility provides that display. It can fit quite nicely at the bottom of the screen under the Ardour mixer or editor window. http://www.ovenwerks.net/software/mcpdisp.html This the initial release on which I learned how to use the jack ring buffer. I use this with my $3 midi controler http://www.ovenwerks.net/hardware/index.html -- Len Ovens www.ovenwerks.net

10 years, 6 months

Focusrite Saffire Pro 40 - reliable?

by Ben Bell

Hi all, My dual Delta 1010 setup is on its last legs and I'm thinking (again) of retooling with a Saffire Pro 40. I've been bitten in the past by upgrades like this which is why I'm still on the 1010s, but there's only so many times I can repair them before I have to admit defeat. Is anyone out there actively using a Saffire Pro 40 in a serious setting? Is it reliable for low latency, with all channels working at once? Does it work with any recent ffado, or do you need specific versions, patches or anything else? I've read plenty of vague comments about which firewire chipsets might be good or not, but are there known-good PCI Express firewire cards that are a sensible price and work well? I'm really hoping for "Yes, I've been using one for a year and it's rock solid," rather than "I've googled and it claims to be supported," or "Yes, it's fine if you pull the latest beta7 branch from git and only use Acme 2000 firewire interfaces." Sorry to sound unduly cautious or skeptical ;) In short, if I bite the bullet, retire my Delta 1010s and buy a Pro 40, are the drivers and tools now at the stage where I reasonably expect to be up and running again in a day rather than still fighting problems a week later? Cheers, bjb

10 years, 6 months

First multitrack project: midi tracks and plugins

by Ivan K

I have a 5 minute four channel midi file that I essentially want to orchestrate and add a spoken audio track to, and perhaps add a few other audio tracks. I first began experimenting on this file with qtractor. One thing I would like to do is to switch plugins on the same midi track. That is, say one particular midi track is first synthesized with plugin x, and then the next region of the same track is synthesized with plugin y, etc. After working with the qtractor and searching the web, I am pretty sure that qtractor cannot do this. And so now, I have begun working with Ardour. Is Ardour capable of using different plugins for different regions of the same midi-track? I realize I can copy portions of an original midi-track to another track and thus, achieve the same effect, but for organizational reasons, I think I would prefer to not do this as my project may expand to more midi tracks than I could personally keep track of. Or is switching plugins on the same midi track something people generally do not do, and if you feel you need a different timbre at a particular place, is the preferred method just to create a new track? Thank you for listening to my perhaps naive questions.

10 years, 6 months

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Linux-audio-user