Linux-audio-user September 2019

linux-audio-user@lists.linuxaudio.org

40 participants
44 discussions

[LAU] [music] 50s/60s parody: at Gringo's cantina

by Jeanette C.

Hey hey, while on holiday we have recorded a simple little song, which is a 50s/60s parody in many ways, though a fine sounding one. :) https://youtu.be/h2ku70f25-Y It was recorded using mtron pro 2 software from within Ardour, processed with the Overtone DSP plugins and the video made in kdenlive, using a few of the video effects. I hope you enjoy it. Feedback is welcome. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * SoundCloud: https://soundcloud.com/jeanette_c * Twitter: https://twitter.com/jeanette_c_s * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c When you need someone, you just turn around and I will be there <3 (Britney Spears)

6 years, 4 months

[LAU] linuxaudio.org maintenance window 2019-09-10

by Jeremy Jongepier

Dear all, Tuesday September 10 I'd like to perform some maintenance on the linuxaudio.org servers between 09:00 and 12:00 CEST. Maintenance consists mainly of performing updates on the servers and booting them with the latest kernels. Downtime and impact should be minimal but if any weird things happen then please let me know at jeremy(a)linuxaudio.org. Best regards, Jeremy

6 years, 4 months

[LAU] Spatial Audio / Vinyl Study in Berlin

by Henrik von Coler

Dear lists, (German below) we are looking for participants for a user study that deals with the use of timecode vinyl for spatial sound control on Ambisonics systems. Our call is especially aimed at people who have experience with vinyl (DJing) or spatial audio technologies. The experiment will be conducted from 10.09. until 13.09. in the Electronic Studio of the TU Berlin: https://www.ak.tu-berlin.de/menue/fachgebiet_audiokommunikation/adresse_und… The test duration is about one hour and will be compensated with 10 €. For students, the experiment can also be counted as a listening test participation. If you are interested, you can make an appointment via this Doodle: https://doodle.com/poll/t3a65f8bsc8az6pz Best regards Henrik von Coler Liebe Listen, wir suchen Teilnehmer*innen für eine Nutzerstudie, die sich mit der Verwendung von Timecode Vinyl zur räumlichen Klangsteuerung auf Ambisonics-Sysemen befasst. Unser Aufruf richtet sich im Besonderen an Menschen, die über Erfahrung im Umgang mit Vinyl (DJing) oder Spatial Audio Technologien verfügen. Der Versuch wird vom 10.09. bis zum 13.09. im Elektronischen Studio der TU Berlin durchgeführt: https://www.ak.tu-berlin.de/menue/fachgebiet_audiokommunikation/adresse_und… Die Versuchsdauer beträgt etwa eine Stunde und wird mit 10€ entschädigt. Für Student*innen läss sich der Versuch auch als Teinahme am Hörversuch anrechnen. Wer Interesse hat, kann sich über diesen Doodle einen Termin sichern: https://doodle.com/poll/t3a65f8bsc8az6pz Viele Grüße Henrik von Coler -- Henrik von Coler Elektronisches Studio, Fachgebiet Audiokommunikation Electronic Music Studio, Audio Communication Group Technische Universität Berlin Fakultät I Geistes- und Bildungswissenschaften Institut für Sprache und Kommunikation Faculty I Humanities Institute of Speech and Communication Einsteinufer 17c, Sekr. EN 8, 10587 Berlin Germany Tel: +49 (0)30 314 22327 Fax: +49 (0)30 314 21143 voncoler(a)tu-berlin.de www.ak.tu-berlin.de

6 years, 4 months

[LAU] Berlin Linux Audio meeting @ c-base 2019-09-10

by Daniel Swärd

Hi all. The next meeting is on Tuesday the 10th of September at c-base. I'll be in the mainhall from 20:00. This time I'm bringing a Sensel Morph that I bought recently. Let's see what we can do with that. :-) Cheers /Daniel

6 years, 4 months

[LAU] Playing MIDI files on setBfree

by Gerhard Zintel

Dear List, I'd like to play a MIDI file using setBfreeUI but have not found any possibility. Is there a method to send a MIDI file to the already launched program or otherwise a command line parameter to let setBfree play the given MIDI file? My feeling is that setBfree is not capable to play MIDI files by its own?! thus I was looking for a simple jack-aware MIDI file player sending its output to Jack to be routed to setBfree. Any hint is highly appreciated. Another setBfree question: Can I get information of the current program that is in use? E.g. I send a Program Change MIDI message to setBfreeUI and notice that the sliders change but have no control about which program it is that is currently in use. thanks for your time Gerhard

6 years, 4 months

[LAU] Help with multichannel output

by Scott

Let me state the goal up front. I have a room with several speakers installed. It's not a traditional home theater setup; there's a subwoofer, and then 8 speakers. 8.1, if you will. It's not used for movies or other commercially recorded multitrack audio. There's also 2 computers involved; one is an older raspberry pi running the usual raspian, the other is a previous generation Intel NUC running recent Linux Mint. My goal is to be able to drive each channel independently, from my own software. I'm not trying to play movies through this setup; this is strictly a non-commercial attempt to play special effects (thunder, wind, forest noises) on demand, by starting and stopping .wav files as needed. What I have today is that the raspberry pi determines what needs to be played and when, and since it doesn't handle 9 channels of audio by itself, it sends network messages to the NUC to cue it to play some of the sounds. The pi has 4 channels of output, gotten by plugging in 2 cheap Pluggable USB external USB->stereo devices. Two channels go into the sub; the other two drive a pair of speakers. The NUC has 3 of the same cheap USB audio devices, giving six channels for the other speakers. In both cases the software is spawning (and killing) aplay and using -D to pick the stereo device to use. All that actually works fine; happily, the latency of sending messages and spawning aplay isn't a problem. In some cases the pi will decide it needs to play different audio clips to the same speaker simultaneously; I need ALSA's ability to mix inputs to a single output to keep working. (Currently my software limits things to 3 sounds at a time on any given channel.) It's important to me that when I play a sound intended to come out of the front left speaker, /it actually go to that speaker/. You can probably guess my problem: on any reboot, the cheap USB devices, which don't have serial numbers, get randomly assigned to ALSA devices. On the pi, in ALSA, sysdefault:CARD=Device and sysdefault:CARD=Device_1 both show up, but it's random which speakers they drive. Ditto for the 3 devices on the NUC. Result: when the pi decides to generate a flash of lightning in the lights on the left, the thunder comes out of the front. Or bird sounds end up in the subwoofer. Basically I'm doing it wrong. How do I do it right? Note that my recorded sources are generally all stereo .wav files; when I want sound to come out of just one speaker, I mix that sound file to put everything into one channel. That's maybe not ideal, but I'm comfortable messing with the audio files and used to thinking of the outputs as 5 groups of 2 channels each. But I'm not wedded to that and would be ok with controlling channels independently. I am fine with using either or both computers to produce sounds. Experience says that the pi doesn't handle more than two USB devices without running out of bandwidth, which is why it's currently 2 devices on the pi and 3 on the NUC. But that's changeable. I keep looking at the HDMI outputs on both these devices and wondering if that's not a total of 16 channels of audio that won't move around, that I could be using. Maybe I could dump USB entirely. But I keep reading articles online that suggest that using HDMI audio on Linux just doesn't work well? I'm trying to keep costs down. I already have the 5 USB audio devices and they work, so if I could get them to stop moving randomly I could call it done. If I have to buy different USB audio devices, or HDMI audio extractors, I want to spend $$, maybe 1$$ and definitely not $$$$. I'm willing to move the audio duties between the two computers (if the NUC can drive all 10 channels, 8 from HDMI and 2 from a single USB device, that works.) Rewriting my software isn't a problem, but the time and expense of buying hardware, trying it, realizing it won't work, having to send it back/take a loss, lather rinse repeat, is exactly what I need to avoid. I did experiment with an HDMI audio extractor once, a few years ago. When I got it to work at all I discovered that it would somehow go to sleep during periods of silence, and then when audio signal was presented, it had a "wake up" period of over a half second, during which the audio was dropped. That ruined a number of effects. I've experimented with using the headphone output on the pi. The audio quality was too low. I don't need the highest of audio fidelity for this, but the sub gets driven as low as 8Hz and the upper end is around 18Khz, and when I play crickets I want it to sound like there are crickets in the room. The pi's headphone output wasn't convincing. Basically: what do I need to buy that's known to Just Work Every Time? And will keep working for years? Level of expertise: application programming on linux, not a problem. Configuring ALSA is scary and I'd need step by step instructions. Once we get into modprobe and custom drivers I'm acutely nervous. These computers do other important things and I don't want them bricked. Solid suggestions welcome, please nothing of the "well you could try..." variety. I'm sure someone on this list has been here and done this. What did you use? TIA.

6 years, 4 months

[LAU] Sonoj Convention 2019 Announcement: Visitor registration, Call for talks, Donations

by Sonoj Convention

Dear Linux Audio Users, The second annual Sonoj Convention ( https://www.sonoj.org ) will be taking place this upcoming October 26th-27th 2019 in Cologne, Germany. The convention is focusing on the combination of music production and open source software with a priority on practical music production. At Sonoj there will be talks, demonstrations, and workshops from demonstrating basic workflows to detailed instructions on how to subtly improve your sound. While the event will take place in Germany, all presentations and workshops will be in English, recorded and streamed to make them easily accessible to a wide audience. We want to welcome everyone, regardless of your musical or technical background. To get a better idea of what to expect out of Sonoj, you can find information and recordings from last year's convention in our archives: ( https://sonoj.org/archive ) As it was last year, admission to the convention is free, though donations are very much welcome. - Visitor Registration is now possible. The space is limited so please register on our website now. ( https://sonoj.org/register.html ) - We are looking for talks, demonstrations and workshops. If you would like to contribute, please send an informal and short e-mail with your ideas to info(a)sonoj.org - Donations are very welcome. Even if you don't attend personally please consider supporting a non-profit event to promote open source music making and production. We accept direct bank transfer and paypal ( https://www.sonoj.org/donate.html ) Yours, Nils Hilbricht https://www.sonoj.org

6 years, 4 months

[LAU] Nocturnal Creatures

by Louigi Verona

Hey everyone! I am very excited to present my new album, "Nocturnal Creatures". As is usual for all of my latest ambient work, the textures and pads were created with the Linux Audio setup, using JACK, Carla, Rakarrack and Qtractor, whereas full song arrangement, automation and mixing were done with FL Studio running through WINE. The album can be streamed and purchased from Bandcamp: https://louigi.bandcamp.com/album/nocturnal-creatures If you like the album, I would greatly appreciate a review. You can also stream the album from SoundCloud. Be sure to follow! :) https://soundcloud.com/louigiverona/sets/nocturnal-creatures Cheers! Louigi Verona https://louigiverona.com/

6 years, 4 months

[LAU] user blocked

by Will Godfrey

Atte tried yo post a reply to a thread here that he'd actually started but it was rejected marked as spam. I've seen a copy and there's nothing I would have thought that could be taken as such. Has anyone else had this recently? Any ideas what he can do about it? -- 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.

6 years, 4 months

Re: [LAU] Yoshimi 1.6.0 released

by Will Godfrey

On Mon, 2 Sep 2019 09:23:35 +0200 Atte <atte(a)youmail.dk> wrote: >On Sun, 1 Sep 2019 19:44:26 +0100 >Will Godfrey <willgodfrey(a)musically.me.uk> wrote: > >> We also have a shiny new website. I've asked our web guy to make it as >> accessible as possible. >> It is at: >> http://yoshimi.github.io/ > >Website looks really good! Nice touch with the menu, that reflects the button look of yoshimi! > >One small suggestion: It's kindof standard that clicking on the logo will take you to the root of the website, a small addition, might be worth considering :-) > >Cheers Thanks for the suggestion - done now :) -- 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.

6 years, 4 months

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Linux-audio-user September 2019