Linux-audio-user November 2017

linux-audio-user@lists.linuxaudio.org

48 participants
40 discussions

Sonoj Convention 2017 Media Follow-Up

by info＠sonoj.org

Dear All, The Sonoj Convention 2017 is now over. I can't believe it all just worked out like this; "Call, and they shall come." The video recordings are here: https://media.ccc.de/c/sonoj2017 Or mirrored on youtube: https://www.youtube.com/channel/UCRETFHZgyoUMyUxz3k9lrZA/videos The musical results of our challenge (make a one minute track integrating a telephone ring sample) are either on archive.org as individual tracks: https://archive.org/details/Sonoj2017CompositionChallenge or you can download them all at once. License CC-By-SA: https://www.sonoj.org/sonoj2017challenge.tar.gz Yours, Nils, for the Sonoj Convention

5 years, 10 months

How to get aubio commandline tools?

by James Harkins

Hi, Ubuntu Studio 16.04. Was looking for tempo estimators. I see online: https://aubio.org/manual/latest/cli.html#manpages `` NAME aubio - a command line tool to extract information from sound files COMMANDS ... tempo get overall tempo in bpm `` So I installed python-aubio (which was already installed, I think for pd) and aubio-tools. Then: $ which aubio (nothing) Does anybody know what's up with that? The one thing I could think is that the commandline tools are new (documentation is for 0.4.5), but xenial ships 0.4.1. In which case I'd try building myself. Or, any other tools for tempo estimation? I tried BeatTrack in SuperCollider, but it's based on a 1024-point FFT; with overlap=2, its timing resolution would be limited to 512 samples (and I found, in fact, that it would oscillate between two values, as if occasionally correcting for timing inaccuracy). Thanks, hjh

5 years, 10 months

Sonoj Convention Video Livestream URL

by Sonoj Convention

Hello Lists, Tomorrow and the day after is the Sonoj Convention! You can watch the live video stream when it starts 10:40 CET and see all the talks! https://streaming.media.ccc.de/sonoj2017 Please share that link in all the forums and social media where you think it is appropriate. For more information and a schedule please see https://www.sonoj.org Nils for the Sonoj Convention

5 years, 11 months

Control iPad synth

by Oliver Heck

Hi, I wonder if it is possible to control an iPad synth app like Animoog from a DAW running on Linux (something like you would do with the iConnect MIDI 2 on Win/Mac systems). I am running Bitwig 2.2 on Linux Mint 18.1 Serena. I use the Allen & Heath ZED10FX as class compliant USB device. Cheers, Oliver

5 years, 11 months

Re: [LAU] Control iPad synth

by Ralf Mardorf

On Thu, 2 Nov 2017 20:18:23 +0100, Oliver Heck wrote: >So you recommend to buy a good quality 500$ audio card in combination >with a 7€ CCK? ;-) Yes, I do. Where do you think are the original Apple products made? The quality of a Chinese fake could be better than the original Apple product. If somebody should have bad luck, than it still was worth to pay a few €, before buying an Apple original product. If somebody wants to spend that much money, than better directly get 30pin to USB, https://www.thomann.de/gb/iconnectivity_iconnect_midi_30_pin_ios.htm I tested one, it works but doesn't work better than the cheap CCK, so I gave it back to the dealer. Btw. the Focusrite's Scralett line also provides cheaper audio interfaces. >I already own the original Apple CCK which is for sure overpriced like >everything from them but on the other hand it has been working fine >for the last 3 years, and I am using it frequently. My Chines CCK works, too. >BTW: A friend of mine used a china power supply that exploded while >charging in my kitchen and flew out of the wall socket like a cruise >missile. Luckily nobody was hurt and her iPhone survived, too. Adapters and cables don't include anything that could explode. Btw. my original iPad's charge cable jacked is made from plastic that crumbles, the Chinese replacement is already old, too, but doesn't suffer from such a bad jacket.

5 years, 11 months

First International Faust Conference (IFC-18) - Call for Papers

by Romain Michon

Dear all, It is my pleasure to announce the First International Faust Conference (IFC-18)! We look forward to see you in Mainz this summer. Cheers, Romain Michon CCRMA, Stanford University [Apologies for cross posting, please circulate widely.] 1st International Faust Conference - Johannes Gutenberg University, Mainz (Germany), July 17-18, 2018 The International Faust Conference (IFC-18: http://www.ifc18.uni-mainz.de) will take place at the Johannes Gutenberg University <http://www.uni-mainz.de/> of Mainz (Germany) on July 17-18, 2018. It aims at gathering developers and users of the Faust programming language <http://faust.grame.fr/> to present current projects and discuss future directions for Faust and its community. Participants will be able to share their work through paper presentations. A series of round tables on various topics will serve as a platform to brainstorm on Faust's features, semantics, tools, applications, etc. to determine future directions for this language. Open spaces for demos and workshops will be available for participants to openly share their ongoing projects with the rest of the community. As a special event, the winner of GRAME's Faust Open-Source Software Competition will be announced during IFC-18. IFC-18 is free and everyone is welcome to attend! *Call for Papers* We welcome submissions from academic, professional, independent programmers, artists, etc. We solicit original papers centered around the Faust programming language <http://faust.grame.fr/> in the following categories: - Original research - Technology tutorial - Artistic project report (e.g., installation, composition, etc.) Paper should be up to 14 pages in length, non anonymous, and formatted according to this template <http://www.ifc18.uni-mainz.de/misc/IFC-18-templates.zip>. *Submissions should be carried out via our EasyChair portal <https://easychair.org/conferences/?conf=ifc18>*. All submissions are subject to peer review. Acceptance may be conditional upon changes being made to the paper as directed by reviewers. Accepted papers will be published on-line as well as in the IFC-18 proceedings paper version. They will be presented by their author(s) at IFC-18 as 15 minutes presentations (+ 5 minutes for questions). Feel free to contact us if you have any question. *Important Dates* - Papers submission deadline: March 2, 2018 - Notification of Acceptance: May 1, 2018 - Camera-Ready Version: June 1, 2018 *Call for Round Table Topics* A series of round tables on the following themes will take place both afternoons of IFC-18: - Faust Tools (e.g., Architectures, IDE, Faust Code Generator, On-Line Services, etc.) - DSP in Faust and Faust Libraries (e.g., New Algorithms, New Libraries, Missing Functions, etc.) - Faust Compiler and Semantics - Other Topics/Open Session We solicit topic suggestions from the Faust community for each of these themes. Topics can be submitted by means of this Google form <https://goo.gl/forms/0fBYxk28jlRdtqRM2>. They will be introduced during the round tables by the session chair. *Contact* Please, address your questions to: ifc18(a)muwiinfa.geschichte.uni-mainz.de Conference website: http://www.ifc18.uni-mainz.de

5 years, 11 months

Ardour snapshots

by Brent Busby

Recently, I recorded some additional tracks into an Ardour session, and the new tracks turned out great, but some levels were changed on some of the already existing material that shouldn't have been changed, and I'd like to get my old levels back. I never created a snapshot in Ardour before these fader level changes. Fortunately, my machine makes backups every night, and I have a copy of my old project folder from backups. It's thus possibly to use rsync to zap my whole project folder back to the way it was before, get my levels, and then zap it back to its new state again. I was just curious though: Is it possible to use the .ardour and/or .history files from my old backed up folder to get the snapshot I should have made? Is it possible to recover these files, copy them into the new state of my folder, and use them as snapshots without changing a lot of other things? The reason I ask is because snapshots behave a lot like Ardour session files. (I haven't dived into the internals; maybe they are Ardour session files?) -- - Brent Busby + =============================================== + With the rise of social networking -- Studio -- + sites, computers are making people -- Amadeus -- + easier to use every day. ----------------+ ===============================================

5 years, 11 months

Best practices when using jackd over a LAN.

by David Woodfall

Hi I have been using jackd to play music from my laptop -> server -> hifi. It works well apart from I will get dropouts in the audio now and then. I have been looking at the options for client and server and trying all sorts of things to try to fix the dropouts, but I can't seem to cure the problem. My laptop is connected via cable rather than wifi. NIC on laptop: Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) NIC on server: Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express (rev 21) Jackd command on laptop: set_rlimits /usr/bin/jackd -dnetone -n60 -I0 -O0 -r44100 Jackd command on server: set_rlimits /usr/bin/jackd -P 10 -p128 -t10000 -dalsa -dhw:DGX,1 -r48000 -p128 -n3 -P -I32 jack_netsource -H raven -r50000 -n1 -i2 -o2 -I0 -O0 I've been trying out different latency settings on server and client, but they either don't make any difference, or jackd refuses to start. Any ideas for getting rid of dropouts/xruns on the network? Dave

5 years, 11 months

html5 in ff through jack

by Peter P.

Hi list, I have been search the archives and the web a bit and it seems there is no easy way to route html5 audio playback from firefox through jack on Debian testing. Is this still the case or has there been recent development that might enable it? What would have to be done to make it work? This functionality is the last piece in my puzzle to finally get rid of flash. thanks for pointers, P

5 years, 11 months

Re: [LAU] Best practices when using jackd over a LAN.

by Len Ovens

On Tue, 31 Oct 2017, David Woodfall wrote: > I have been using jackd to play music from my laptop -> server -> hifi. Have you also tried zita-njbridge? It has been some time since I tried netjack (or zita-njbridge). At least one machine upgrade... Also, you may want to look into open AVB which has jack to jack capability and with the right nic will allow your audio stream to have priority over other network traffic. But it is more to set up. In any case, if there is more than one audio card some resampling will have to happen (even with AVB with most consumer AIs). In the case above, your hifi will have to be master I am not sure in that case why there would be a server in the middle, but it looks like you have the server getting it's sync from the hifi and then the laptop gets it's sync from that? Is the network used for other things besides sound? Is audio traffic prioritized? In all machines? In any switches? Looking into AVB and or AES67 and the requirements for no dropout sound may be helpful. Netjack is designed for single hop, no other network traffic, no switch, audio transport. zita-njbridge is designed to handle switches and some other traffic a bit better. The standard streamers like icecast, etc. use long latency end to end (500ms or more) to avoid dropouts. So in the end you have to choose your own priorities in sound quality and latency as well as how much money you want to spend and how much time setting it up. -- Len Ovens www.ovenwerks.net

5 years, 11 months

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-user November 2017