Linux-audio-user

linux-audio-user@lists.linuxaudio.org

2 participants
20685 discussions

Analysis of monophonic audio signals on the commandline

by Jeanette C.

Hey hey, I am looking for tools to analyse bird song. I have many recordings, which can probably be cleaned up enough to have single calls as good as isolated. On the other hand there are quite a few sonograms of bird calls, used to identify species. What I am looking for is a kind of mathematical analysis tool to get an idea of frequency and volume, perhaps with an estimate of curves. I suppose that requires statistical analysis. This is far from my forte, so I wouldn't know which keywords for the relevant math to enter and in which tool to look. Are there audio specific programs? Or is a math package like R, octave or maxima able to handle such data input and the task? If you are not immediately aware of a relevant tool, but could supply me with a few keywords and considerations, that would already be quite helpful. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c There's a girl in the mirror I wonder who she is Sometimes I think I know her Sometimes I really wish I did <3 (Britney Spears)

3 years, 10 months

Re: [LAU] Analysis of monophonic audio signals on the commandline

by bil＠ccrma.Stanford.EDU

I think what Fons says is correct. You can get close using just a sine wave and two complicated envelopes for amplitude and frequency. I did a bunch of bird songs this way back around 1980 -- see bird.scm in the Snd package. These are in Scheme using CLM, but it should be easy to grab the envelopes and use them elsewhere. The Snd package also has animals.scm: much more sophisticated attempts to synthesize birds, frogs, insects, etc. There's a brief discussion of that file in sndscm.html#animalsdoc also in the Snd package. But in any case, listen to say a hermit thrush or a red-winged blackbird slowed down and transposed down -- unbelievably beautiful! I really had a blast trying to synthesize these songs.

3 years, 10 months

qtractor build failure

by Will Godfrey

Anyone seen this build error, and if so, what's the problem? class Ui::qtractorMidiEditorForm’ has no member named ‘viewNoteNamesAction’; I'm building the current 'master' -- Will J Godfrey https://willgodfrey.bandcamp.com/ http://yoshimi.github.io Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

3 years, 10 months

kernel 5.15 irqs

by Len Ovens

In older kernels running: pa ax |grep irq will show a process for each irq in the form: 548 ? S 0:00 [irq/16-snd_ens1] however, with kernel 5.15 most of these are gone except the one for mei_me. This means that rtirq doesn't work and my device suffers from more xruns than normal. Has anyone else experienced this? -- Len Ovens www.ovenwerks.net

3 years, 10 months

jitsi-meet videoconferencing and jackd losing mic input

by Peter P.

Hi, for the last two years I was able to run the excellent and floss jitsi-meet videoconferencing tool using the jack audio server by installing the "jack" alsa plugin, and telling jitsi-meet to use it as default via my ~/.asoundrc holding the following: pcm.!default{ type plug slave { pcm "jack" } hint {description" jack with software conversions added by me" } } Since the last two or three jitsi-meet upgrades (which are hard to trace because they happen forcibly and in the background without user notification) the software will lose its microphone input a few seconds after the mic is unmuted, tracable by a vanishing audio connection in jack's gui qjackctl. When this happens I see jackd posting subgraph starting at alsa-jack.jackC.468772.0 timed out (subgraph_wait_fd=17, status = 0, state = Triggered, pollret = 0 revents = 0x0) 09:27:13.048 JACK connection graph change. **** alsa_pcm: xrun of at least 393698.976 msecs 09:27:13.052 XRUN callback (8). 09:27:13.232 JACK connection change How can I go about debugging this further? Thank you a lot! P

3 years, 10 months

[music] Let's dance (on four): disco funk with romantic piano

by Jeanette C.

Hey hey, I'd like to present let's dance (on four): https://youtu.be/mXjZJasO00M OGG version: https://www.dropbox.com/s/w3l8fy0zy5y1nq8/lets_dance-on_four.ogg This piece takes many inspirations in style and melodies, though it is not a cover of anything. The style is taken from 70s disco funk as played by the Munich Music Machine, a collecitve who cover classical pieces in their style. The piano theme is inspired by late romantic piano compositions. There are actually two small quotations from radio jingles of old (until early/mid 90s) from the public German radio station WDR4, which explains the title. Technically, LinuxSampler brings us the grand piano and the electric ones (both Rhodes and Wurlitzer) as well as the drums. The drum kit was especially assembled for this tune. The bass is courtesey of Fluidsynth and the naturally decaying bass soundfont. Yoshimi perfectly shines as a string machine. Both arpeggios and lead synths are hardware, the Behringer Neutron and Aruturia MiniBrute 2s. In terms of plugins, I had to discover a few new ones and find new uses for old horses to achieve that distinct 70s sound. Even with good raw material it took quite a bit of processing to approximate the sound to the best of my abilities. Judge for yourself... Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c Here I go, on my own now <3 (Britney Spears)

3 years, 10 months

[ANN] Qsynth 0.9.6 - A Mid-Winter'22 Release

by Rui Nuno Capela

Hi all, ** Qsynth - A fluidsynth Qt GUI Interface [1] ** Qsynth 0.9.6 (mid-winter'22) is out! Qsynth is a FluidSynth [2] GUI front-end application written in C++ around the Qt framework [3] using Qt Designer. Change-log: - Migrated command line parsing to QCommandLineParser/Option (Qt >= 5.2; by Pedro Lopez-Cabanillas). - New option to change the UI language translation. - Added DLS file type to the soundfonts selection dialog. - Fixed translations path to be relative to application runtime. Website: https://qsynth.sourceforge.io http://qsynth.sourceforge.net Project page: https://sourceforge.net/projects/qsynth Downloads: https://sourceforge.net/projects/qsynth/files - source tarball: https://download.sf.net/qsynth/qsynth-0.9.6.tar.gz - source package: https://download.sf.net/qsynth/qsynth-0.9.6-50.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qsynth/qsynth-0.9.6-50.1.rncbc.suse.x86_64.rpm - AppImage [6] package: https://download.sf.net/qsynth/qsynth-0.9.6-50.1.x86_64.AppImage - Windows package (thanks to Pedro Lopez-Cabanillas): https://download.sf.net/qsynth/qsynth-0.9.6-50.1.win-x64-setup.exe - Flatpak [7] package (thanks again to Pedro Lopez-Cabanillas): https://flathub.org/apps/details/org.rncbc.qsynth Git repos: https://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth.git https://gitlab.com/rncbc/qsynth.git https://bitbucket.com/rncbc/qsynth.git License: Qsynth [1] is free, open-source Linux Audio [4] software, distributed under the terms of the GNU General Public License (GPL) version 2 or later [5]. References: [1] Qsynth - A fluidsynth Qt GUI Interface https://qsynth.sourceforge.io [2] FluidSynth - A SoundFont Synthesizer A real-time software synthesizer based on SoundFont 2 specifications https://www.fluidsynth.org [3] Qt framework, C++ class library and tools for cross-platform application and UI development https://qt.io/ [4] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [5] GPL - GNU General Public License https://www.gnu.org/copyleft/gpl.html [6] AppImage, Linux apps that run anywhere https://appimage.org/ [7] Flatpak, next-generation technology for building and distributing desktop applications on Linux https://flatpak.org/ See also: https://www.rncbc.org/drupal/node/2315 Have fun, make some noise! -- rncbc aka Rui Nuno Capela

3 years, 10 months

Jon Appleton, a pioneer in electronic and electro-acoustic music, dies | Honolulu Star-Advertiser

by David W. Jones

https://www.staradvertiser.com/2022/02/09/breaking-news/jon-appleton-a-pion… --- David W. Jones gnome(a)hawaii.rr.com exploring the landscape of god http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail.

3 years, 10 months

[music] Heroine (soundtrack/synth/baroque)

by Jeanette C.

Hey hey, I'd like to present: Heroine https://youtu.be/rOKoHH8cuCM OGG version: https://www.dropbox.com/s/df3qm4olf2rvmjv/heroine.ogg Special mentions go to Yoshimi for superb plucks, additive synthesis and indispensible layering. Also to the Roland JV-1080 sound module for a powerful architecture, especially considering its year of birth in 1994. Add LinuxSampler, more hardware and the usual stock of great effects and we have a song. This song has two distinct inspirations: technically it is a study in fades and blends and there is still lots more to learn on that score. Musically, there was an old piece I always wanted to explore in a soundtrack like setting. The whole track works up to it, even though the master piece itself only gets a short but explicit spot at the end. Curious? I hope so. :) Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c All you people look at me like I'm a little girl. Well did you ever think it be okay for me to step into this world. <3 (Britney Spears)

3 years, 10 months

[music] Elements of synth: rain

by Jeanette C.

Hey hey, Elements of synth proudly presents: Rain Music: Staffan Melin a.k.a Oscillator and Jeanette C. Mixing: Jeanette C. Video: Staffan Melin https://youtu.be/1bVJdjytJeU Synths used: Surge, LinuxSampler with Sonatina Symphonic Orchestra (SSO) and some hardware for that extra analogue bass. :) Effects: g2reverb, Fons' 4-band parametric filter, CAPS plugins, TAP, SWH, Invada compressor. Feedback as ever is welcome. Enjoy! Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c I can't believe it's what I see That the girl in the mirror The girl in the mirror Is me <3 (Britney Spears)

3 years, 10 months

Jump to page:

2026

2025

2024

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