Linux-audio-user

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20706 discussions

[LAU] Using Linux as an active crossover - and more!

by Michael Jarosch

Hi! Using linux + ladspa should make it easy building signal processors like the DBX DriveRack or similar devices… Unfortunately, I don't know professional grade audio devices offering 2 balanced (XLR) input and >4 (preferable 6) balanced (XLR) output ports. Does anyone know? Greets! Mitsch

5 years, 10 months

[LAU] Yoshimi 1.7.1

by Will Godfrey

This was released today. In brief: One instantly noticeable feature is a new 'Pan Law' entry in the main window. There is a new channel based setting for Solo. Another quite new development is both Channel and Key aftertouch. Legato performance has been improved and made smoother. There is a new waveform shape available to AddSynth and PadSynth. Storing and recovery of GUI window positioning has been improved. Instrument banks have also had a workover with added proctections. The underlying code continues to be refined and improved. More details are in /doc/Yoshimi_1.7.1_features.txt Yoshimi source code is available from either: https://sourceforge.net/projects/yoshimi Or: https://github.com/Yoshimi/yoshimi Full build instructions are in 'INSTALL'. Our list archive is at: https://www.freelists.org/archive/yoshimi To post, email to: yoshimi(a)freelists.org -- 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.

5 years, 10 months

[LAU] AMD Ryzen Processors for Linux audio

by Moshe Werner

Hi everyone, I am thinking of upgrading my audio PC/Laptop, and heard a lot of good things about AMD's Ryzen series, specifically Ryzen 5 3600. But when regarded pro audio work some people in the usual forums tend not recommend AMD, because of latency issues. Are there any Linux users successfully using Ryzen CPUs for low latency work? If so what is your recommended setup? FYI I'm using Manjaro XFCE on my laptop and Manjaro KDE on my desktop. Audio interfaces are Motu 1248 and RME HDSP9652. Would be great to hear your experience. Best regards Moshe

5 years, 10 months

[LAU] Music?

by Will Godfrey

It seems quite a while since i put any of my efforts up on here. This one is another of my {cough} extended {cough} developments. https://soundcloud.com/soft-sounds/reflections-1991-2020 -- 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.

5 years, 10 months

Re: [LAU] Input to aplay to make a file instead?

by John Murphy

On Sun, 19 Apr 2020 12:29:37 +0200 al3xu5 / dotcommon wrote: > Sat, 18 Apr 2020 09:50:30 +0100 - John Murphy <rosegardener(a)freeode.co.uk>: > > > I use a program which plays regions of various .wav files. Its > > output pipes into aplay like: '| aplay -f FLOAT_LE -c 2 -r 48000' > > > > To where can I pipe its output, instead, to make a new .wav file, > > or make a compressed file? Preferably faster than the region(s) > > take to play. > > > > Or, if not, make aplay write to a file instead of playing? > > > > Thank you. > > > Use sox: > > sox source.wav -L -c 2 -r 48000 new.wav trim <start_second> <duration_seconds> > > where: > > -L : little endian > -c 2 : 2-channels stereo > -r 48000 : freq (Hz) > <start_second> : region start (second) > <duration_seconds> : region duration (seconds) > That works a treat. Thank you. sox works so much better when it has an actual file as input that it works just as well without -L -c -r As the region lines I get give the start and end positions, I can use '=' before duration and give it the end position directly like: REGION "Fri0304.wav" 00:00:01.14181 00:00:05.07359 works in sox like: sox Fri0304.wav new.wav trim 1.14181 =5.07359 $ soxi new.wav Input File : 'new.wav' Channels : 2 Sample Rate : 48000 Precision : 16-bit Duration : 00:00:03.93 = 188725 samples ~ 294.883 CDDA sectors File Size : 755k Bit Rate : 1.54M Sample Encoding: 16-bit Signed Integer PCM I should be able to write a script to get the filename and start/end seconds from the region lines and tell sox what to do. Many thanks and best regards to all who have responded. I'll be fine now and I may even try some of the other ways, because they're there. :) -- John.

5 years, 10 months

[LAU] Input to aplay to make a file instead?

by John Murphy

I use a program which plays regions of various .wav files. Its output pipes into aplay like: '| aplay -f FLOAT_LE -c 2 -r 48000' To where can I pipe its output, instead, to make a new .wav file, or make a compressed file? Preferably faster than the region(s) take to play. Or, if not, make aplay write to a file instead of playing? Thank you. -- John.

5 years, 10 months

Re: [LAU] Input to aplay to make a file instead?

by John Murphy

On Sat, 18 Apr 2020 11:53:35 +0100 Bill Purvis wrote: > On 18/04/2020 11:05, John Murphy wrote: > > On Sat, 18 Apr 2020 09:55:12 +0100 Will Godfrey wrote: > > > >> On Sat, 18 Apr 2020 09:50:30 +0100 > >> John Murphy <rosegardener(a)freeode.co.uk> wrote: > >> > >>> I use a program which plays regions of various .wav files. Its > >>> output pipes into aplay like: '| aplay -f FLOAT_LE -c 2 -r 48000' > >>> > >>> To where can I pipe its output, instead, to make a new .wav file, > >>> or make a compressed file? Preferably faster than the region(s) > >>> take to play. > >>> > >>> Or, if not, make aplay write to a file instead of playing? > >>> > >>> Thank you. > >>> > >> Use arecord instead. > >> > > Thanks. I saw the -C switch (or arecord), but didn't try it because [...] > You should be able to use sox to do that, specify the input format, and > an output format and it should sort it out. I've not done this for ages, > but it's the sort of thing sox was created for. > > Bill > Looks promising, thanks: SoX can be used in simple pipeline operations by using the special filename `-' which, if used as an input filename, will cause SoX will read audio data from `standard input' (stdin) Can't quite do it though. aplay gets -f FLOAT_LE -c 2 -r 48000 I've tried: | sox -t raw -r 48k -c 2 -L -e float - dump-SOX-test.wav sox FAIL formats: bad input format for `-': data encoding or sample size was not specified | sox -t wavpcm -r 48k -c 2 -L -e float - dump-SOX-test.wav sox FAIL formats: can't open input `-': WAVE: RIFF header not found I'm guessing though really. -- John.

5 years, 10 months

[LAU] Results of an Online Open Source Music "One Hour Challenge"

by Christopher Arndt

(With Nils Hilbricht's permission I'm re-using his post on linuxmusician's.com [1] in slightly altered form.) Hi, instead of a monthly real-life meeting in Cologne, Germany, the contact restrictions due to Corona forced us to do our yearly "One Hour Challenge" online. The challenge took place yesterday evening 19:00 CST via a BigBlueButton video conference for organization and an Icecast stream for listening to the results together afterwards . I want to present the musical results to you. https://sonoj.org/challenge/#osamc_2020_04 Provided was a .wav file, unknown to the participants until right before the start, and we had to make music with or around the whole or parts of the sample. (Sample is available to you at the link as well). We had only one hour, afterwards we needed to upload an audio file. Then we voted. Ten people submitted music, more visited our video conference and voted. I find it quite impressive what it is possible in just an hour! What do you think? Chris [1] https://linuxmusicians.com/viewtopic.php?f=9&t=21324

5 years, 10 months

Re: [LAU] [Music] Narzissus

by Susanne Schneider

thanks a lot Will :-) yes, we are also big PF fans! best Suse > Message: 2 > Date: Mon, 13 Apr 2020 20:17:12 +0100 > From: Will Godfrey <willgodfrey(a)musically.me.uk> > To: linux-audio-user(a)lists.linuxaudio.org > Subject: Re: [LAU] [Music] Narzissus > Message-ID: <20200413201712.06108e45@devuan> > Content-Type: text/plain; charset=US-ASCII > > On Mon, 30 Mar 2020 22:55:20 +0200 > Susanne Schneider <suseguitar(a)mailbox.org> wrote: > >> hello all, >> I'd like to share my band's first musicvideo "Narzissus": >> >> https://www.youtube.com/watch?v=ug_LlsHwL4g >> >> I did the audiomix in Ardour, assisted by: >> Calf Plugins, >> IR by Tom Szilagyi >> Spectrum Displays by Robin Gareus >> >> and for creating the video I used Kdenlive >> >> comments welcome :-) >> >> best >> suse > Well it took me a while to get here :) > Very much enjoyed this. Good song, nicely performed. Did I detect a hint of > Pink Floyd influence in the latter part? > Vid is well put together too. >

5 years, 10 months

[LAU] ANN: Quarterly Release Pact April 2020 Edition

by Christopher Arndt

Dear Open Source Audio Users and Devs, as some of you might have been aware of, there is an ongoing effort in the Open Source audio software developer community to provide regular releases of Open Source audio software on the 15th of the first month of every quarter. The second instance of this in 2020 is now upon us on this April 15th. To give the software releases, which are announced on this day (and a few days before and after) a bit more publicity and provide some sort of focal point, I created a web site, which collects all these announcements: https://libremusicproduction.com/dev/release/ Please share this website wherever it may reach the target audience and, if you are a developer yourself, see the "About" link on that page to find out how your release can be listed there too. Share & Enjoy, Chris

5 years, 10 months

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