Linux-audio-user

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20641 discussions

consolidating a firewire sound card with my other existing pci (alsa) soundcards

by Athanasios Silis

Hi all, I have recently acquired a Focusrite SaffireLE (analog: 4ins & 6 outs, firewire) and I am trying to figure out how can I consolidate its analog ins/outs with the rest of my setup: The same audio server hosts other soundcards that are happily driven by alsa. so JACK can see all the rest of the sound cards (through zita-a2j, etc). Now comes the firewire card. If I start a separate jackd session with the firewire backend jackd -R -n firejack -dfirewire then I get to see 6 ins and 8 outs (digital in/out included). I have 2 problems with this setup: - how do I connect the 2 jack sessions (with 0ms latency if possible). I tried with zita-n2j but with anything less than 100ms buffer the sound is unbearably choppy. - I tried to route some audio stream to each one of the outputs but from some outputs I could not get any sound, then routing to out1,2 would play from physical outs 3,4 - so not ideal. I tried to use the ffado-mixer to fiddle around with routing , but did not manage anything. Then I thought, to use the alsa driver , since alsa "sees" the card normally. $ cat /proc/asound/cards 6 [SaffireLE ]: BeBoB - SaffireLE Focusrite SaffireLE (id:2, rev:1), GUID 00130e010004184f at fw1.0, S400 but aplay only registeres a single PCM device: $ aplay -l card 6: SaffireLE [SaffireLE], device 0: BeBoB [SaffireLE PCM] Subdevices: 1/1 Subdevice #0: subdevice #0 so this is not ideal. IS there a way to get the alsa driver to identify all the ins and outs ? Alternatively, is there a better way to use a single jack session and load the 2nd backend as well ? (maybe through audioadapter or otherwise) Finally, is there a chance to coordinate 2 jack sessions (each with one of alsa, firewire backends) with 0 latency between them ? In this setup does anyone have experience with SaffireLE and how to control the mixer? Thank you!

4 years, 3 months

Motu M64 Madi interface (not) class compliant?

by Peter P.

Hi list, I am wondering if the Motu M64 Madi audio interface is class compliant or not. The only information I found so far is Paul Davis mentioning it was not on https://discourse.ardour.org/t/usb2-3-madi-adat/88392/13 Nevertheless I plugged one in today and was able to select it as a device in qjackctl but did not get jackd to start using it. I had very little time and forgot to take logs and messages. thanks for all hints! P

4 years, 3 months

A bit of a puzzle

by Will Godfrey

In either Yoshimi or ZynAddSubFX, is anyone making use of the Eq.T. (Equal Temperament variation) control. If so, what are you using it for? It really is a very strange thing. -- 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.

4 years, 3 months

Holographic (completely open source music)

by Louigi Verona

Hey everyone! Presenting a tune called "Holographic". I referred to it as completely open source music, because it was written with an open source tracker (OpenMPT) and is released as an IT file, which means you can open it in any Impulse Tracker compatible program and actually see exactly how it was made, down to every note. You can listen with the online player or download: https://modarchive.org/index.php?request=view_by_moduleid&query=191588 Louigi Verona https://louigiverona.com/

4 years, 3 months

[ANN] MusE 4.0 released

by Robert Jonsson

It is with great joy we present to you the final release of MusE 4.0. A great many things have been added and improved since the last stable release, nine months ago. To give a rather useless metric about the amount of work that has gone into MusE 4.0, our code repository has had more than 700 commits since the release of MusE 3.1.1! Here is an extremely condensed list of the most important changes since 3.1.1: * The core feature of 4.0 is the redesigned user interface with a huge amount of quality of life improvements. - Tabbed UI with Docks for common utility editors like Marker List, Mastertrack List and Event List. - All new dark theme with a lot of graphical improvements including lots of icons reworked in vector format. - Many new toolbars for quick access to common operations. - A lot of menu operations now list their related keyboard shortcut. - Many new keyboard shortcuts. * We now have an AppImage for easy installation on all distributions, both for releases and the bleeding edge development version. * Many many other fixes and improvements. For the complete list of changes see: https://github.com/muse-sequencer/muse/blob/4.0.0/src/ChangeLog The homepage: https://muse-sequencer.github.io/ Download: https://github.com/muse-sequencer/muse/releases/download/4.0.0/muse-4.0.tar… https://github.com/muse-sequencer/muse/releases/download/4.0.0/MusE-4.0.0-x… Demos page: https://github.com/muse-sequencer/muse/wiki/Demos Forum: https://linuxmusicians.com/viewforum.php?f=61

4 years, 3 months

Re: [LAU] [Rosegarden-user] Alternative hardware

by david

On 4/24/21 4:36 AM, Will Godfrey wrote: > On Tue, 20 Apr 2021 08:11:18 -1000 > "David W. Jones" <gnome(a)hawaii.rr.com> wrote: > >> On April 20, 2021 5:46:46 AM HST, Will Godfrey wrote: >>> Has anyone tried compiling Rosegarden for the Raspberry Pi4? >>> If so, what is the absolute minimum required to get it up and running? >>> I would expect it to be extremely slow to compile :( >> Hmm. Couldn't you cross-compile - compile for ARM/PI 4 on your Intel? > I looked at that. It's a hell of a lot of work, just to compile one application > - I really don't have time for that :( > Seems to me like that sort of thing (setting it up) would be a one-time hell of a lot of work, but if you're going to be compiling Rosegarden for ARM/PI to keep your RG PI version current... Maybe the RG devs have clues on doing that? -- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com "My password is the last 8 digits of π."

4 years, 3 months

Re: [LAU] Problems connecting Sound Devices usbpre2 to JACK

by Chris Caudle

On 2021-04-23 14:57, robertlazarski wrote: Better to keep replies on list, to help others with a similar problem and to get insight from other people. > I finally found my interface in qjackctl -- setup. I restarted it and > instead of a separate shell for jack, I used qjackctl to start jack. I > see these two processes: > > robert 7019 7014 0 09:33 ? 00:00:00 /usr/bin/jackd -dalsa > -dhw:USBPre2 -r48000 -p1024 -n2 > root 7174 1 0 09:36 ? 00:00:00 /usr/bin/jackd -T > -ndefault -T -d alsa That looks like you had another instance of jackd running already as root that you did not stop. You generally do not ever want to run jackd as root, so kill that 7174 process. And still did not really answer the original question. If you start jackd manually from a terminal as you did, qjackctl will detect the running instance and connect to the already running jackd. Did you start qjackctl before or after you started jackd from the terminal? > However, now jltcdump somehow is on hw:0 I think there is a vocabulary problem. What do you mean that ltcdump is "on" hw:0? Jack applications have ports Jackd will also assign ports to hardware interfaces. You use a jack control application (such as qjackctl for GUI, or jack_connect for CLI) to connect ports together to transfer audio data between hardware interfaces and applications, and between applications. You need to start jackd before starting any jack aware applications (other than control applications like qjackctl or catia) or you may end up with jackd starting up with the last used configuration as default. > From jltcdump. > > Acquire audio card Audio0 > creating alsa driver ... > hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit > configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 > periods > ALSA: final selected sample format for capture: 32bit integer > little-endian > ALSA: use 2 periods for capture > ALSA: final selected sample format for playback: 32bit integer > little-endian > ALSA: use 2 periods for playback > JACK server started I'm confused, you write "from jltcdump" but that output is what jackd displays when it starts up. Was that output really displayed on the terminal after you started jltcdump? I think you need to get back to a known beginning configuration first. Kill jltcdump, stop jackd from qjackctl, quit qjackctl, and look for any processes with "jack" in the name and kill those. After you are sure that there are no more jackd processes running, start qjackctl, click the "Setup" button, and check the interface, sample rate, period size, etc. there. If you need to make any changes then hit apply or OK or whatever accepts the changes and goes back to the main window; if the settings are already what you want you can click the cancel button to go back to the main window, then click the "Start" button to start the jackd server. Click the "Connect" button and the connections window should open, with only "system" shown in both the Readable Clients/Output Ports and the Writeable Clients/Input Ports windows. Now run jltcdump from a terminal, and you should see a new entry for jltcdump show up in the Writeable Clients window. Click the arrow to expand the entry and you should see input1 as an available port for jltcdump. Click the arrow to expand system in the Readable Clients window and you should see capture_1 and capture_2 ports available (assuming you have a typical two channel audio interface; if you have more input channels on your audio interface you should see a number of capture ports representing the available inputs assuming you did not restrict the number of ports when starting jackd). Now you can connect the appropriate output port from the hardware driver (capture_1 is usually the left channel on a two channel interface) to the input port on jltcdump. Click the appropriate capture port, then click the input1 port on jltcdump, then click the Connect button in the bottom left corner of the window. The audio data from that input port of your interface should now be sent to jltcdump (indicated by qjackctl drawing a line between the two ports). -- Chris Caudle

4 years, 3 months

Decent Sampler

by Paul Davis

This is a public service announcement, since I suspect that many here will not be aware of this development. David Hilowitz (0) recently "ported" (1) his new sample library playback engine Decent Sampler to Linux. It is available as a Linux VST3 plugin and as a standalone application (2) David's work was substantially inspired by the work in the Pianobook community (3), where people build often-complex sample libraries originally to "save" real pianos but increasingly covering new territory (such as the Winter Voices project (4)). I am a little disappointed that David chose to define a new sampler library format rather than use SFZ, given the developments with sfizz over the last several months. However, both DecentSampler and SFZ are text formats, and there are gratis implementations for them both. In theory, DS -> SFZ conversion could be automated, though the other way around may be more problematic. Yesterday I downloaded 36 Decent Sampler libraries from the Pianobook website, and although they are not all quite as awesome as I had hoped for, some of them are amazing and all of them make a valuable addition to the sample library situation for Linux audio/music workflows. There are also some gratis and some non-gratis libraries for Decent Sampler on the Decent Sampler website. It would be lovely if Decent Sampler was libre as well as gratis, and I hope we see quality SFZ libraries either gratis or reasonably priced, because that format offers some features missing from Decent Sampler. But for now, I personally consider this a wonderful step forward for Linux-based musicians. (0) https://www.youtube.com/channel/UCCoAJ5JYKYTMubpTIsWi70w (1) I put ported in quotes because I believe that DS is implemented using JUCE, and so this mostly just involved changing the build flags :) (2) https://www.decentsamples.com/product/decent-sampler-plugin/ (3) https://www.pianobook.co.uk/ (4) https://www.pianobook.co.uk/library/winter-voices/

4 years, 3 months

OT: Documentary: Sisters with Transistors

by Kevin Cole

I know it's a bit off-topic but I suspect there are a lot of people on these lists who would appreciate the newly released film: https://www.theguardian.com/film/2021/apr/23/sisters-with-transistors-revie…

4 years, 3 months

Fwd: Tuesday 27 April 2021 at 20:00 GMT - Film screening "Sisters with Transistors"

by Kevin Cole

My buddy Alberto finds / creates such fun toys, information, events, etc... https://supersonicfestival.com/event/sisters-with-transistors/

4 years, 3 months

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Linux-audio-user