LinuxMusicians

NVidia has terrible GNU/Linux support and nouveau can't support latest GPUs. I use AMD Radeon cards. Just proprietary firmware, libre AMDGPU driver. You also get OpenCL via MESA/Clover. I expect more and more software to add OpenCL acceleration. Somewhere, I have read that NVidia's proprietary driv...

If you want a quiet graphics card from NVIDIA, go with the new 1030 GT. My 1050 Ti is apparently on par with the old 680, and is much more efficient. This is my current configuration My desktop is XFCE (Xubuntu) cat /etc/issue.net Ubuntu 16.04.3 LTS uname -srvmo Linux 4.4.0-97-lowlatency #120-Ubuntu...

Does M-Audio M-Track Quad work with ALSA/JACK? I saw a long discussion that claims it does not work on ALSA (thus not on JACK) [1], but I am unsure if the system was configured properly (ie, PulseAudio purged). Otherwise, do you know of an alternate interface with similar features and price? [1] htt...

Yesterday, I got a copyright question [1] on my GitHub repo for my MIDI SDK. I want to know how free software projects handle such problems. In short: Is it legal to list all constants except the General MIDI 2 program names that way, given that I make it clear that this is not the official MIDI ref...

I upgraded Firefox, and suddenly, it forces me to run PulseAudio, which I do not want. I am currently compiling it without PulseAudio. Then I saw this thread: https://linuxmusicians.com/viewtopic.php?f=4&t=16567 . Which would be nice if it really works. But I see no ports in Catia, so that claim...

I need to pass a string from the UI to the plugin. From the eg-sample, it appears that an LV2 atom should be written to a atom port. If I understand it correctly Allocate a LV2_Atom_Forge. May that object be on the stack or does it have to survive after the UI event callback has returned? Call lv2_a...

After digging into your concerns about external libraries, it appears that you worry a lot about ABI issues with third party libraries. As a solution, you suggest that each plugin should be self-contained (it is very likely that I pull in libjansson into my plug later). Alternatively, you want to es...

Juce might be an option for you then. So what would the "Hello World" UI be. Should I claim it is a Gtk2, X11 or what in the manifest. Does JUCE require any magic preprocessor like Qt4. That is why Qt5 is better to work with. I belive Qt6 will improve on it further. Regarding gtk3/4, the ...

a move to gtk3 is a bad idea. not only you break compatibility with all gtk2 uis right now, but you endup with the same situation very soon (gtk4 is already in development). by the time you port everything to gtk3, gtk4 will be already out. in my view the solution is rolling your own toolkit. pugl ...

Of course not. Gtk2 applications cannot load gtk3 stuff, and vice-versa. We've been discussing this to hell in the LV2 mailing list, and recently in LAC too. See http://lists.lv2plug.in/pipermail/devel-lv2plug.in/2016-March/001593.html I read that thread, and I want to add the following points: Wha...

you need to report what kind of atom port it is, and that is supports midi events. Saw that *by comparing with another file on the disk*. Why not JSON instead? { "targets":[{"name":"plugindescriptor.hpp"}] ,"specification": { "name":"Monophonic...

What is wrong here? ardour-pinouts.png As you can see, there is no MIDI input visible. The test plugin works perfectly in Carla. The manifest looks like # This file has been generated by /usr/local/bin/lv2spectottl.php @prefix atom: <http://lv2plug.in/ns/ext/atom#> . @prefix doap: <http://usefulinc....

What I mean is, switch the buffer and signal the disc thread to fill the second buffer, when the rt-thread start to read the first buffer, not when it's finished. Choose the buffer size big enough to have a couple of jack-frame sizes in it, to give the disc thread more time to fill the buffer. When...

Using 2 fixed size buffers, big enough, and switch them between disk and realtime thread. To say, read data in the first buffer, hand it over to the rt-thread. As soon the rt-thread starts to read the buffer, signal the disk thread to fill the other buffer. Switch them, when the rt-thread have reac...

I have a problem in how to play waveform data from a high-latency device (think disk file, network socket). I cannot call any blocking function from the realtime thread, so I cannot fetch data directly. I guess some kind of FIFO should work. The writing to the FIFO must block when the FIFO is full,...