Score Alternatives

score reviews and mentions

• Speed Up C++ Compilation
  3 projects | news.ycombinator.com | 5 Aug 2023

  In https://ossia.io with PCH, using clang, ninja, mold, and some artificial split in shared libraries for development builds, I get a compile-edit-run cycle of a couple seconds in general... I wouldn't say it's too much of a problem if you use the tools already available

• Looking for open source projects to contribute to
  2 projects | /r/cpp | 22 May 2023

  If you're interested in multimedia https://ossia.io is always looking for new contributors!

• Digital Audio Workstation Front End Development Struggles
  16 projects | news.ycombinator.com | 15 May 2023

  I develop https://ossia.io with Qt and it works as I want it to

  16 projects | news.ycombinator.com | 15 May 2023

  In ossia.io I use three different algorithms / display methods depending on the zoom level used: at "far away" zoom it uses the minmax of the audio slices, at intermediary zoom it draws lines and when getting closer, it starts drawing individual samples.

  https://github.com/ossia/score/blob/master/src/plugins/score...

  - Automation clips can contain a bunch of bezier curves, which are slow to render.

  Convert those to line segments with an approximation setting that looks good enough and it'll be ten times faster (keep the bezier for your data model of course).

  https://github.com/ossia/score/blob/master/src/plugins/score...

  https://github.com/ossia/score/blob/master/src/plugins/score...

  - Piano roll clips can contain lots of little rectangles in order to display a "minimap" of the MIDI notes inside of it.

  oh damn yes, I spent so much time on this and it still needs so much optimizing... if someone wants to give a shot at it :D

  https://github.com/ossia/score/blob/master/src/plugins/score...

  https://github.com/ossia/score/blob/master/src/plugins/score...

  - On top of all this, clips can contain text labels which can also be expensive to render.

  Yep, made myself a few "cached text" Qt items over time as the builtin cache wasn't satisfactory

  - The fact that a timeline is zoom-able also makes it harder to cache the rendering of clips. If the timeline changed its zoom level, all visible clips pretty much have to redraw all of their contents.

  yep

  - Piano rolls can also be expensive to render if there is a bunch of MIDI notes, especially if there are text labels on the notes.

  yep

  - If the user clicks on a folder in a sample browser containing hundreds or even thousands of files, allocating a label widget for each file in the browser list will be very expensive. Something like the list factory in GTK is needed here.

  yep, Qt's also able to cache this. Though for instance for Qt's QFileSystemModel I carry a small patch to disable any kind of sorting when there's more than a few hundred thousand files (which happens for large media libraries)

  - We want to reserve as much CPU as possible for the actual audio processing. Ideally the GUI shouldn't take up more than one or two CPU threads.

  16 projects | news.ycombinator.com | 15 May 2023

  Some comments on the issues mentioned at the beginning of the article as I had the same questions in https://ossia.io:

  - DAWs have a lot of toolbars and panels (browser panel, timeline panel, piano roll panel, fx rack panel, mixer panel, audio editor panel, automation editor panel, settings panel, etc.).

  for this Qt always performed brillantly for me. I went from QDockWidget to QSplitter-based layout though.

  - Some widgets like decibel meters and other visualizers are constantly being animated, meaning the GUI library needs to efficiently redraw the screen every frame.

  all the CPU-based toolkits will only redraw what changed though

  - In addition, visualizers can be expensive to render on the CPU (especially spectrograms/spectrometers). Ideally you should use custom shaders to render them on the GPU.

  fair, but then you may pay the cost of a GPU -> CPU transfer which isn't always free

  - Clips on the timeline are notoriously expensive to render. There needs to be some way to cache the contents of clips into a texture (Either directly or by making use of the GUI library's "damage tracking" which I'll get into later.)

• Cardinal/WASM: In-Browser Modular Synth Based on VCV Rack
  4 projects | news.ycombinator.com | 2 May 2023

  ossia score (https://ossia.io) also uses a patching interface for audio/video/etc plug-ins, I'm curious about what you think of it

• Tooll 3: open-source software to create realtime motion graphics
  2 projects | news.ycombinator.com | 16 Apr 2023

  You can check https://ossia.io, the real-time GFX has still some features missing in particular for procedural geometry but it's getting there one step at a time :)

• Ask HN: What audio/sound-related OSS projects can I contribute to?
  22 projects | news.ycombinator.com | 22 Mar 2023

  Happy to introduce you to https://ossia.io there are a lots of tasks open! You can check the projects for the general development axes: https://github.com/ossia/score/projects?query=is%3Aopen ; e.g. Audio, Musicality, Integrations, JACK & Linux integration (some are in Classic projects mode) all have audio-related tasks, some easy, some hard.

  Creating new Avendish plug-ins (docs: https://celtera.github.io/avendish/) could also be fairly useful, here's a very basic example one: https://github.com/celtera/avendish/blob/main/examples/Advan...

• Dropping support for old C++ standards
  3 projects | news.ycombinator.com | 7 Mar 2023

  I do it pretty much on my own for https://ossia.io ; it takes me roughly a day every other month to update my mac, linux and windows SDKs to the new LLVM / Qt / FFMPEG / {... other large dependency I use ...}.

  Definitely not the end of the world. Said SDKs & build scripts are available here: https://github.com/ossia/sdk for anyone interested (I'll be honest though: the scripts are a mess!)

• BlinderKitten, A free lighting software without restriction
  6 projects | news.ycombinator.com | 7 Mar 2023

  One such free OSC software you could use to control it (+ handle sound, video, etc as asked in GP) is https://ossia.io :) (transparency report: i'm the dev)

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  blog.mergify.com | 23 Sep 2023

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