v2.1.3

• Updated Faust from 2.74.6 to 2.75.7.
• Updated LLVM from 17.0.6 to 18.1.8.
• Disabled LLVM fast-math in Faust's generated LLVM IR. This changes Mephisto's outputs slightly, but should significantly reduce the chances of Mephisto's outputs changing after updating Faust or LLVM again.

Full Changelog: v2.1.2...v2.1.3

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v2.1.2

Updated Mephisto from version 0.19.127 to version 0.19.159. Also improved determination-renderer's concurrency handling and slightly optimized the build process for the image.

Full Changelog: v2.1.1...v2.1.2

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SHA-256 hash of closure-determination.tar.zst:

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v2.1.1

Fixed a bug where ZynAddSubFX sometimes crashes with a segmentation fault.

Full Changelog: v2.1.0...v2.1.1

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v2.1.0

Replaced Calf Studio Gear with Mephisto, an LV2 plugin that allows you to make your own synthesizers and effects in the Faust programming language. Mephisto can replicate all of Calf Studio Gear's effects and much more if you know how, so I cut out the middleman.

The -s and -e flags of determination-export have been changed to take sample numbers instead of BBT numbers to make it easier to deal with projects that have tempos and time signatures that change throughout the project.

The default buffer size has been changed to 128 (was 256).

Some other changes:

• Added better help text to determination-export when you use the command determination-export --help. It now explains in detail how to set up a project for rendering and what you can and can't use.
• determination-export should take less time to load projects now.
• Removed a lot of warnings that show up when running determination-export.
• The determination-export command now prints the rendering progress to the screen every 10 seconds in case you have a really slow computer. This delay time is adjustable using the --log-interval flag.
• The sample rate and buffer size used when rendering are now adjustable using the -r/--rate and -b/--buffer command-line arguments to determination-export.

Full Changelog: v2.0.1...v2.1.0

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v2.0.1

• Fixed a problem where Calf Studio Gear produces nondeterministic results if there are multiple Calf Studio Gear plugins in the same project that use randomness.
• Reduced the uncompressed size of the image from 147 mebibytes to 73 mebibytes by removing all locale files other than those of the C locale as well as Calf Studio Gear's documentation and GUI skins and ZynAddSubFX's presets.
• Improved the robustness of determination-renderer's sample conversion algorithm and concurrency handling.
• Silenced a vague warning that appears in red text when a Carla internal plugin is initialized. It has to do with us not setting a resource directory for Carla to use, but it's totally fine to silence it because Carla works fine without a resource directory.
• The named pipe that determination-renderer outputs the rendered raw PCM data to is now located at "/.determination-renderer-pipe" instead of "/determination-renderer-pipe" so that it isn't visible in ls's output.

Full Changelog: v2.0.0...v2.0.1

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v2.0.0

Replaced the previous Ardour-based audio renderer with a new Carla-based one that's more featureful, much lighter (about 6 mebibytes including all dependencies other than the system libraries), less prone to segmentation faults and more resilient against nondeterminisms. Also removed Krita because Krita is really large and it doesn't really suffer from nondeterminisms like audio programs do anyways.

Added Calf Studio Gear as a new set of LV2 plugins. ZynAddSubFX might have some nice effects, but Calf's effects are just that much better and it was really easy to get it to behave deterministically.

Thanks to the new renderer, we no longer need to make significant changes to ZynAddSubFX to get it to behave deterministically now, so we now use the regular ZynAddSubFX codebase instead of a fork.

The new renderer requires around 256 mebibytes of shared memory. That means you now need to pass --shm-size 256m to the docker run or podman run command if you're using Docker or Podman, or else you'll probably encounter a bus error (the default value of --shm-size is 64m at time of writing in both Docker and Podman).

Full Changelog: v1.3.2...v2.0.0

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v1.3.2

Updated ZynAddSubFX from 3.0.6-determinism0 to 3.0.6-determinism1 to fix nondeterministic behaviour of ZynAddSubFX at runtime. See the changes between these two ZynAddSubFX versions here: white-axe/zynaddsubfx@3.0.6-determinism0...3.0.6-determinism1.

Specifically, this fixes nondeterministic results when exporting an Ardour project containing a ZynAddSubFX instance that uses LFO in ADsynth or PADsynth with "sync" enabled, since that option causes the LFO phase to be calculated based on global time instead of time since the note started playing. The problem was that the global time for the LFO was being calculated based on the time since the synthesizer was initialized. It's now the time since the first note was played.

Full Changelog: v1.3.1...v1.3.2

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v1.3.1

• Deduplicated some files that were present in more than one layer of the container image.
• Fixed a warning about not being able to load MP3 formats that appeared every time determination-ardour-export was used.

Full Changelog: v1.3.0...v1.3.1

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v1.3.0

• Updated Nixpkgs from 23.11 to 24.05.
  • Also removed the additional dependency on the unstable version of Nixpkgs since Nixpkgs 24.05 has all the packages and functionality we need.
• Updated Ardour from 8.4 to 8.6.
• Updated Krita from 5.1.5 to 5.2.2.
• Removed runtime dependency on GNU AWK.
• Removed build-time dependency on KVM (Kernel-based Virtual Machine).
• determination-ardour-export now prioritizes searching for LV2 plugins in /lib/lv2 over the paths in the LV2_PATH environment variable instead of the other way around.
• Elaborated a little more about reproducibility in the README.

Full Changelog: v1.2.0...v1.3.0

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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SHA-256 hash of container-image-determination.tar:

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SHA-256 hash of closure-determination.tar.zst:

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v1.2.0

• Removed the image's runtime dependency on libcamera and pipewire, two packages that are known to have build reproducibility problems. With that, I'm confident the image now builds reproducibly, even if you build everything from source without using Nix's binary cache. Be warned that some of the image's build-time dependencies are known to not build reproducibly; only the image tarball (and the image on ghcr.io) is reproducible.
• The PATH environment variable is now explicitly set in the image configuration and in the determination-ardour-export and determination-krita-export shell scripts instead of relying on the container runtime to provide a sane default.
• The image now uses a custom image builder that builds a layered image, which improves development speed and the speed at which new updates to this image can be downloaded by container runtimes.

Full Changelog: v1.1.3...v1.2.0

Image digest (skopeo inspect oci-archive:container-image-determination.tar | jq -er '.Digest'):

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