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@github-actions github-actions released this 30 Oct 23:56
· 1064 commits to main since this release
v0.5.1
f26a8c8

transit v0.5.1

This is a point release shortly after v0.5.0, for Linux. It makes the native JACK backend work under PipeWire without pw-jack, and makes the Audio Devices window tell the truth about buffers there. Windows and macOS get only the load readout fix. transit is alpha-quality software and the session format may still change, so back up anything you care about.

Highlights

  • Native JACK connects under PipeWire without pw-jack. When PipeWire's server is running, transit looks for PipeWire's own JACK library first, so Auto reaches the server on Ubuntu and Debian without starting transit as pw-jack transit. Audio Devices shows which library is in use, or every library tried and why each failed. pw-jack transit still works (#230).
  • Audio Devices shows the buffer you really get on Linux. Through ALSA under PipeWire, the buffer is split into periods and PipeWire runs transit at the period, so the window now shows buffer, period and the server's quantum, labels each size with its period, and says that PipeWire's quantum sets the period. The latency wording is about the buffer plus the quantum, and the troubleshooting page explains buffer versus period (#230).
  • The buffer picker follows the server. Under PipeWire it offers only sizes the server allows, one range serves both the list and opening the device, and a saved size the device no longer offers opens at the nearest one it does instead of locking the control (#230).
  • The load readout ignores a stalled callback. One stalled audio callback no longer skews the load figure in the Callback Telemetry window (#230).

Fixes

  • Tests: a held-source test in the render-task graph no longer lets its deadline pass before the worker wakes; it misses the source by the deterministic deadline instead of a 5 ms wait. No user-facing change (E66).

Known issues

Full list: docs/known-issues.

  • K88: mixer strips render on the render workers by default, and TRANSIT_RENDER_POOL=0 renders them serially on the audio thread. A session with sidechain keys renders through the task graph by default, and TRANSIT_RENDER_GRAPH=0 is its opt-out. The auxes, busses and masters still render serially on the audio thread after the strips until slice 2 of #174.
  • K89: a plug-in that hangs inside a render worker keeps its track silent and refuses session changes until you close the device or Reconnect. The hung track shows the Unresponsive marker after two seconds, and the engine cannot say which plug-in on that track hangs.
  • K90: a plug-in that never returns on the host thread cannot be stopped. Give up quarantines it, but its editor window stays as a ghost until transit exits, so choose Later first and do not End Task the ghost.
  • K91: fixed for PCM takes at the session's rate (#187, slice 1). Takes at another rate, or in a compressed format, that are too long to decode are still refused, with a message and an entry under unplaced takes.
  • K92: Linux editor windows do not speak XEmbed, so keyboard focus can stay with the main window or nowhere until you click into the plug-in's field. Keyboard shortcuts typed into an editor are not forwarded to transit.
  • K93: Linux editor windows keep the scale they opened with, and they do not rescale between monitors with different scaling. A native Wayland surface is later work.
  • K94: Linux editor windows have no header strip and no transient-for link to the main window, so with Follow transit on they hide and return with a minimized main window, and activating transit does not lift them above it on every window manager. The strip and the link are slice 2 of #147.
  • K95: Macro Oscillator, raising Voices from 1 while several keys are held legato leaves them all on voice 0; replaying one of the older held keys drops the others there. Reachable only by changing the voice count mid-phrase from mono (#196).
  • #184: one recording on an overloaded machine showed a 4.7 s stretch of exact zeros in both armed inputs; a one-hour recording under heavier compile load did not reproduce it. Input stalls are not yet counted or marked on the take. Please report it if you see it.
  • #215: items 1 and 3 remain. The scheduling gate's deterministic seam cannot produce every miss outcome yet, and the testing feature's coverage of the fingerprint seam is incomplete.
  • #219: a bypassed insert receives no parameter values, and a Save As right after a skipped block can still read the previous value.
  • KC5: Linux, native JACK under PipeWire: connecting without pw-jack is verified only where PipeWire's JACK library is not blocked by JACK 2's; it needs a tester on Ubuntu 24.04 with both jackd2 and pipewire-jack installed. If the Audio Devices window says another libjack was already loaded, start transit as pw-jack transit.
  • KC6: Linux, ALSA under PipeWire: the buffer you choose is the ALSA buffer, split into four periods, so PipeWire runs transit at about a quarter of it; the window shows the buffer, the period and the server's quantum. Making the chosen size the period itself is an open question.
  • KC7: Linux: the window recognizes PipeWire's ALSA default device only where pipewire-alsa's default configuration file is installed in the standard place; another route to PipeWire shows the plain buffer list.
  • Open items: compressed formats, recording straight into a disk-backed source and the UI setting for long takes are slice 2 of #187. Clip tools slices 2 and 3 are open in #181, and the range gesture that Crop and the range tools need is #224. More help catalog areas follow in #178. The return time for Touch mode is a constant 0.2 s until #223 makes it a setting. Browser preview converts sample rates with linear interpolation, so a 96 kHz file previewed at 48 kHz can alias; #225 proposes a streaming sinc stage to bring preview to import quality, and it also tracks a cue output path for preview.

Downloads

Assets are attached to this release.

Platform Asset
Windows (x86_64) installer transit-v0.5.1-windows-x86_64.msi
Windows (x86_64) portable transit-v0.5.1-windows-x86_64.zip
macOS (Apple silicon) transit-v0.5.1-macos-arm64.dmg (holds transit.app)
macOS (Apple silicon), bare binary with audio-bench transit-v0.5.1-macos-arm64.tar.gz
Linux (x86_64) tarball with audio-bench transit-v0.5.1-linux-x86_64.tar.gz
Linux (x86_64) AppImage transit-0.5.1-linux-x86_64.AppImage
Linux (x86_64) Debian and Ubuntu package transit-0.5.1-linux-x86_64.deb
Linux (x86_64) Fedora and RPM package transit-0.5.1-linux-x86_64.rpm

A .AppImage.zsync file sits next to the AppImage for delta updates. Every archive carries audio-bench, which measures your interface (round trip, jitter, xruns).

All builds are unsigned. On Windows, SmartScreen shows "More info", then "Run anyway"; the Windows build includes native WASAPI and native ASIO. The macOS app is ad-hoc signed and not notarized; if macOS blocks it, run xattr -dr com.apple.quarantine /Applications/transit.app, or right-click it and choose Open. On Linux, make the AppImage executable (chmod +x) and run it, or install the .deb or .rpm with your package manager; none of the Linux packages are signed. The Linux builds carry the native JACK backend (#55): it talks to a running JACK 2 or PipeWire server (transit never starts one), and Auto prefers it when a server is up, including PipeWire's, whose own JACK library is probed first when its server runs. More Linux reports are wanted in #55: run transit --report and tell us how it went.

Checksums

SHA-256 of each asset:

0e4ba8aa51527a790fc779de58dc42b65ede2c0f677bd0fd72f2e3c9fc0d0fb8 *transit-0.5.1-linux-x86_64.AppImage
3d4d9c340188724882f356f3badf78f0af3b78ef45e96c6bad3319bee7c27882 *transit-0.5.1-linux-x86_64.AppImage.zsync
6055dedafecbeb0d555c4b474d03da46b4a4bb7265e7066be6a9783f91813efb *transit-0.5.1-linux-x86_64.deb
b94db20590462d4a765ec01c1355a48b80e9c763e6639b806117d822eb4c3560 *transit-0.5.1-linux-x86_64.rpm
2de96685c25fa3ab9510c938ca4ee2981d90ef892f79fc0cdf252f13226aa963 *transit-v0.5.1-linux-x86_64.tar.gz
99c616b9e0041c5d971cef9d9f8a18b496086127c6d8efd78515f008c390bfe8 *transit-v0.5.1-macos-arm64.dmg
a5ee96d38be60b8564098c560b81375ae2c8d0889d15e5913dc4a6bb2abf1844 *transit-v0.5.1-macos-arm64.tar.gz
67ef8f7d09568e9329c21054e3138c927b18cac8dd32712cfa706c9b22448bdb *transit-v0.5.1-windows-x86_64.msi
b4cf2e016fd741859c06aa0a055a2b1cb9c50b6f86d55e85a3d76b8c1a69048d *transit-v0.5.1-windows-x86_64.zip

Full changelog

v0.5.0...v0.5.1

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