v0.10.0 — LTC output: level, playhead & multi-channel

Highlights — LTC output

Three improvements from real-world testing against an external LTC decoder:

🎚 Independent LTC output level

Settings → Audio now has an LTC output level slider that scales the LTC
signal's amplitude on its own — raise it if a decoder drops frames — without
touching the music level (unlike turning up the Mac's system volume). Default
raised for more headroom out of the box. (It still can't exceed the system output
volume; for full independence, route LTC to an audio-interface channel.)

▶️ Moving playhead on the LTC strip

The LTC strip below the waveform now shows a playhead line that tracks
playback, so it's a live timecode reference instead of a static ruler.

🔀 Same role on multiple channels

LTC (and Track L / Track R) can now be assigned to multiple output channels at
once — fan one LTC signal out to several devices (a decoder + a lighting desk +
a recorder), or send program audio to several outputs. Assigning a role no longer
clears it off other channels.

Also

• Fix: the Edit Media sheet's Start timecode field is now wide enough to show
  and enter the full HH:MM:SS:FF.

Install

1. Download OnlyCue-0.10.0.dmg.
2. Open the DMG and drag OnlyCue into your Applications folder.
3. First launch: macOS blocks the app ("Apple could not verify 'OnlyCue' is free of malware…"). Open System Settings → Privacy & Security, scroll to Security, and click Open Anyway next to the OnlyCue notice; confirm and authenticate. (Or run xattr -dr com.apple.quarantine /Applications/OnlyCue.app in Terminal.) Future launches are silent.

Why the extra step? OnlyCue is currently distributed without a paid Apple Developer ID signature. The app and DMG are unsigned but otherwise unmodified. You can also build from source (see the README).

Requires macOS 14.0 or later.