Transcription

From Arnout Engelen

For transcription purposes, it'd be nice to have a simple tool to navigate and annotate a sound file.

• no need for audio capabilities, it could simply use the jack transport API.
• MIDI/OSC-controllable: most functionality should be events that can be triggered by anything.
• the annotations form a hierarchy.

Data model:

• a list of timestamps and annotations. Each annotation has an indentation level.

State:

• current location in the song
• mode: input mode or navigation mode
• current indentation level
• later: loop points, loop state?

Actions:

• Navigation:
  • play/pause (spacebar)
  • jump to previous/next annotation (up/down)
  • jump to previous/next annotation at least at the 'current' indentation (pageup/pagedn)
  • forward/rewind by 5 seconds (right/left)
  • forward/rewind by 15 seconds (shift-right/shift-left)
  • back to beginning (home)
• Input
  • enter an annotation here (return enters input mode, esc leaves it)
  • edit current annotation ('i' enters input mode)
• Manipulation
  • indent current annotation (tab)
  • unindent current annotation (shift-tab)
  • move current annotation up/down by a second (shift-up/down)