... When locale is not English (and translation is complete enough, as in
French) then the switching from Generic to Full interface in Options... did not
work.
(Locales lacking translations of the strings "Full" and "Generic" didn't have
this problem.)
(AudioUnit effects still don't implement a "Basic" interface distinct from
"Generic" regardless of locale. That's another matter.)
- There are two new commands: Scrub Backwards and Scrub Forwards.
- These commands appear on the Transport sub menu of the Extra menu.
- The commands have default shortcuts U and I, and are in the standard default set.
- After pressing one of the two keys, playback continues until the key is released. (Note that this means that the command on the Extra > Transport menu can't actually be used for scrubbing as it executes a KeyDown immediately followed by a KeyUp, but the menu items are needed so that the current keystrokes can be seen and changed.)
- Playback starts from the cursor position, or the start of a time selection if there is one.
- The speed of playback is determined by the zoom level. If the zoom level is normal, then the playback speed is one quarter of the normal playback speed. Zooming in (Ctrl + 1), halves the playback speed, and zooming out (Ctrl + 3) doubles the playback speed. There are minimum and maximum playback speeds of one sixteenth, and four respectively.
- You can scrub to the end of the audio, even if there is an initial selection. In other words, scrubbing forwards does not automatically stop at the end of the selection.
- Normally, when one of the keys is released, the position of the cursor is set to the time when the key was released.
- If during the time one of the keys is pressed the left bracket and or right bracket keys are pressed to set the start and/or end of the selection, then when the scrubbing key is released, the change to the selection made by pressing the bracket keys is preserved - the position of the cursor is not set to the time when the key was released.
This implementation is affected by two existing bugs:
1. Bug 1954 - Clicks may occur starting/pausing play-at-speed or Scrub. (See comment 19 and attached image).
2. Bug 1956 - Windows: MME and WDS playback cursor is buffer length ahead of actual audio playing. This means that on Windows, WASAPI is preferable if scrubbing is being used for the accurate positioning of the cursor.
Instead of only when recording (it broke monitoring), now Audacity
will prevent the system from sleeping while any audio I/O is active.
This might be a little strong-handed though and maybe should be a
preference option.
... Because:
1 They weren't used
2 The branches selected by them were wrongly passing user-visible prompt strings
to DoDataShuttle, which elsewhere takes a preference path (this is an error that
could have been detected and avoided if there weren't naked wxString arguments)
3 Without those branches, the affected Tie... functions become more parallel to
other ShuttleGui member functions, which might later be unified into fewer
functions
