Specifications

Chapter 10. Plugins 70
In contrast to the simple mode, there exists the notion of meter and bars, along with
emphasis on certain beats. Parts can have these properties:
• finite or infinite duration in bars (navigation only jumps to the beginning of infinite
parts),
• differing meters (4/4, 3/4, 6/8, etc., default 4/4),
• differing tempo (always in quarter beats per minute, default 120) with
– one tempo per bar or even one tempo per beat, or
– smooth tempo changes with configurable acceleration, and
• custom beat patterns (tick/tock/silence on each beat), default being emphasis
(tick) on first beat, normal sound (tock) on others.
The button mapping is different to enable navigation in the programmed track.
Key Action
Long Menu Exit plugin
Menu Stop (stay at position)
On Start from / Stop at current position
Minus / Plus Seek in track
Play / Stop Adjust volume
Navigation The display indicates the part properties and position in track as such:
Metronome Track
---------------
"Interlude"
3/4@120 V-25
P2/13: B1/5+2
In this example, the part label is “Interlude”, the meter is 3/4 and the tempo 120 quarter
beats per minute (bpm). The volume setting is at -25 and this is the second part of a
track with 13 total. In that part, the position is at the second beat of the first bar of
five.
The syntax of programmed tracks in tempomap files follows the format defined by
http://das.nasophon.de/klick/. Actually, the goal is to keep compatibility between klick
and this Rockbox metronome. The parts of a track are specified one line each in this
scheme (pieces in [] optional):
[name:] bars [meter ]tempo[-tempo2[*accel|/accel] [pattern] [volume]
The Rockbox manual (version rUnversioned directory-150516) Archos Studio/Player