Samsung YH-920 Manual page 159

Chapter 12. Plugins
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
Long Rewind
Rewind
Play
Left / Right
Up / Down
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 bar count and tempo always have to be specified, the rest is optional.
One example is
part I: 12 3/4 133
for a part named "part I" , 12 bars long, in 3/4 meter with a tempo of 133 quarter
beats per minute. Tempo changes are indicated by specifying a tempo range and the
acceleration in one of these ways:
The Rockbox manual
Action
Exit plugin
Stop (stay at position)
Start from / Stop at current position
Seek in track
Adjust volume
(version 3.14)
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Samsung YH-920