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tap-tempo: reset running average whenever tapped tempo deviates by +/- 20%

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This commit is contained in:
Colin Fletcher 2015-03-21 12:12:11 +00:00
parent 3127587f9a
commit d3d7428a18
1 changed files with 9 additions and 3 deletions
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12
gtk2_ardour/tempo_dialog.cc
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@ -274,15 +274,21 @@ TempoDialog::tap_tempo_button_press (GdkEventButton *ev)
interval = (now - last_tap) * 1.0e-6;
if (interval <= 6.0) {
// <= 6 seconds (say): >= 10 bpm
if (average_interval > 0 && average_interval > interval / 1.2 && average_interval < interval * 1.2) {
if (average_interval > 0) {
if (average_interval > interval / 1.2 && average_interval < interval * 1.2) {
average_interval = interval * decay
+ average_interval * (1.0-decay);
} else {
average_interval = 0;
}
} else {
average_interval = interval;
}
bpm = 60.0 / average_interval;
bpm_spinner.set_value (bpm);
if (average_interval > 0) {
bpm = 60.0 / average_interval;
bpm_spinner.set_value (bpm);
}
} else {
average_interval = 0;
}