Ardour/Working-with-midi/Handle-overlapping-notes
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Handle Overlapping Notes:MIDI 中一条 note 是 NoteOn+NoteOff(note number + channel)。同一 channel 上同一 note number 的两条 note 重叠违反 MIDI spec——多数 synth 表现为 NoteOn 持续、NoteOff 结束,行为未定义。Ardour 在 *Session > Properties > Misc > MIDI Options* 提供处理方式:
- Never allow overlapping notes:拒绝产生重叠
- Don't do anything in particular:不做处理(receiver 行为未定义)
- Replace overlapped existing note:新 note 替换旧的
- Shorten overlapped existing note:旧 note 截断到新 note 开始处
- Shorten overlapping new note:新 note 缩短
- Replace both with a single note:两条合并为一条
该设置只影响*新产生的*重叠,不会检查已存在的重叠;也不跨 track / region 检查。