将MIDI滴答转换为实际播放秒数 [英] Converting MIDI ticks to actual playback seconds

问题描述

我想知道如何将MIDI节拍转换为实际播放秒数.

I want to know how to convert MIDI ticks to actual playback seconds.

例如，如果MIDI PPQ(每四分之一脉冲数)为1120，我如何将其转换为真实的播放秒数?

For example, if the MIDI PPQ (Pulses per quarter note) is 1120, how would I convert it into real world playback seconds?

推荐答案

公式为60000 / (BPM * PPQ)(毫秒).

BPM是曲目的速度(每分钟节拍数).

Where BPM is the tempo of the track (Beats Per Minute).

(即120 BPM轨道的MIDI时间为(60000 / (120 * 192))或2.604 ms，持续1个滴答声.

(i.e. a 120 BPM track would have a MIDI time of (60000 / (120 * 192)) or 2.604 ms for 1 tick.

如果您不知道BPM，则必须先确定. MIDI时间完全取决于音轨的速度.

If you don't know the BPM then you'll have to determine that first. MIDI times are entirely dependent on the track tempo.

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