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Fix delay issue by moving things from TransportProcessor

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This commit is contained in:
Miika Alonen
2023-10-28 23:25:11 +03:00
parent 2a44840ee7
commit 4aa7448fa7
4 changed files with 38 additions and 59 deletions
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17
src/TransportProcessor.js
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@ -9,8 +9,6 @@ class TransportProcessor extends AudioWorkletProcessor {
this.bpm = 120;
this.ppqn = 48;
this.currentPulsePosition = 0;
this.totalPausedTime = 0;
this.lastPauseTime = null;
}
handleMessage = (message) => {
@ -18,18 +16,8 @@ class TransportProcessor extends AudioWorkletProcessor {
this.port.postMessage(message.data);
} else if (message.data.type === "start") {
this.started = true;
this.lastPlayPressTime = currentTime;
this.totalPausedTime = 0;
} else if (message.data.type === "resume") {
this.started = true;
if (this.lastPauseTime !== null) {
this.totalPausedTime += currentTime - this.lastPauseTime;
this.lastPauseTime = null;
}
} else if (message.data.type === "pause") {
this.started = false;
this.lastPauseTime = currentTime;
} else if (message.data.type === "stop") {
this.started = false;
} else if (message.data.type === 'bpm') {
@ -40,7 +28,6 @@ class TransportProcessor extends AudioWorkletProcessor {
} else if (message.data.type === 'nudge') {
this.nudge = message.data.value;
}
console.log("Message delay: ", currentTime - message.data.sentAt);
}
process(inputs, outputs, parameters) {
@ -48,13 +35,9 @@ class TransportProcessor extends AudioWorkletProcessor {
const adjustedCurrentTime = currentTime + (this.nudge / 100);
const beatNumber = adjustedCurrentTime / (60 / this.bpm);
const currentPulsePosition = Math.ceil(beatNumber * this.ppqn);
const elapsedTime = (currentTime - this.lastPlayPressTime) - this.totalPausedTime;
this.port.postMessage({ type: "elapsed", value: elapsedTime });
if (currentPulsePosition > this.currentPulsePosition) {
this.currentPulsePosition = currentPulsePosition;
this.port.postMessage({ type: "bang", bpm: this.bpm });
} else {
console.log("No bang", currentPulsePosition, this.currentPulsePosition);
}
}
return true;