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add master gain + panic

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This commit is contained in:
Felix Roos 2022-08-18 16:13:27 +02:00
parent 04502b05d4
commit 75e57c75cf
1 changed files with 15 additions and 1 deletions
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16
packages/webaudio/webaudio.mjs
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@ -19,6 +19,20 @@ export const getAudioContext = () => {
} }
return audioContext; return audioContext;
}; };
let destination;
export const getDestination = () => {
const ctx = getAudioContext();
if (!destination) {
destination = ctx.createGain();
destination.connect(ctx.destination);
}
return destination;
};
export const panic = () => {
getDestination().gain.linearRampToValueAtTime(0, getAudioContext().currentTime + 0.01);
destination = null;
};
const getFilter = (type, frequency, Q) => { const getFilter = (type, frequency, Q) => {
const filter = getAudioContext().createBiquadFilter(); const filter = getAudioContext().createBiquadFilter();
@ -265,7 +279,7 @@ export const webaudioOutput = async (hap, deadline, hapDuration) => {
/* const master = ac.createGain(); /* const master = ac.createGain();
master.gain.value = 0.8 * gain; master.gain.value = 0.8 * gain;
chain.push(master); */ chain.push(master); */
chain.push(ac.destination); chain.push(getDestination());
// connect chain elements together // connect chain elements together
chain.slice(1).reduce((last, current) => last.connect(current), chain[0]); chain.slice(1).reduce((last, current) => last.connect(current), chain[0]);
} catch (e) { } catch (e) {