hacklab/strudel
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

channel splitting and channels parameter

Browse source
This commit is contained in:
Jade Rowland 2023-11-23 01:04:53 -05:00
parent f0b458cd17
commit e419733716
2 changed files with 42 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

41
packages/superdough/superdough.mjs
View file

@ -31,38 +31,33 @@ let audioContext;
export const getAudioContext = () => {
if (!audioContext) {
audioContext = new AudioContext();
var maxChannelCount = audioContext.destination.maxChannelCount;
const maxChannelCount = audioContext.destination.maxChannelCount;
audioContext.destination.channelCount = maxChannelCount;
}
//console.log(audioContext.destination.maxChannelCount);
return audioContext;
};
// outputs: Map<int, audiGainNode>
// outputs: Map<int, GainNode>
const outputs = new Map();
let channelMerger;
// channels: Array<int>
const getDestinations = (channels) => {
const ctx = getAudioContext();
if (channelMerger == null) {
channelMerger = ctx.createChannelMerger(ctx.destination.channelCount);
channelMerger = new ChannelMergerNode(ctx, { numberOfInputs: ctx.destination.channelCount });
channelMerger.connect(ctx.destination);
}
channels.forEach((ch) => {
if (!outputs.has(ch)) {
const gain = ctx.createGain();
gain.channelInterpretation = 'discrete';
const gain = new GainNode(ctx, {
channelInterpretation: 'discrete',
channelCount: 1,
channelCountMode: 'explicit',
});
gain.connect(channelMerger, 0, ch);
outputs.set(ch, gain);
}
});
// if (!destination) {
// destination = ctx.createGain();
// channelMerger = ctx.createChannelMerger(ctx.destination.channelCount);
// channelMerger.connect(ctx.destination);
// destination.connect(channelMerger, 0, 4);
// destination.connect(channelMerger, 0, 5);
// }
return channels.map((ch) => outputs.get(ch));
};
@ -121,10 +116,15 @@ const maxfeedback = 0.98;
//input: audioNode, channels: Array<int>
const connectToOutputs = (input, channels = [0, 1]) => {
const outputs = getDestinations(channels);
console.log(input);
const ctx = getAudioContext();
const center = new StereoPannerNode(ctx);
input.connect(center);
const splitter = new ChannelSplitterNode(ctx, {
numberOfOutputs: input.channelCount,
});
center.connect(splitter);
outputs.forEach((output, i) => {
input.connect(output, 0);
splitter.connect(output, i % input.channelCount, 0);
});
};
@ -333,6 +333,7 @@ export const superdough = async (value, deadline, hapDuration) => {
compressorAttack,
compressorRelease,
} = value;
gain *= velocity; // legacy fix for velocity
let toDisconnect = []; // audio nodes that will be disconnected when the source has ended
const onended = () => {
@ -466,11 +467,9 @@ export const superdough = async (value, deadline, hapDuration) => {
}
// last gain
const post = gainNode(postgain);
const post = new GainNode(ac, { gain: postgain });
chain.push(post);
console.log(channels);
// this should be an array but is getting interpreted as an int for some reason...
connectToOutputs(post, [channels]);
connectToOutputs(post, channels);
// delay
let delaySend;