651 lines
26 KiB
JavaScript
651 lines
26 KiB
JavaScript
import {
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mapValue,
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mix,
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} from './utils.js';
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window.mapValue = mapValue;
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const Audio = function(tp, record) {
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const audioDom = document.querySelector('.audioWrapper');
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const heading = audioDom.querySelector("h1");
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heading.textContent = "CLICK HERE TO START";
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//document.body.addEventListener("click", init);
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let started = false;
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const mapping = {};
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const addAudioOptions = (layer, propTitle) => {
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const panelPropTitle = tp.getPanelPropTitle(propTitle);
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if (panelPropTitle === null) {
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console.log('Audio::addAudioOptions::error',`cannot find panelPropTitle "${propTitle}"`);
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return;
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}
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const container = tp.getPanelPropContainer(panelPropTitle);
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const mappingOptions = mapping[layer.id()][propTitle];
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const panel = tp.getPanel();
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const audioOptions = document.createElement('div');
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audioOptions.classList.add('audioOptions');
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audioOptions.classList.add('audioOptionsTypeDefault');
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audioOptions.classList.add(`audioOptions${propTitle}`);
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audioOptions.style.position = 'relative';
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audioOptions.style.width = '100%';
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audioOptions.style.background = 'rgba(0,255,255,0.2)';
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audioOptions.style.order = window.getComputedStyle(container).order;
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mappingOptions.freq_min = 0;
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mappingOptions.freq_max = 256 * 8 / 2;
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const updateMappingOptions = () => {
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mappingOptions.min_out = parseFloat(panel.querySelector(`#audio_min${propTitle}`).value);
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mappingOptions.max_out = parseFloat(panel.querySelector(`#audio_max${propTitle}`).value);
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mappingOptions.sync =
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panel.querySelector(`input[name="audio_sync${propTitle}"]:checked`).value;
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const s = panel.querySelector(`#audio_smoothing${propTitle}`).value;
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mappingOptions.smoothing = parseFloat(s);
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};
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const min_max_Dom = document.createElement('div');
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min_max_Dom.classList.add('audio_min_max');
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const min_inputDom_label = document.createElement('label');
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min_inputDom_label.for = 'audio_min';
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min_inputDom_label.innerHTML = 'audio_min';
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const min_inputDom = document.createElement('input');
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min_inputDom.type = 'number';
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min_inputDom.name = `audio_min${propTitle}`;
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min_inputDom.id = `audio_min${propTitle}`;
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min_inputDom.value = '0';
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const max_inputDom_label = document.createElement('label');
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max_inputDom_label.for = 'audio_max';
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max_inputDom_label.innerHTML = 'audio_max';
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const max_inputDom = document.createElement('input');
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max_inputDom.type = 'number';
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max_inputDom.name = `audio_max${propTitle}`;
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max_inputDom.id = `audio_max${propTitle}`;
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max_inputDom.value = '255';
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const smoothing_inputDom_label = document.createElement('label');
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smoothing_inputDom_label.for = 'audio_smoothing';
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smoothing_inputDom_label.innerHTML = 'audio_smoothing';
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const smoothing_inputDom = document.createElement('input');
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smoothing_inputDom.type = 'number';
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smoothing_inputDom.name = `audio_smoothing${propTitle}`;
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smoothing_inputDom.id = `audio_smoothing${propTitle}`;
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smoothing_inputDom.value = config.audio.defaultSmoothing;
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smoothing_inputDom.min = 0;
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smoothing_inputDom.max = 1;
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smoothing_inputDom.step = 0.01;
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min_max_Dom.append(smoothing_inputDom_label);
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min_max_Dom.append(smoothing_inputDom);
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min_max_Dom.append(min_inputDom_label);
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min_max_Dom.append(min_inputDom);
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min_max_Dom.append(max_inputDom_label);
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min_max_Dom.append(max_inputDom);
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audioOptions.append(min_max_Dom);
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const sync_Dom = document.createElement('div');
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const sync_titleDom = document.createElement('p');
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sync_titleDom.innerHTML = 'sync with:';
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sync_Dom.append(sync_titleDom);
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const sync_options = ['volume', 'pitch', 'frequency'];
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sync_options.forEach((o, oi) => {
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const sync_inputDom_label = document.createElement('label');
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sync_inputDom_label.for = `audio_sync${o}`;
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sync_inputDom_label.innerHTML = o;
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const sync_inputDom = document.createElement('input');
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sync_inputDom.type = 'radio';
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sync_inputDom.name = `audio_sync${propTitle}`;
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sync_inputDom.id = `audio_sync${propTitle}${o}`;
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sync_inputDom.value = o;
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// default select first option
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if (oi === 0) {
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sync_inputDom.checked = '1';
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}
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sync_Dom.append(sync_inputDom_label);
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sync_Dom.append(sync_inputDom);
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sync_inputDom.addEventListener('change', updateMappingOptions);
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});
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audioOptions.append(sync_Dom);
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const fft_Dom = document.createElement('div');
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const fft_imgDom = document.createElement('img');
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const fft_selectDom = document.createElement('div');
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fft_Dom.style.position = 'relative';
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fft_Dom.style.top = '0px';
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fft_Dom.style.left = '0px';
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fft_imgDom.classList.add('audio_fft');
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fft_imgDom.style.width = '100%';
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fft_imgDom.style.userDrag = 'none';
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fft_imgDom.style.userSelect = 'none';
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fft_imgDom.style.pointerEvents = 'none';
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fft_selectDom.style.position = 'absolute';
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fft_selectDom.style.top = '0px';
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fft_selectDom.style.left = '0px';
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fft_selectDom.style.width = '100%';
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fft_selectDom.style.height = '100%';
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fft_selectDom.style.pointerEvents = 'none';
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fft_selectDom.style.backgroundColor = 'rgba(0,255,0,0.2)';
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fft_selectDom.style.border = '1px solid rgba(0,255,0,1.0)';
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fft_Dom.append(fft_imgDom);
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fft_Dom.append(fft_selectDom);
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audioOptions.append(fft_Dom);
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min_inputDom.addEventListener('change', updateMappingOptions);
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max_inputDom.addEventListener('change', updateMappingOptions);
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smoothing_inputDom.addEventListener('change', updateMappingOptions);
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let setFrequency = false;
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let freq_down = 0;
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let freq_up = 0;
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fft_Dom.addEventListener('mousedown', (e) => {
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setFrequency = true;
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const bb = fft_Dom.getBoundingClientRect();
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const x = e.clientX - bb.x;
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freq_down = mapValue(e.clientX, bb.x, bb.x + bb.width, 0, 256 * 8 / 2, true);
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});
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fft_Dom.addEventListener('mouseup', (e) => {
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setFrequency = false;
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const bb = fft_Dom.getBoundingClientRect();
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const x = e.clientX - bb.x;
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freq_down = mapValue(e.clientX, bb.x, bb.x + bb.width, 0, 256 * 8 / 2, true);
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});
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//removeAudioOptions();
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container.after(audioOptions);
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updateMappingOptions();
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mappingOptions.value = mappingOptions.min_out;
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};
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const removeAudioOptions = (propTitle = '') => {
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const panel = tp.getPanel();
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if (propTitle === '') {
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const otherAudioOptions = panel.querySelectorAll('.audioOptions');
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if (otherAudioOptions !== null) {
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for (let i = 0; i < otherAudioOptions.length; i++) {
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otherAudioOptions[i].remove();
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}
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}
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} else {
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const audioOptions = panel.querySelector(`.audioOptions${propTitle}`);
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if (audioOptions !== null) {
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audioOptions.remove();
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}
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}
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};
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const addAudioButton = (layer, propTitle, isActive) => {
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const panel = tp.getPanel();
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const panelPropTitle = tp.getPanelPropTitle(propTitle);
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if (panelPropTitle !== null) {
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const container = tp.getPanelPropContainer(panelPropTitle);
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if (container === null) {
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console.log("Audio::addAudioButton",
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`impossible! cannot find panelPropContainer for ${propTitle}`);
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} else if (container.querySelector('.audioButton') !== null) {
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// this is super verbose, let's not log by default
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//console.log("Audio::addAudioButton",
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//`already added an audio button for ${propTitle}`);
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} else {
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const button = document.createElement('div');
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button.classList.add('audioButton');
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button.classList.add(`audioButton${propTitle}`);
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button.innerHTML = `<img src="/web/assets/sound.svg" alt="audio" />`;
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container.append(button);
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button.addEventListener('click', () => {
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if (!started) {
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init();
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}
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if (!mapping.hasOwnProperty(layer.id())) {
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mapping[layer.id()] = {};
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}
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if (!mapping[layer.id()].hasOwnProperty(propTitle)) {
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mapping[layer.id()][propTitle] = {};
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button.classList.add('active');
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addAudioOptions(layer, propTitle);
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} else {
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delete mapping[layer.id()][propTitle];
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if (Object.keys(mapping[layer.id()]).length === 0) {
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delete mapping[layer.id()];
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}
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button.classList.remove('active');
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removeAudioOptions(propTitle);
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}
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});
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if (isActive) {
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button.classList.add('active');
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addAudioOptions(layer, propTitle);
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}
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}
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} else {
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console.log("Audio::addAudioButton",
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`cannot find panelPropTitle for ${propTitle}`);
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}
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};
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const injectPanel = (layer) => {
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const props = Object.keys(layer.theatreObject.value);
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props.forEach((propTitle) => {
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if (config.audio.ignoreProps.indexOf(propTitle) < 0) {
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let isActive = false;
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if (mapping.hasOwnProperty(layer.id())) {
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if (mapping[layer.id()].hasOwnProperty(propTitle)) {
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isActive = true;
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}
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}
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addAudioButton(layer, propTitle, isActive);
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}
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});
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};
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function init() {
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started = true;
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heading.textContent = "Voice-change-O-matic";
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//document.body.removeEventListener("click", init);
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// Older browsers might not implement mediaDevices at all, so we set an empty object first
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if (navigator.mediaDevices === undefined) {
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navigator.mediaDevices = {};
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}
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// Some browsers partially implement mediaDevices. We can't assign an object
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// with getUserMedia as it would overwrite existing properties.
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// Add the getUserMedia property if it's missing.
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if (navigator.mediaDevices.getUserMedia === undefined) {
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navigator.mediaDevices.getUserMedia = function(constraints) {
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// First get ahold of the legacy getUserMedia, if present
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const getUserMedia =
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navigator.webkitGetUserMedia ||
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navigator.mozGetUserMedia ||
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navigator.msGetUserMedia;
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// Some browsers just don't implement it - return a rejected promise with an error
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// to keep a consistent interface
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if (!getUserMedia) {
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return Promise.reject(
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new Error("getUserMedia is not implemented in this browser")
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);
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}
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// Otherwise, wrap the call to the old navigator.getUserMedia with a Promise
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return new Promise(function(resolve, reject) {
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getUserMedia.call(navigator, constraints, resolve, reject);
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});
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};
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}
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// Set up forked web audio context, for multiple browsers
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// window. is needed otherwise Safari explodes
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const audioCtx = new(window.AudioContext || window.webkitAudioContext)();
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const voiceSelect = audioDom.querySelector("#voice");
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let source;
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let stream;
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// Grab the mute button to use below
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const mute = audioDom.querySelector(".mute");
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// Set up the different audio nodes we will use for the app
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const analyser = audioCtx.createAnalyser();
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analyser.minDecibels = -90;
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analyser.maxDecibels = -10;
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analyser.smoothingTimeConstant = 0.85;
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window.analyser = analyser;
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const distortion = audioCtx.createWaveShaper();
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const gainNode = audioCtx.createGain();
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const biquadFilter = audioCtx.createBiquadFilter();
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const convolver = audioCtx.createConvolver();
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const echoDelay = createEchoDelayEffect(audioCtx);
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// Distortion curve for the waveshaper, thanks to Kevin Ennis
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// http://stackoverflow.com/questions/22312841/waveshaper-node-in-webaudio-how-to-emulate-distortion
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function makeDistortionCurve(amount) {
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let k = typeof amount === "number" ? amount : 50,
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n_samples = 44100,
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curve = new Float32Array(n_samples),
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deg = Math.PI / 180,
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i = 0,
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x;
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for (; i < n_samples; ++i) {
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x = (i * 2) / n_samples - 1;
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curve[i] = ((3 + k) * x * 20 * deg) / (Math.PI + k * Math.abs(x));
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}
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return curve;
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}
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// Grab audio track via XHR for convolver node
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let soundSource;
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const ajaxRequest = new XMLHttpRequest();
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ajaxRequest.open(
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"GET",
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"https://mdn.github.io/voice-change-o-matic/audio/concert-crowd.ogg",
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true
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);
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ajaxRequest.responseType = "arraybuffer";
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ajaxRequest.onload = function() {
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const audioData = ajaxRequest.response;
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audioCtx.decodeAudioData(
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audioData,
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function(buffer) {
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soundSource = audioCtx.createBufferSource();
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convolver.buffer = buffer;
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},
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function(e) {
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console.log("Error with decoding audio data" + e.err);
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}
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);
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};
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ajaxRequest.send();
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// Set up canvas context for visualizer
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const canvas = audioDom.querySelector(".visualizer");
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const canvasCtx = canvas.getContext("2d");
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const intendedWidth = audioDom.clientWidth;
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canvas.setAttribute("width", 256 * 8 / 2);
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const visualSelect = audioDom.querySelector("#visual");
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let drawVisual;
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// Main block for doing the audio recording
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if (navigator.mediaDevices.getUserMedia) {
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console.log("getUserMedia supported.");
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const constraints = {
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audio: true
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};
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navigator.mediaDevices
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.getUserMedia(constraints)
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.then(function(stream) {
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source = audioCtx.createMediaStreamSource(stream);
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source.connect(distortion);
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distortion.connect(biquadFilter);
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biquadFilter.connect(gainNode);
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convolver.connect(gainNode);
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echoDelay.placeBetween(gainNode, analyser);
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analyser.connect(audioCtx.destination);
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visualize();
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voiceChange();
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})
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.catch(function(err) {
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console.log("The following gUM error occured: " + err);
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});
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} else {
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console.log("getUserMedia not supported on your browser!");
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}
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function visualize() {
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const WIDTH = canvas.width;
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const HEIGHT = canvas.height;
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const visualSetting = visualSelect.value;
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if (visualSetting === "sinewave") {
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analyser.fftSize = 2048;
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const bufferLength = analyser.fftSize;
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// We can use Float32Array instead of Uint8Array if we want higher precision
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// const dataArray = new Float32Array(bufferLength);
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const dataArray = new Uint8Array(bufferLength);
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canvasCtx.clearRect(0, 0, WIDTH, HEIGHT);
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const draw = function() {
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drawVisual = requestAnimationFrame(draw);
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analyser.getByteTimeDomainData(dataArray);
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canvasCtx.fillStyle = "rgb(200, 200, 200)";
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canvasCtx.fillRect(0, 0, WIDTH, HEIGHT);
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canvasCtx.lineWidth = 2;
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canvasCtx.strokeStyle = "rgb(0, 0, 0)";
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canvasCtx.beginPath();
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const sliceWidth = (WIDTH * 1.0) / bufferLength;
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let x = 0;
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for (let i = 0; i < bufferLength; i++) {
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let v = dataArray[i] / 128.0;
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let y = (v * HEIGHT) / 2;
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if (i === 0) {
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canvasCtx.moveTo(x, y);
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} else {
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canvasCtx.lineTo(x, y);
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}
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x += sliceWidth;
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}
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canvasCtx.lineTo(canvas.width, canvas.height / 2);
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canvasCtx.stroke();
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};
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draw();
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} else if (visualSetting == "frequencybars") {
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analyser.fftSize = 256 * 8;
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const bufferLengthAlt = analyser.frequencyBinCount / 2;
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// See comment above for Float32Array()
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const dataArrayAlt = new Uint8Array(bufferLengthAlt);
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canvasCtx.clearRect(0, 0, WIDTH, HEIGHT);
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let frameCount = 0;
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const drawAlt = function() {
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drawVisual = requestAnimationFrame(drawAlt);
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analyser.getByteFrequencyData(dataArrayAlt);
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canvasCtx.fillStyle = "rgb(0, 0, 0)";
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canvasCtx.fillRect(0, 0, WIDTH, HEIGHT);
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const barWidth = (WIDTH / bufferLengthAlt) * 2.5;
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let barHeight;
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let x = 0;
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let max_i = 0;
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let max_v = 0;
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for (let i = 0; i < bufferLengthAlt; i++) {
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barHeight = dataArrayAlt[i];
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if (barHeight > max_v) {
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max_v = barHeight;
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max_i = i;
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}
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canvasCtx.fillStyle = "rgb(" + (barHeight + 100) + ",50,50)";
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canvasCtx.fillRect(
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x,
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HEIGHT - barHeight / 2,
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barWidth,
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barHeight / 2
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);
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x += barWidth + 1;
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}
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const propsToSet = [];
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getLayers().forEach((layer) => {
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if (mapping.hasOwnProperty(layer.id())) {
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Object.keys(mapping[layer.id()]).forEach((propTitle) => {
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const m = mapping[layer.id()][propTitle];
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switch(m.sync) {
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case 'volume': {
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let a = mapValue(max_v, 0, 255, m.min_out, m.max_out, true);
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m.value = m.value * m.smoothing + (1.0 - m.smoothing) * a;
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propsToSet.push({
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title: propTitle,
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prop: layer.theatreObject.props[propTitle],
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value: m.value,
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});
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break;
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}
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case 'pitch': {
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let a = mapValue(max_i, 0, bufferLengthAlt-1, m.min_out, m.max_out, true);
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m.value = m.value * m.smoothing + (1.0 - m.smoothing) * a;
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propsToSet.push({
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title: propTitle,
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|
prop: layer.theatreObject.props[propTitle],
|
|
value: m.value,
|
|
});
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
if (m.sync === 'volume') {
|
|
}
|
|
});
|
|
}
|
|
});
|
|
if (propsToSet.length > 0 && frameCount % 2 === 0) {
|
|
if (!record.isRecording()) {
|
|
tp.studio.transaction(({
|
|
set
|
|
}) => {
|
|
propsToSet.forEach((p) => {
|
|
set(p.prop, p.value, true);
|
|
});
|
|
});
|
|
} else {
|
|
propsToSet.forEach((p) => {
|
|
// TODO: this does not have to be queried
|
|
// but we could store it in a map/set/dictionary/array/object
|
|
const inputElement = tp
|
|
.getPanelPropContainer(p.title)
|
|
.querySelector('input.recording');
|
|
|
|
if (inputElement !== null) {
|
|
inputElement.value = p.value;
|
|
inputElement.dispatchEvent(new Event('change'));
|
|
}
|
|
});
|
|
}
|
|
}
|
|
const panel = tp.getPanel();
|
|
const fft_images = panel.querySelectorAll('.audio_fft');
|
|
if (fft_images !== null) {
|
|
const src = canvas.toDataURL();
|
|
fft_images.forEach((e) => {
|
|
e.src = src;
|
|
});
|
|
}
|
|
frameCount++;
|
|
};
|
|
drawAlt();
|
|
} else if (visualSetting == "off") {
|
|
canvasCtx.clearRect(0, 0, WIDTH, HEIGHT);
|
|
canvasCtx.fillStyle = "red";
|
|
canvasCtx.fillRect(0, 0, WIDTH, HEIGHT);
|
|
}
|
|
}
|
|
|
|
function voiceChange() {
|
|
distortion.oversample = "4x";
|
|
biquadFilter.gain.setTargetAtTime(0, audioCtx.currentTime, 0);
|
|
|
|
const voiceSetting = voiceSelect.value;
|
|
|
|
if (echoDelay.isApplied()) {
|
|
echoDelay.discard();
|
|
}
|
|
|
|
// When convolver is selected it is connected back into the audio path
|
|
if (voiceSetting == "convolver") {
|
|
biquadFilter.disconnect(0);
|
|
biquadFilter.connect(convolver);
|
|
} else {
|
|
biquadFilter.disconnect(0);
|
|
biquadFilter.connect(gainNode);
|
|
|
|
if (voiceSetting == "distortion") {
|
|
distortion.curve = makeDistortionCurve(400);
|
|
} else if (voiceSetting == "biquad") {
|
|
biquadFilter.type = "lowshelf";
|
|
biquadFilter.frequency.setTargetAtTime(1000, audioCtx.currentTime, 0);
|
|
biquadFilter.gain.setTargetAtTime(25, audioCtx.currentTime, 0);
|
|
} else if (voiceSetting == "delay") {
|
|
echoDelay.apply();
|
|
} else if (voiceSetting == "off") {
|
|
console.log("Voice settings turned off");
|
|
}
|
|
}
|
|
}
|
|
|
|
function createEchoDelayEffect(audioContext) {
|
|
const delay = audioContext.createDelay(1);
|
|
const dryNode = audioContext.createGain();
|
|
const wetNode = audioContext.createGain();
|
|
const mixer = audioContext.createGain();
|
|
const filter = audioContext.createBiquadFilter();
|
|
|
|
delay.delayTime.value = 0.75;
|
|
dryNode.gain.value = 1;
|
|
wetNode.gain.value = 0;
|
|
filter.frequency.value = 1100;
|
|
filter.type = "highpass";
|
|
|
|
return {
|
|
apply: function() {
|
|
wetNode.gain.setValueAtTime(0.75, audioContext.currentTime);
|
|
},
|
|
discard: function() {
|
|
wetNode.gain.setValueAtTime(0, audioContext.currentTime);
|
|
},
|
|
isApplied: function() {
|
|
return wetNode.gain.value > 0;
|
|
},
|
|
placeBetween: function(inputNode, outputNode) {
|
|
inputNode.connect(delay);
|
|
delay.connect(wetNode);
|
|
wetNode.connect(filter);
|
|
filter.connect(delay);
|
|
|
|
inputNode.connect(dryNode);
|
|
dryNode.connect(mixer);
|
|
wetNode.connect(mixer);
|
|
mixer.connect(outputNode);
|
|
},
|
|
};
|
|
}
|
|
|
|
// Event listeners to change visualize and voice settings
|
|
visualSelect.onchange = function() {
|
|
window.cancelAnimationFrame(drawVisual);
|
|
visualize();
|
|
};
|
|
|
|
voiceSelect.onchange = function() {
|
|
voiceChange();
|
|
};
|
|
|
|
mute.onclick = voiceMute;
|
|
|
|
let previousGain;
|
|
|
|
function voiceMute() {
|
|
if (mute.id === "") {
|
|
previousGain = gainNode.gain.value;
|
|
gainNode.gain.value = 0;
|
|
mute.id = "activated";
|
|
mute.innerHTML = "Unmute";
|
|
} else {
|
|
gainNode.gain.value = previousGain;
|
|
mute.id = "";
|
|
mute.innerHTML = "Mute";
|
|
}
|
|
}
|
|
}
|
|
|
|
this.init = init;
|
|
this.injectPanel = injectPanel;
|
|
this.mapping = mapping;
|
|
};
|
|
|
|
export {
|
|
Audio
|
|
}
|