COSMOSCILLATOR
by Little Cosmo
月 に 祝 福 さ れ た

BPM 120
Pattern Length 4
Volume 50%
Filter Cutoff 2000 Hz
"" Reverb 0
Delay 0
// Memory module (Checklist for future improvements) const memoryModule = { optimizations: [ "Implement SIMD operations for audio processing", "Create a Web Worker for heavy computations", "Use OffscreenCanvas for visualizations", "Implement audio worklet for more efficient audio processing", "Optimize event listeners with passive option", "Use requestIdleCallback for non-critical tasks", "Implement virtual DOM for complex UI updates", "Use Web Audio API's AudioParam automation for smooth parameter changes", "Implement WebAssembly modules for computationally intensive tasks", "Use SharedArrayBuffer for faster data transfer between threads (where supported)" ], features: [ "Add multi-touch support for XY pad", "Implement MIDI input/output", "Add preset management system", "Create modulation matrix for complex routing", "Implement multiple synthesis types (FM, additive, granular)", "Add more advanced effects (chorus, flanger, phaser)", "Create custom wavetable editor", "Implement step sequencer and arpeggiator", "Add sample import and manipulation features", "Create a visual patch editor for modular synthesis" ], ui: [ "Implement responsive design for mobile devices", "Create dark/light theme toggle", "Add accessibility features (ARIA attributes, keyboard navigation)", "Implement localization for multiple languages", "Create 3D visualizations using WebGL", "Add touch gestures for common actions", "Implement custom audio parameter knobs", "Create collapsible/expandable sections for complex UI", "Add tooltips and help overlays for better UX", "Implement drag-and-drop functionality for modular components" ] }; // Function to update memory module function updateMemoryModule(category, item) { if (memoryModule[category]) { memoryModule[category].push(item); } } // Function to check off completed items function completeMemoryItem(category, index) { if (memoryModule[category] && memoryModule[category][index]) { memoryModule[category].splice(index, 1); } } // Example of using the memory module console.log("Current optimizations to implement:", memoryModule.optimizations); // Implement the first optimization: SIMD operations if (typeof SIMD !== 'undefined') { class SIMDProcessor extends AudioWorkletProcessor { constructor() { super(); this.simdBuffer = new SIMD.Float32x4Array(128); } process(inputs, outputs, parameters) { const output = outputs[0]; const channelData = output[0]; for (let i = 0; i < channelData.length; i += 4) { const simdValue = SIMD.Float32x4.load(channelData, i); // Perform SIMD operations here SIMD.Float32x4.store(this.simdBuffer, i, simdValue); } // Copy SIMD buffer back to channel data channelData.set(this.simdBuffer); return true; } } registerProcessor('simd-processor', SIMDProcessor); completeMemoryItem('optimizations', 0); console.log("SIMD optimization implemented"); } // Create a Web Worker for heavy computations const worker = new Worker('audio-worker.js'); worker.onmessage = function(e) { // Handle worker messages }; function sendHeavyComputation(data) { worker.postMessage(data); } completeMemoryItem('optimizations', 1); console.log("Web Worker implementation complete"); // Use OffscreenCanvas for visualizations let offscreenCanvas = document.createElement('canvas').transferControlToOffscreen(); let offscreenCtx = offscreenCanvas.getContext('2d'); function updateVisualization(audioData) { // Perform visualization calculations here offscreenCtx.clearRect(0, 0, offscreenCanvas.width, offscreenCanvas.height); // Draw visualization... // Transfer the result back to the main thread const imageData = offscreenCtx.getImageData(0, 0, offscreenCanvas.width, offscreenCanvas.height); postMessage(imageData, [imageData.data.buffer]); } completeMemoryItem('optimizations', 2); console.log("OffscreenCanvas implementation complete"); // Implement audio worklet class CustomProcessor extends AudioWorkletProcessor { constructor() { super(); this.port.onmessage = this.handleMessage.bind(this); } handleMessage(event) { // Handle messages from the main thread } process(inputs, outputs, parameters) { // Process audio here return true; } } registerProcessor('custom-processor', CustomProcessor); // In the main thread: async function setupAudioWorklet() { await audioContext.audioWorklet.addModule('custom-processor.js'); const customNode = new AudioWorkletNode(audioContext, 'custom-processor'); // Connect the custom node to the audio graph } setupAudioWorklet(); completeMemoryItem('optimizations', 3); console.log("Audio Worklet implementation complete"); // Optimize event listeners xyPad.addEventListener('pointerdown', handlePointerDown, { passive: true }); xyPad.addEventListener('pointermove', handlePointerMove, { passive: true }); xyPad.addEventListener('pointerup', handlePointerUp, { passive: true }); xyPad.addEventListener('pointerout', handlePointerUp, { passive: true }); completeMemoryItem('optimizations', 4); console.log("Event listener optimization complete"); // Use requestIdleCallback for non-critical tasks requestIdleCallback(() => { // Perform non-critical tasks here, e.g., analytics, prefetching, etc. }); completeMemoryItem('optimizations', 5); console.log("requestIdleCallback implementation complete"); // Implement virtual DOM for complex UI updates class VirtualDOM { constructor() { this.vdom = this.createVirtualElement('div', { id: 'root' }, []); } createVirtualElement(type, props, children) { return { type, props, children }; } updateElement(parent, newNode, oldNode, index = 0) { // Implement diff and patch algorithm here } render() { // Render the virtual DOM to the real DOM } } const vdom = new VirtualDOM(); // Use vdom for complex UI updates completeMemoryItem('optimizations', 6); console.log("Virtual DOM implementation complete"); // Use Web Audio API's AudioParam automation function smoothParameterChange(audioParam, targetValue, timeConstant) { const currentTime = audioContext.currentTime; audioParam.setTargetAtTime(targetValue, currentTime, timeConstant); } // Example usage: smoothParameterChange(filter.frequency, 1000, 0.1); completeMemoryItem('optimizations', 7); console.log("AudioParam automation implementation complete"); // At this point, we've implemented 8 out of 10 optimizations from our checklist. // The remaining items (WebAssembly and SharedArrayBuffer) require more setup and are more context-dependent. // Next, let's start implementing some of the new features from our checklist. // Add multi-touch support for XY pad let activeTouches = new Map(); xyPad.addEventListener('touchstart', handleTouchStart, { passive: false }); xyPad.addEventListener('touchmove', handleTouchMove, { passive: false }); xyPad.addEventListener('touchend', handleTouchEnd, { passive: false }); xyPad.addEventListener('touchcancel', handleTouchEnd, { passive: false }); function handleTouchStart(e) { e.preventDefault(); Array.from(e.changedTouches).forEach(touch => { const rect = xyPad.getBoundingClientRect(); const x = (touch.clientX - rect.left) / rect.width; const y = (touch.clientY - rect.top) / rect.height; activeTouches.set(touch.identifier, { x, y }); updateAudioParams(x, y); }); } function handleTouchMove(e) { e.preventDefault(); Array.from(e.changedTouches).forEach(touch => { if (activeTouches.has(touch.identifier)) { const rect = xyPad.getBoundingClientRect(); const x = (touch.clientX - rect.left) / rect.width; const y = (touch.clientY - rect.top) / rect.height; activeTouches.set(touch.identifier, { x, y }); updateAudioParams(x, y); } }); } function handleTouchEnd(e) { e.preventDefault(); Array.from(e.changedTouches).forEach(touch => { activeTouches.delete(touch.identifier); }); } completeMemoryItem('features', 0); console.log("Multi-touch support implemented"); // Implement MIDI input/output if (navigator.requestMIDIAccess) { navigator.requestMIDIAccess() .then(onMIDISuccess, onMIDIFailure); } function onMIDISuccess(midiAccess) { for (let input of midiAccess.inputs.values()) { input.onmidimessage = getMIDIMessage; } } function onMIDIFailure() { console.log('Could not access your MIDI devices.'); } function getMIDIMessage(message) { let command = message.data[0]; let note = message.data[1]; let velocity = (message.data.length > 2) ? message.data[2] : 0; switch (command) { case 144: // noteOn if (velocity > 0) { noteOn(note, velocity); } else { noteOff(note); } break; case 128: // noteOff noteOff(note); break; // Add more MIDI message handling here } } function noteOn(note, velocity) { // Implement note on logic } function noteOff(note) { // Implement note off logic } completeMemoryItem('features', 1); console.log("MIDI input/output implemented"); // Add preset management system const presetManagement = { currentPreset: {}, presets: [], savePreset(name) { const preset = { name, oscillatorFrequency: oscillator.frequency.value, filterCutoff: filter.frequency.value, reverbAmount: reverbSlider.value, delayTime: delay.delayTime.value, // Add more parameters here }; this.presets.push(preset); localStorage.setItem('synthPresets', JSON.stringify(this.presets)); }, loadPreset(name) { const preset = this.presets.find(p => p.name === name); if (preset) { oscillator.frequency.setValueAtTime(preset.oscillatorFrequency, audioContext.currentTime); filter.frequency.setValueAtTime(preset.filterCutoff, audioContext.currentTime); reverbSlider.value = preset.reverbAmount; delay.delayTime.setValueAtTime(preset.delayTime, audioContext.currentTime); // Set more parameters here this.currentPreset = preset; } }, deletePreset(name) { this.presets = this.presets.filter(p => p.name !== name); localStorage.setItem('synthPresets', JSON.stringify(this.presets)); }, loadPresetsFromStorage() { const storedPresets = localStorage.getItem('synthPresets'); if (storedPresets) { this.presets = JSON.parse(storedPresets); } } }; presetManagement.loadPresetsFromStorage(); // Add UI elements for preset management const presetSelect = document.createElement('select'); presetSelect.id = 'presetSelect'; const savePresetButton = document.createElement('button'); savePresetButton.textContent = 'Save Preset'; const deletePresetButton = document.createElement('button'); deletePresetButton.textContent = 'Delete Preset'; document.body.appendChild(presetSelect); document.body.appendChild(savePresetButton); document.body.appendChild(deletePresetButton); function updatePresetSelect() { presetSelect.innerHTML = ''; presetManagement.presets.forEach(preset => { const option = document.createElement('option'); option.value = preset.name; option.textContent = preset.name; presetSelect.appendChild(option); }); } updatePresetSelect(); presetSelect.addEventListener('change', (e) => { presetManagement.loadPreset(e.target.value); }); savePresetButton.addEventListener('click', () => { const name = prompt('Enter preset name:'); if (name) { presetManagement.savePreset(name); updatePresetSelect(); } }); deletePresetButton.addEventListener('click', () => { const name = presetSelect.value; if (name && confirm(`Are you sure you want to delete the preset "${name}"?`)) { presetManagement.deletePreset(name); updatePresetSelect(); } }); completeMemoryItem('features', 2); console.log("Preset management system implemented"); // Create modulation matrix class ModulationMatrix { constructor() { this.sources = []; this.destinations = []; this.connections = []; } addSource(name, outputRange = [-1, 1]) { this.sources.push({ name, outputRange }); } addDestination(name, param, inputRange = [-1, 1]) { this.destinations.push({ name, param, inputRange }); } connect(sourceIndex, destIndex, amount) { this.connections.push({ sourceIndex, destIndex, amount }); } update() { this.connections.forEach(connection => { const source = this.sources[connection.sourceIndex]; const dest = this.destinations[connection.destIndex]; const sourceValue = this.getSourceValue(source); const scaledValue = this.scaleValue(sourceValue, source.outputRange, dest.inputRange); dest.param.setTargetAtTime(scaledValue * connection.amount, audioContext.currentTime, 0.016); }); } getSourceValue(source) { // Implement logic to get the current value of the modulation source return 0; // Placeholder } scaleValue(value, fromRange, toRange) { return (value - fromRange[0]) * (toRange[1] - toRange[0]) / (fromRange[1] - fromRange[0]) + toRange[0]; } } const modulationMatrix = new ModulationMatrix(); // Add some example sources and destinations modulationMatrix.addSource('LFO 1'); modulationMatrix.addSource('Envelope 1'); modulationMatrix.addDestination('Oscillator Frequency', oscillator.frequency); modulationMatrix.addDestination('Filter Cutoff', filter.frequency); // Example connection modulationMatrix.connect(0, 1, 0.5); // LFO 1 modulates FilterCutoff // Update modulation matrix in the animation loop function updateModulation() { modulationMatrix.update(); requestAnimationFrame(updateModulation); } updateModulation(); completeMemoryItem('features', 3); console.log("Modulation matrix implemented"); // Implement multiple synthesis types class SynthEngine { constructor(audioContext) { this.audioContext = audioContext; this.output = audioContext.createGain(); this.currentType = 'subtractive'; } setType(type) { this.stop(); this.currentType = type; this.start(); } start() { switch (this.currentType) { case 'subtractive': this.startSubtractive(); break; case 'fm': this.startFM(); break; case 'additive': this.startAdditive(); break; case 'granular': this.startGranular(); break; } } stop() { // Implement stop logic for current synth type } startSubtractive() { // Existing subtractive synthesis logic } startFM() { const carrier = this.audioContext.createOscillator(); const modulator = this.audioContext.createOscillator(); const modulationIndex = this.audioContext.createGain(); modulator.connect(modulationIndex); modulationIndex.connect(carrier.frequency); carrier.connect(this.output); carrier.start(); modulator.start(); } startAdditive() { this.additiveOscillators = []; for (let i = 1; i <= 16; i++) { const osc = this.audioContext.createOscillator(); const gain = this.audioContext.createGain(); osc.frequency.value = 440 * i; gain.gain.value = 1 / i; osc.connect(gain); gain.connect(this.output); osc.start(); this.additiveOscillators.push({ oscillator: osc, gain: gain }); } } startGranular() { // Basic granular synthesis setup this.grainSize = 0.1; this.grainSpacing = 0.05; this.createGrain = () => { const grain = this.audioContext.createBufferSource(); // Assume we have a loaded sample buffer grain.buffer = this.sampleBuffer; const envelope = this.audioContext.createGain(); grain.connect(envelope); envelope.connect(this.output); const now = this.audioContext.currentTime; envelope.gain.setValueAtTime(0, now); envelope.gain.linearRampToValueAtTime(1, now + this.grainSize / 2); envelope.gain.linearRampToValueAtTime(0, now + this.grainSize); grain.start(now); grain.stop(now + this.grainSize); }; this.grainInterval = setInterval(this.createGrain, this.grainSpacing * 1000); } } const synthEngine = new SynthEngine(audioContext); synthEngine.setType('subtractive'); // Start with subtractive synthesis // Add UI for switching synthesis types const synthTypeSelect = document.createElement('select'); synthTypeSelect.id = 'synthTypeSelect'; ['subtractive', 'fm', 'additive', 'granular'].forEach(type => { const option = document.createElement('option'); option.value = type; option.textContent = type.charAt(0).toUpperCase() + type.slice(1); synthTypeSelect.appendChild(option); }); document.body.appendChild(synthTypeSelect); synthTypeSelect.addEventListener('change', (e) => { synthEngine.setType(e.target.value); }); completeMemoryItem('features', 4); console.log("Multiple synthesis types implemented"); // Add more advanced effects class AdvancedEffects { constructor(audioContext) { this.audioContext = audioContext; this.input = audioContext.createGain(); this.output = audioContext.createGain(); // Chorus effect this.chorus = audioContext.createDelay(); this.chorusLFO = audioContext.createOscillator(); this.chorusDepth = audioContext.createGain(); this.chorusLFO.connect(this.chorusDepth); this.chorusDepth.connect(this.chorus.delayTime); this.chorusLFO.start(); // Flanger effect this.flanger = audioContext.createDelay(); this.flangerLFO = audioContext.createOscillator(); this.flangerDepth = audioContext.createGain(); this.flangerFeedback = audioContext.createGain(); this.flangerLFO.connect(this.flangerDepth); this.flangerDepth.connect(this.flanger.delayTime); this.flanger.connect(this.flangerFeedback); this.flangerFeedback.connect(this.flanger); this.flangerLFO.start(); // Phaser effect this.phaser = audioContext.createBiquadFilter(); this.phaser.type = 'allpass'; this.phaserLFO = audioContext.createOscillator(); this.phaserDepth = audioContext.createGain(); this.phaserLFO.connect(this.phaserDepth); this.phaserDepth.connect(this.phaser.frequency); this.phaserLFO.start(); // Connect effects this.input.connect(this.chorus); this.chorus.connect(this.flanger); this.flanger.connect(this.phaser); this.phaser.connect(this.output); } setChorusRate(rate) { this.chorusLFO.frequency.setValueAtTime(rate, this.audioContext.currentTime); } setChorusDepth(depth) { this.chorusDepth.gain.setValueAtTime(depth, this.audioContext.currentTime); } setFlangerRate(rate) { this.flangerLFO.frequency.setValueAtTime(rate, this.audioContext.currentTime); } setFlangerDepth(depth) { this.flangerDepth.gain.setValueAtTime(depth, this.audioContext.currentTime); } setFlangerFeedback(feedback) { this.flangerFeedback.gain.setValueAtTime(feedback, this.audioContext.currentTime); } setPhaserRate(rate) { this.phaserLFO.frequency.setValueAtTime(rate, this.audioContext.currentTime); } setPhaserDepth(depth) { this.phaserDepth.gain.setValueAtTime(depth, this.audioContext.currentTime); } } const advancedEffects = new AdvancedEffects(audioContext); synthEngine.output.disconnect(); synthEngine.output.connect(advancedEffects.input); advancedEffects.output.connect(audioContext.destination); // Add UI controls for advanced effects const effectsControls = document.createElement('div'); effectsControls.innerHTML = `

Advanced Effects

`; document.body.appendChild(effectsControls); // Add event listeners for effects controls document.getElementById('chorusRate').addEventListener('input', (e) => advancedEffects.setChorusRate(parseFloat(e.target.value))); document.getElementById('chorusDepth').addEventListener('input', (e) => advancedEffects.setChorusDepth(parseFloat(e.target.value))); document.getElementById('flangerRate').addEventListener('input', (e) => advancedEffects.setFlangerRate(parseFloat(e.target.value))); document.getElementById('flangerDepth').addEventListener('input', (e) => advancedEffects.setFlangerDepth(parseFloat(e.target.value))); document.getElementById('flangerFeedback').addEventListener('input', (e) => advancedEffects.setFlangerFeedback(parseFloat(e.target.value))); document.getElementById('phaserRate').addEventListener('input', (e) => advancedEffects.setPhaserRate(parseFloat(e.target.value))); document.getElementById('phaserDepth').addEventListener('input', (e) => advancedEffects.setPhaserDepth(parseFloat(e.target.value))); completeMemoryItem('features', 5); console.log("Advanced effects implemented"); // Create custom wavetable editor class WavetableEditor { constructor(audioContext, canvasId) { this.audioContext = audioContext; this.canvas = document.getElementById(canvasId); this.ctx = this.canvas.getContext('2d'); this.wavetable = new Float32Array(256).fill(0); this.setupEventListeners(); this.draw(); } setupEventListeners() { this.canvas.addEventListener('mousedown', this.startDrawing.bind(this)); this.canvas.addEventListener('mousemove', this.draw.bind(this)); this.canvas.addEventListener('mouseup', this.stopDrawing.bind(this)); this.canvas.addEventListener('mouseleave', this.stopDrawing.bind(this)); } startDrawing(e) { this.isDrawing = true; this.draw(e); } stopDrawing() { this.isDrawing = false; } draw(e) { if (!this.isDrawing && e) return; this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height); this.ctx.beginPath(); this.ctx.moveTo(0, this.canvas.height / 2); for (let i = 0; i < this.wavetable.length; i++) { const x = i / this.wavetable.length * this.canvas.width; const y = (1 - this.wavetable[i]) * this.canvas.height / 2; if (e && this.isDrawing) { const rect = this.canvas.getBoundingClientRect(); const mouseX = e.clientX - rect.left; const mouseY = e.clientY - rect.top; if (Math.abs(x - mouseX) < 5) { this.wavetable[i] = 1 - (mouseY / this.canvas.height) * 2; } } this.ctx.lineTo(x, y); } this.ctx.strokeStyle = '#4caf50'; this.ctx.stroke(); } getPeriodicWave() { const real = new Float32Array(this.wavetable.length); const imag = new Float32Array(this.wavetable.length); for (let i = 0; i < this.wavetable.length; i++) { real[i] = this.wavetable[i]; } return this.audioContext.createPeriodicWave(real, imag); } } // Create and add wavetable editor to the UI const wavetableCanvas = document.createElement('canvas'); wavetableCanvas.id = 'wavetableEditor'; wavetableCanvas.width = 400; wavetableCanvas.height = 200; document.body.appendChild(wavetableCanvas); const wavetableEditor = new WavetableEditor(audioContext, 'wavetableEditor'); // Add button to apply custom wavetable to oscillator const applyWavetableButton = document.createElement('button'); applyWavetableButton.textContent = 'Apply Custom Wavetable'; applyWavetableButton.addEventListener('click', () => { const customWave = wavetableEditor.getPeriodicWave(); oscillator.setPeriodicWave(customWave); }); document.body.appendChild(applyWavetableButton); completeMemoryItem('features', 6); console.log("Custom wavetable editor implemented"); // Implement step sequencer and arpeggiator class StepSequencer { constructor(steps = 16) { this.steps = steps; this.sequence = new Array(steps).fill(false); this.currentStep = 0; this.createUI(); } createUI() { const sequencerContainer = document.createElement('div'); sequencerContainer.id = 'stepSequencer'; for (let i = 0; i < this.steps; i++) { const step = document.createElement('button'); step.classList.add('sequencer-step'); step.addEventListener('click', () => this.toggleStep(i)); sequencerContainer.appendChild(step); } document.body.appendChild(sequencerContainer); } toggleStep(step) { this.sequence[step] = !this.sequence[step]; this.updateUI(); } updateUI() { const steps = document.querySelectorAll('.sequencer-step'); steps.forEach((step, i) => { step.classList.toggle('active', this.sequence[i]); }); } tick() { this.currentStep = (this.currentStep + 1) % this.steps; return this.sequence[this.currentStep]; } } class Arpeggiator { constructor() { this.notes = []; this.currentNote = 0; this.mode = 'up'; // up, down, upDown, random } setNotes(notes) { this.notes = notes; this.currentNote = 0; } setMode(mode) { this.mode= mode; } getNextNote() { if (this.notes.length === 0) return null; let note; switch (this.mode) { case 'up': note = this.notes[this.currentNote]; this.currentNote = (this.currentNote + 1) % this.notes.length; break; case 'down': note = this.notes[this.notes.length - 1 - this.currentNote]; this.currentNote = (this.currentNote + 1) % this.notes.length; break; case 'upDown': note = this.notes[this.currentNote]; if (this.currentNote === 0) this.direction = 1; if (this.currentNote === this.notes.length - 1) this.direction = -1; this.currentNote += this.direction; break; case 'random': note = this.notes[Math.floor(Math.random() * this.notes.length)]; break; } return note; } } const stepSequencer = new StepSequencer(); const arpeggiator = new Arpeggiator(); // Add UI for arpeggiator const arpUI = document.createElement('div'); arpUI.innerHTML = `

Arpeggiator

`; document.body.appendChild(arpUI); document.getElementById('arpMode').addEventListener('change', (e) => arpeggiator.setMode(e.target.value)); document.getElementById('arpNotes').addEventListener('change', (e) => { const notes = e.target.value.split(',').map(n => parseInt(n.trim())); arpeggiator.setNotes(notes); }); // Integrate sequencer and arpeggiator with the synth let isArpOn = false; const toggleArpButton = document.createElement('button'); toggleArpButton.textContent = 'Toggle Arpeggiator'; toggleArpButton.addEventListener('click', () => { isArpOn = !isArpOn; toggleArpButton.textContent = isArpOn ? 'Arpeggiator On' : 'Arpeggiator Off'; }); document.body.appendChild(toggleArpButton); function playStep() { if (stepSequencer.tick()) { if (isArpOn) { const note = arpeggiator.getNextNote(); if (note) { const frequency = 440 * Math.pow(2, (note - 69) / 12); oscillator.frequency.setTargetAtTime(frequency, audioContext.currentTime, 0.003); gainNode.gain.setTargetAtTime(0.3, audioContext.currentTime, 0.003); gainNode.gain.setTargetAtTime(0, audioContext.currentTime + 0.1, 0.003); } } else { gainNode.gain.setTargetAtTime(0.3, audioContext.currentTime, 0.003); gainNode.gain.setTargetAtTime(0, audioContext.currentTime + 0.1, 0.003); } } } // Set up timing for sequencer const stepInterval = 60000 / (120 * 4); // 16th notes at 120 BPM setInterval(playStep, stepInterval); completeMemoryItem('features', 7); console.log("Step sequencer and arpeggiator implemented"); // Add sample import and manipulation features class SampleManager { constructor(audioContext) { this.audioContext = audioContext; this.samples = new Map(); } async loadSample(name, url) { const response = await fetch(url); const arrayBuffer = await response.arrayBuffer(); const audioBuffer = await this.audioContext.decodeAudioData(arrayBuffer); this.samples.set(name, audioBuffer); } getSample(name) { return this.samples.get(name); } playSample(name, pitchShift = 0, startTime = 0, duration = null) { const source = this.audioContext.createBufferSource(); source.buffer = this.samples.get(name); source.playbackRate.value = Math.pow(2, pitchShift / 12); const gainNode = this.audioContext.createGain(); source.connect(gainNode); gainNode.connect(this.audioContext.destination); source.start(this.audioContext.currentTime, startTime, duration); return { source, gainNode }; } } const sampleManager = new SampleManager(audioContext); // Add UI for sample management const sampleUI = document.createElement('div'); sampleUI.innerHTML = `

Sample Management

`; document.body.appendChild(sampleUI); document.getElementById('loadSample').addEventListener('click', async () => { const fileInput = document.getElementById('sampleUpload'); if (fileInput.files.length > 0) { const file = fileInput.files[0]; const arrayBuffer = await file.arrayBuffer(); const audioBuffer = await audioContext.decodeAudioData(arrayBuffer); sampleManager.samples.set(file.name, audioBuffer); console.log(`Loaded sample: ${file.name}`); } }); document.getElementById('playSample').addEventListener('click', () => { const sampleName = Array.from(sampleManager.samples.keys())[0]; // Play the first loaded sample if (sampleName) { const pitchShift = parseFloat(document.getElementById('samplePitchShift').value); const startTime = parseFloat(document.getElementById('sampleStartTime').value); const duration = parseFloat(document.getElementById('sampleDuration').value); sampleManager.playSample(sampleName, pitchShift, startTime, duration); } else { console.log('No sample loaded'); } }); completeMemoryItem('features', 8); console.log("Sample import and manipulation features implemented"); // Create a visual patch editor for modular synthesis class ModularSynth { constructor(audioContext) { this.audioContext = audioContext; this.modules = new Map(); this.connections = new Set(); } createModule(type, name) { let module; switch (type) { case 'oscillator': module = this.audioContext.createOscillator(); module.start(); break; case 'gain': module = this.audioContext.createGain(); break; case 'filter': module = this.audioContext.createBiquadFilter(); break; // Add more module types as needed } this.modules.set(name, module); return module; } connect(fromName, toName) { const fromModule = this.modules.get(fromName); const toModule = this.modules.get(toName); if (fromModule && toModule) { fromModule.connect(toModule); this.connections.add(`${fromName}->${toName}`); } } disconnect(fromName, toName) { const fromModule = this.modules.get(fromName); const toModule = this.modules.get(toName); if (fromModule && toModule) { fromModule.disconnect(toModule); this.connections.delete(`${fromName}->${toName}`); } } } const modularSynth = new ModularSynth(audioContext); // Create UI for modular synth const modularUI = document.createElement('div'); modularUI.innerHTML = `

Modular Synth

`; document.body.appendChild(modularUI); function updateModuleList() { const moduleList = document.getElementById('moduleList'); const fromModule = document.getElementById('fromModule'); const toModule = document.getElementById('toModule'); moduleList.innerHTML = ''; fromModule.innerHTML = ''; toModule.innerHTML = ''; for (const [name, module] of modularSynth.modules) { moduleList.innerHTML += `
${name}: ${module.constructor.name}
`; fromModule.innerHTML += ``; toModule.innerHTML += ``; } } document.getElementById('addModule').addEventListener('click', () => { const type = document.getElementById('moduleType').value; const name = document.getElementById('moduleName').value; if (name && !modularSynth.modules.has(name)) { modularSynth.createModule(type, name); updateModuleList(); } }); document.getElementById('connect').addEventListener('click', () => { const fromName = document.getElementById('fromModule').value; const toName = document.getElementById('toModule').value; modularSynth.connect(fromName, toName); }); document.getElementById('disconnect').addEventListener('click', () => { const fromName = document.getElementById('fromModule').value; const toName = document.getElementById('toModule').value; modularSynth.disconnect(fromName, toName); }); completeMemoryItem('features', 9); console.log("Visual patch editor for modular synthesis implemented"); // At this point, we've implemented all 10 features from our checklist. // Now, let's start working on the UI improvements from our checklist. // Implement responsive design for mobile devices const styleElement = document.createElement('style'); styleElement.textContent = ` @media (max-width: 768px) { body { font-size: 14px; } .synth-container { flex-direction: column; } .xy-pad { height: 200px; } .slider-container { width: 100%; } } `; document.head.appendChild(styleElement); completeMemoryItem('ui', 0); console.log("Responsive design implemented"); // Create dark/light theme toggle const themeToggle = document.createElement('button'); themeToggle.textContent = 'Toggle Theme'; themeToggle.addEventListener('click', () => { document.body.classList.toggle('light-theme'); }); document.body.appendChild(themeToggle); const themeStyles = document.createElement('style'); themeStyles.textContent = ` body.light-theme { background-color: #f0f0f0; color: #333; } body.light-theme .synth-container { background-color: #fff; } body.light-theme .slider { background: #ddd; } body.light-theme .slider::-webkit-slider-thumb { background: #4caf50; } body.light-theme .slider::-moz-range-thumb { background: #4caf50; } `; document.head.appendChild(themeStyles); completeMemoryModule('ui', 1); console.log("Dark/light theme toggle implemented"); // Add accessibility features function addAccessibilityFeatures() { // Add ARIA labels to all inputs document.querySelectorAll('input, select, button').forEach(el => { if (!el.getAttribute('aria-label')) { el.setAttribute('aria-label', el.previousElementSibling?.textContent || el.name || el.id); } }); // Add keyboard navigation for XY pad const xyPad = document.getElementById('xyPad'); xyPad.setAttribute('tabindex', '0'); xyPad.setAttribute('role', 'slider'); xyPad.setAttribute('aria-valuemin', '0'); xyPad.setAttribute('aria-valuemax', '100'); xyPad.addEventListener('keydown', (e) => { const step = 1; let x = parseFloat(xyPad.getAttribute('aria-valuenow-x') || 50); let y = parseFloat(xyPad.getAttribute('aria-valuenow-y') || 50); switch (e.key) { case 'ArrowUp': y = Math.max(0, y - step); break; case 'ArrowDown': y = Math.min(100, y + step); break; case 'ArrowLeft': x = Math.max(0, x - step); break; case 'ArrowRight': x = Math.min(100, x + step); break; } xyPad.setAttribute('aria-valuenow-x', x); xyPad.setAttribute('aria-valuenow-y', y); updateAudioParams(x / 100, y / 100); }); } addAccessibilityFeatures(); completeMemoryModule('ui', 2); console.log("Accessibility features implemented"); // Implement localization const translations = { en: { title: 'COSMOSCILLATOR', play: 'Play', stop: 'Stop', record: 'Record', volume: 'Volume', frequency: 'Frequency', waveform: 'Waveform' }, es: { title: 'COSMOCILADOR', play: 'Reproducir', stop: 'Detener', record: '