EncodeTheCode · May 12, 2026 15:48
diff --git a/polyphonic_tune_player_cursed_v1.htm b/polyphonic_tune_player_cursed_v1.htm
 <!DOCTYPE html>
 <html lang="en">
 <head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>24 Voice Polyphonic Chiptune Player</title>
  <style>
    body {
      margin: 0;
      background: #0d0d12;
      color: #f5f5f5;
      font-family: Arial, sans-serif;
      overflow-x: hidden;
    }

    .container {
      max-width: 1100px;
      margin: auto;
      padding: 24px;
    }

    .player {
      background: #171722;
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 0 30px rgba(0,0,0,0.4);
    }

    h1 {
      margin-top: 0;
      font-size: 32px;
    }

    .drop-zone {
      border: 2px dashed #666;
      border-radius: 16px;
      padding: 40px;
      text-align: center;
      transition: 0.25s;
      margin-bottom: 20px;
      background: rgba(255,255,255,0.02);
    }

    .drop-zone.dragover {
      border-color: #66d9ef;
      background: rgba(102,217,239,0.08);
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 18px;
    }

    button {
      border: none;
      background: #66d9ef;
      color: black;
      padding: 12px 18px;
      border-radius: 10px;
      font-weight: bold;
      cursor: pointer;
      transition: 0.2s;
    }

    button:hover {
      transform: scale(1.05);
    }

    button:disabled {
      opacity: 0.4;
      cursor: not-allowed;
    }

    .sliders {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }

    .slider-group {
      background: rgba(255,255,255,0.03);
      padding: 16px;
      border-radius: 12px;
    }

    label {
      display: block;
      margin-bottom: 8px;
      font-size: 14px;
    }

    input[type="range"] {
      width: 100%;
    }

    canvas {
      width: 100%;
      height: 120px;
      background: black;
      border-radius: 12px;
      margin-top: 22px;
    }

    .status {
      margin-top: 12px;
      color: #a8a8a8;
    }

    .file-name {
      margin-top: 12px;
      font-weight: bold;
      color: #66d9ef;
    }

    .footer {
      margin-top: 20px;
      opacity: 0.6;
      font-size: 13px;
    }
  </style>
 </head>
 <body>
  <div class="container">
    <div class="player">
      <h1>24 Voice Polyphonic Chiptune Converter</h1>

      <div class="drop-zone" id="dropZone">
        Drag & Drop MP3 / WAV Here<br />
        <small>Realtime conversion into classic early 2000s Sony-style polyphonic ringtone tone synthesis</small>
      </div>

      <input type="file" id="fileInput" accept="audio/*" hidden />

      <div class="controls">
        <button id="browseBtn">Browse</button>
        <button id="playBtn" disabled>Play</button>
        <button id="pauseBtn" disabled>Pause</button>
        <button id="stopBtn" disabled>Stop</button>
        <button id="saveBtn" disabled>Save Polyphonic MP3</button>
      </div>

      <div class="sliders">
        <div class="slider-group">
          <label>Bit Crush Depth</label>
          <input type="range" id="bitDepth" min="2" max="12" value="5" />
        </div>

        <div class="slider-group">
          <label>Sample Rate Reduction</label>
          <input type="range" id="sampleRate" min="4000" max="22050" value="9000" />
        </div>

        <div class="slider-group">
          <label>Polyphony Voices</label>
          <input type="range" id="polyphony" min="4" max="24" value="24" />
        </div>

        <div class="slider-group">
          <label>Delay / Resonance</label>
          <input type="range" id="delayMix" min="0" max="1" step="0.01" value="0.24" />
        </div>
      </div>

      <canvas id="visualizer"></canvas>

      <div class="file-name" id="fileName">No file loaded</div>
      <div class="status" id="status">Idle</div>

      <div class="footer">
        Engine: Web Audio API | 24 Voice Polyphonic Synth Emulation | Memory Optimized Streaming
      </div>
    </div>
  </div>

  <script src="https://cdn.jsdelivr.net/npm/lamejs@1.2.1/lame.min.js"></script>

  <script>
    const audioCtx = new (window.AudioContext || window.webkitAudioContext)({ latencyHint: 'interactive' });

    const dropZone = document.getElementById('dropZone');
    const fileInput = document.getElementById('fileInput');
    const browseBtn = document.getElementById('browseBtn');
    const playBtn = document.getElementById('playBtn');
    const pauseBtn = document.getElementById('pauseBtn');
    const stopBtn = document.getElementById('stopBtn');
    const saveBtn = document.getElementById('saveBtn');
    const fileName = document.getElementById('fileName');
    const statusEl = document.getElementById('status');

    const bitDepthSlider = document.getElementById('bitDepth');
    const sampleRateSlider = document.getElementById('sampleRate');
    const polyphonySlider = document.getElementById('polyphony');
    const delayMixSlider = document.getElementById('delayMix');

    const canvas = document.getElementById('visualizer');
    const ctx = canvas.getContext('2d');

    let sourceNode;
    let audioBuffer;
    let analyser;
    let processor;
    let delayNode;
    let feedbackNode;
    let lowpass;
    let mediaDest;
    let mediaRecorder;
    let recordedChunks = [];
    let isPaused = false;
    let startTime = 0;
    let pauseOffset = 0;
    let animationId;

    const VOICE_COUNT = 24;

    canvas.width = canvas.clientWidth;
    canvas.height = canvas.clientHeight;

    function setStatus(msg) {
      statusEl.textContent = msg;
    }

    browseBtn.onclick = () => fileInput.click();

    fileInput.onchange = e => {
      const file = e.target.files[0];
      if (file) loadFile(file);
    };

    dropZone.addEventListener('dragover', e => {
      e.preventDefault();
      dropZone.classList.add('dragover');
    });

    dropZone.addEventListener('dragleave', () => {
      dropZone.classList.remove('dragover');
    });

    dropZone.addEventListener('drop', e => {
      e.preventDefault();
      dropZone.classList.remove('dragover');

      const file = e.dataTransfer.files[0];
      if (file) loadFile(file);
    });

    async function loadFile(file) {
      setStatus('Loading and preparing realtime polyphonic synthesis...');

      const arrayBuffer = await file.arrayBuffer();
      audioBuffer = await audioCtx.decodeAudioData(arrayBuffer);

      fileName.textContent = file.name;

      playBtn.disabled = false;
      stopBtn.disabled = false;
      saveBtn.disabled = false;

      setStatus('Ready');
    }

    function createChiptuneProcessor() {
      processor = audioCtx.createScriptProcessor(2048, 2, 2);

      let phase = 0;
      let heldSample = 0;
      let sampleCounter = 0;

      processor.onaudioprocess = e => {
        const inputL = e.inputBuffer.getChannelData(0);
        const outputL = e.outputBuffer.getChannelData(0);
        const outputR = e.outputBuffer.getChannelData(1);

        const bits = parseInt(bitDepthSlider.value);
        const norm = Math.pow(2, bits - 1);

        const reduction = parseInt(sampleRateSlider.value);
        const sampleStep = audioCtx.sampleRate / reduction;

        const polyphony = parseInt(polyphonySlider.value);

        for (let i = 0; i < inputL.length; i++) {
          sampleCounter++;

          if (sampleCounter >= sampleStep) {
            sampleCounter = 0;
            heldSample = inputL[i];
          }

          let crushed = Math.round(heldSample * norm) / norm;

          let synth = 0;

          for (let v = 0; v < polyphony; v++) {
            const harmonic = v + 1;
            const freqScale = 1 + harmonic * 0.003;

            phase += (0.02 * freqScale);

            const square = Math.sin(phase * harmonic) > 0 ? 1 : -1;
            synth += square * crushed * (1 / harmonic);
          }

          synth /= polyphony * 0.3;

          outputL[i] = synth;
          outputR[i] = synth;
        }
      };

      return processor;
    }

    function setupAudioGraph() {
      analyser = audioCtx.createAnalyser();
      analyser.fftSize = 2048;

      lowpass = audioCtx.createBiquadFilter();
      lowpass.type = 'lowpass';
      lowpass.frequency.value = 7200;

      delayNode = audioCtx.createDelay();
      delayNode.delayTime.value = 0.08;

      feedbackNode = audioCtx.createGain();
      feedbackNode.gain.value = delayMixSlider.value;

      mediaDest = audioCtx.createMediaStreamDestination();

      processor = createChiptuneProcessor();

      processor.connect(lowpass);
      lowpass.connect(delayNode);
      delayNode.connect(feedbackNode);
      feedbackNode.connect(delayNode);

      delayNode.connect(analyser);
      analyser.connect(audioCtx.destination);
      analyser.connect(mediaDest);
    }

    function cleanup() {
      if (sourceNode) {
        try { sourceNode.stop(); } catch (e) {}
        sourceNode.disconnect();
      }

      if (processor) processor.disconnect();
      if (delayNode) delayNode.disconnect();
      if (feedbackNode) feedbackNode.disconnect();
      if (lowpass) lowpass.disconnect();

      cancelAnimationFrame(animationId);
    }

    playBtn.onclick = async () => {
      if (!audioBuffer) return;

      cleanup();
      setupAudioGraph();

      await audioCtx.resume();

      sourceNode = audioCtx.createBufferSource();
      sourceNode.buffer = audioBuffer;

      sourceNode.connect(processor);

      setStatus('Realtime 24 voice polyphonic rendering...');

      recordedChunks = [];
      mediaRecorder = new MediaRecorder(mediaDest.stream);

      mediaRecorder.ondataavailable = e => {
        if (e.data.size > 0) recordedChunks.push(e.data);
      };

      mediaRecorder.start();

      const offset = isPaused ? pauseOffset : 0;

      startTime = audioCtx.currentTime - offset;
      sourceNode.start(0, offset);

      playBtn.disabled = true;
      pauseBtn.disabled = false;

      isPaused = false;

      visualize();

      sourceNode.onended = () => {
        if (!isPaused) {
          stopPlayback();
        }
      };
    };

    pauseBtn.onclick = () => {
      if (!sourceNode) return;

      pauseOffset = audioCtx.currentTime - startTime;
      isPaused = true;

      cleanup();

      playBtn.disabled = false;

      setStatus('Paused');
    };

    stopBtn.onclick = stopPlayback;

    function stopPlayback() {
      cleanup();

      pauseOffset = 0;
      isPaused = false;

      playBtn.disabled = false;
      pauseBtn.disabled = true;

      setStatus('Stopped');

      if (mediaRecorder && mediaRecorder.state !== 'inactive') {
        mediaRecorder.stop();
      }
    }

    saveBtn.onclick = async () => {
      if (!recordedChunks.length) {
        alert('Play the track fully before exporting.');
        return;
      }

      setStatus('Encoding MP3...');

      const blob = new Blob(recordedChunks, { type: 'audio/webm' });

      const audio = await blob.arrayBuffer();
      const decoded = await audioCtx.decodeAudioData(audio);

      const samples = decoded.getChannelData(0);

      const mp3encoder = new lamejs.Mp3Encoder(1, decoded.sampleRate, 128);
      const sampleBlockSize = 1152;

      let mp3Data = [];

      for (let i = 0; i < samples.length; i += sampleBlockSize) {
        const sampleChunk = samples.subarray(i, i + sampleBlockSize);

        const int16 = new Int16Array(sampleChunk.length);

        for (let j = 0; j < sampleChunk.length; j++) {
          int16[j] = sampleChunk[j] * 32767;
        }

        const mp3buf = mp3encoder.encodeBuffer(int16);

        if (mp3buf.length > 0) {
          mp3Data.push(mp3buf);
        }
      }

      const end = mp3encoder.flush();

      if (end.length > 0) {
        mp3Data.push(end);
      }

      const mp3Blob = new Blob(mp3Data, { type: 'audio/mp3' });

      const url = URL.createObjectURL(mp3Blob);

      const a = document.createElement('a');
      a.href = url;
      a.download = 'polyphonic_ringtone.mp3';
      a.click();

      setStatus('MP3 exported');
    };

    function visualize() {
      const bufferLength = analyser.frequencyBinCount;
      const dataArray = new Uint8Array(bufferLength);

      function draw() {
        animationId = requestAnimationFrame(draw);

        analyser.getByteFrequencyData(dataArray);

        ctx.fillStyle = 'black';
        ctx.fillRect(0, 0, canvas.width, canvas.height);

        const barWidth = (canvas.width / bufferLength) * 2.5;

        let x = 0;

        for (let i = 0; i < bufferLength; i++) {
          const barHeight = dataArray[i] / 2;

          ctx.fillStyle = `rgb(${barHeight + 80},255,180)`;
          ctx.fillRect(x, canvas.height - barHeight, barWidth, barHeight);

          x += barWidth + 1;
        }
      }

      draw();
    }

    delayMixSlider.oninput = () => {
      if (feedbackNode) {
        feedbackNode.gain.value = delayMixSlider.value;
      }
    };
  </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<title>24 Voice Polyphonic Chiptune Player</title>
	<style>
	body {
	margin: 0;
	background: #0d0d12;
	color: #f5f5f5;
	font-family: Arial, sans-serif;
	overflow-x: hidden;
	}

	.container {
	max-width: 1100px;
	margin: auto;
	padding: 24px;
	}

	.player {
	background: #171722;
	border-radius: 16px;
	padding: 24px;
	box-shadow: 0 0 30px rgba(0,0,0,0.4);
	}

	h1 {
	margin-top: 0;
	font-size: 32px;
	}

	.drop-zone {
	border: 2px dashed #666;
	border-radius: 16px;
	padding: 40px;
	text-align: center;
	transition: 0.25s;
	margin-bottom: 20px;
	background: rgba(255,255,255,0.02);
	}

	.drop-zone.dragover {
	border-color: #66d9ef;
	background: rgba(102,217,239,0.08);
	}

	.controls {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 18px;
	}

	button {
	border: none;
	background: #66d9ef;
	color: black;
	padding: 12px 18px;
	border-radius: 10px;
	font-weight: bold;
	cursor: pointer;
	transition: 0.2s;
	}

	button:hover {
	transform: scale(1.05);
	}

	button:disabled {
	opacity: 0.4;
	cursor: not-allowed;
	}

	.sliders {
	margin-top: 24px;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 20px;
	}

	.slider-group {
	background: rgba(255,255,255,0.03);
	padding: 16px;
	border-radius: 12px;
	}

	label {
	display: block;
	margin-bottom: 8px;
	font-size: 14px;
	}

	input[type="range"] {
	width: 100%;
	}

	canvas {
	width: 100%;
	height: 120px;
	background: black;
	border-radius: 12px;
	margin-top: 22px;
	}

	.status {
	margin-top: 12px;
	color: #a8a8a8;
	}

	.file-name {
	margin-top: 12px;
	font-weight: bold;
	color: #66d9ef;
	}

	.footer {
	margin-top: 20px;
	opacity: 0.6;
	font-size: 13px;
	}
	</style>
	</head>
	<body>
	<div class="container">
	<div class="player">
	<h1>24 Voice Polyphonic Chiptune Converter</h1>

	<div class="drop-zone" id="dropZone">
	Drag & Drop MP3 / WAV Here<br />
	<small>Realtime conversion into classic early 2000s Sony-style polyphonic ringtone tone synthesis</small>
	</div>

	<input type="file" id="fileInput" accept="audio/*" hidden />

	<div class="controls">
	<button id="browseBtn">Browse</button>
	<button id="playBtn" disabled>Play</button>
	<button id="pauseBtn" disabled>Pause</button>
	<button id="stopBtn" disabled>Stop</button>
	<button id="saveBtn" disabled>Save Polyphonic MP3</button>
	</div>

	<div class="sliders">
	<div class="slider-group">
	<label>Bit Crush Depth</label>
	<input type="range" id="bitDepth" min="2" max="12" value="5" />
	</div>

	<div class="slider-group">
	<label>Sample Rate Reduction</label>
	<input type="range" id="sampleRate" min="4000" max="22050" value="9000" />
	</div>

	<div class="slider-group">
	<label>Polyphony Voices</label>
	<input type="range" id="polyphony" min="4" max="24" value="24" />
	</div>

	<div class="slider-group">
	<label>Delay / Resonance</label>
	<input type="range" id="delayMix" min="0" max="1" step="0.01" value="0.24" />
	</div>
	</div>

	<canvas id="visualizer"></canvas>

	<div class="file-name" id="fileName">No file loaded</div>
	<div class="status" id="status">Idle</div>

	<div class="footer">
	Engine: Web Audio API \| 24 Voice Polyphonic Synth Emulation \| Memory Optimized Streaming
	</div>
	</div>
	</div>

	<script src="https://cdn.jsdelivr.net/npm/lamejs@1.2.1/lame.min.js"></script>

	<script>
	const audioCtx = new (window.AudioContext \|\| window.webkitAudioContext)({ latencyHint: 'interactive' });

	const dropZone = document.getElementById('dropZone');
	const fileInput = document.getElementById('fileInput');
	const browseBtn = document.getElementById('browseBtn');
	const playBtn = document.getElementById('playBtn');
	const pauseBtn = document.getElementById('pauseBtn');
	const stopBtn = document.getElementById('stopBtn');
	const saveBtn = document.getElementById('saveBtn');
	const fileName = document.getElementById('fileName');
	const statusEl = document.getElementById('status');

	const bitDepthSlider = document.getElementById('bitDepth');
	const sampleRateSlider = document.getElementById('sampleRate');
	const polyphonySlider = document.getElementById('polyphony');
	const delayMixSlider = document.getElementById('delayMix');

	const canvas = document.getElementById('visualizer');
	const ctx = canvas.getContext('2d');

	let sourceNode;
	let audioBuffer;
	let analyser;
	let processor;
	let delayNode;
	let feedbackNode;
	let lowpass;
	let mediaDest;
	let mediaRecorder;
	let recordedChunks = [];
	let isPaused = false;
	let startTime = 0;
	let pauseOffset = 0;
	let animationId;

	const VOICE_COUNT = 24;

	canvas.width = canvas.clientWidth;
	canvas.height = canvas.clientHeight;

	function setStatus(msg) {
	statusEl.textContent = msg;
	}

	browseBtn.onclick = () => fileInput.click();

	fileInput.onchange = e => {
	const file = e.target.files[0];
	if (file) loadFile(file);
	};

	dropZone.addEventListener('dragover', e => {
	e.preventDefault();
	dropZone.classList.add('dragover');
	});

	dropZone.addEventListener('dragleave', () => {
	dropZone.classList.remove('dragover');
	});

	dropZone.addEventListener('drop', e => {
	e.preventDefault();
	dropZone.classList.remove('dragover');

	const file = e.dataTransfer.files[0];
	if (file) loadFile(file);
	});

	async function loadFile(file) {
	setStatus('Loading and preparing realtime polyphonic synthesis...');

	const arrayBuffer = await file.arrayBuffer();
	audioBuffer = await audioCtx.decodeAudioData(arrayBuffer);

	fileName.textContent = file.name;

	playBtn.disabled = false;
	stopBtn.disabled = false;
	saveBtn.disabled = false;

	setStatus('Ready');
	}

	function createChiptuneProcessor() {
	processor = audioCtx.createScriptProcessor(2048, 2, 2);

	let phase = 0;
	let heldSample = 0;
	let sampleCounter = 0;

	processor.onaudioprocess = e => {
	const inputL = e.inputBuffer.getChannelData(0);
	const outputL = e.outputBuffer.getChannelData(0);
	const outputR = e.outputBuffer.getChannelData(1);

	const bits = parseInt(bitDepthSlider.value);
	const norm = Math.pow(2, bits - 1);

	const reduction = parseInt(sampleRateSlider.value);
	const sampleStep = audioCtx.sampleRate / reduction;

	const polyphony = parseInt(polyphonySlider.value);

	for (let i = 0; i < inputL.length; i++) {
	sampleCounter++;

	if (sampleCounter >= sampleStep) {
	sampleCounter = 0;
	heldSample = inputL[i];
	}

	let crushed = Math.round(heldSample * norm) / norm;

	let synth = 0;

	for (let v = 0; v < polyphony; v++) {
	const harmonic = v + 1;
	const freqScale = 1 + harmonic * 0.003;

	phase += (0.02 * freqScale);

	const square = Math.sin(phase * harmonic) > 0 ? 1 : -1;
	synth += square * crushed * (1 / harmonic);
	}

	synth /= polyphony * 0.3;

	outputL[i] = synth;
	outputR[i] = synth;
	}
	};

	return processor;
	}

	function setupAudioGraph() {
	analyser = audioCtx.createAnalyser();
	analyser.fftSize = 2048;

	lowpass = audioCtx.createBiquadFilter();
	lowpass.type = 'lowpass';
	lowpass.frequency.value = 7200;

	delayNode = audioCtx.createDelay();
	delayNode.delayTime.value = 0.08;

	feedbackNode = audioCtx.createGain();
	feedbackNode.gain.value = delayMixSlider.value;

	mediaDest = audioCtx.createMediaStreamDestination();

	processor = createChiptuneProcessor();

	processor.connect(lowpass);
	lowpass.connect(delayNode);
	delayNode.connect(feedbackNode);
	feedbackNode.connect(delayNode);

	delayNode.connect(analyser);
	analyser.connect(audioCtx.destination);
	analyser.connect(mediaDest);
	}

	function cleanup() {
	if (sourceNode) {
	try { sourceNode.stop(); } catch (e) {}
	sourceNode.disconnect();
	}

	if (processor) processor.disconnect();
	if (delayNode) delayNode.disconnect();
	if (feedbackNode) feedbackNode.disconnect();
	if (lowpass) lowpass.disconnect();

	cancelAnimationFrame(animationId);
	}

	playBtn.onclick = async () => {
	if (!audioBuffer) return;

	cleanup();
	setupAudioGraph();

	await audioCtx.resume();

	sourceNode = audioCtx.createBufferSource();
	sourceNode.buffer = audioBuffer;

	sourceNode.connect(processor);

	setStatus('Realtime 24 voice polyphonic rendering...');

	recordedChunks = [];
	mediaRecorder = new MediaRecorder(mediaDest.stream);

	mediaRecorder.ondataavailable = e => {
	if (e.data.size > 0) recordedChunks.push(e.data);
	};

	mediaRecorder.start();

	const offset = isPaused ? pauseOffset : 0;

	startTime = audioCtx.currentTime - offset;
	sourceNode.start(0, offset);

	playBtn.disabled = true;
	pauseBtn.disabled = false;

	isPaused = false;

	visualize();

	sourceNode.onended = () => {
	if (!isPaused) {
	stopPlayback();
	}
	};
	};

	pauseBtn.onclick = () => {
	if (!sourceNode) return;

	pauseOffset = audioCtx.currentTime - startTime;
	isPaused = true;

	cleanup();

	playBtn.disabled = false;

	setStatus('Paused');
	};

	stopBtn.onclick = stopPlayback;

	function stopPlayback() {
	cleanup();

	pauseOffset = 0;
	isPaused = false;

	playBtn.disabled = false;
	pauseBtn.disabled = true;

	setStatus('Stopped');

	if (mediaRecorder && mediaRecorder.state !== 'inactive') {
	mediaRecorder.stop();
	}
	}

	saveBtn.onclick = async () => {
	if (!recordedChunks.length) {
	alert('Play the track fully before exporting.');
	return;
	}

	setStatus('Encoding MP3...');

	const blob = new Blob(recordedChunks, { type: 'audio/webm' });

	const audio = await blob.arrayBuffer();
	const decoded = await audioCtx.decodeAudioData(audio);

	const samples = decoded.getChannelData(0);

	const mp3encoder = new lamejs.Mp3Encoder(1, decoded.sampleRate, 128);
	const sampleBlockSize = 1152;

	let mp3Data = [];

	for (let i = 0; i < samples.length; i += sampleBlockSize) {
	const sampleChunk = samples.subarray(i, i + sampleBlockSize);

	const int16 = new Int16Array(sampleChunk.length);

	for (let j = 0; j < sampleChunk.length; j++) {
	int16[j] = sampleChunk[j] * 32767;
	}

	const mp3buf = mp3encoder.encodeBuffer(int16);

	if (mp3buf.length > 0) {
	mp3Data.push(mp3buf);
	}
	}

	const end = mp3encoder.flush();

	if (end.length > 0) {
	mp3Data.push(end);
	}

	const mp3Blob = new Blob(mp3Data, { type: 'audio/mp3' });

	const url = URL.createObjectURL(mp3Blob);

	const a = document.createElement('a');
	a.href = url;
	a.download = 'polyphonic_ringtone.mp3';
	a.click();

	setStatus('MP3 exported');
	};

	function visualize() {
	const bufferLength = analyser.frequencyBinCount;
	const dataArray = new Uint8Array(bufferLength);

	function draw() {
	animationId = requestAnimationFrame(draw);

	analyser.getByteFrequencyData(dataArray);

	ctx.fillStyle = 'black';
	ctx.fillRect(0, 0, canvas.width, canvas.height);

	const barWidth = (canvas.width / bufferLength) * 2.5;

	let x = 0;

	for (let i = 0; i < bufferLength; i++) {
	const barHeight = dataArray[i] / 2;

	ctx.fillStyle = `rgb(${barHeight + 80},255,180)`;
	ctx.fillRect(x, canvas.height - barHeight, barWidth, barHeight);

	x += barWidth + 1;
	}
	}

	draw();
	}

	delayMixSlider.oninput = () => {
	if (feedbackNode) {
	feedbackNode.gain.value = delayMixSlider.value;
	}
	};
	</script>
	</body>
	</html>
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