diff --git a/html/rawaudio.html b/html/rawaudio.html
new file mode 100644
index 0000000..994b699
--- /dev/null
+++ b/html/rawaudio.html
@@ -0,0 +1,412 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+		<title>Raw Audio Player</title>
+		<meta name="description" content="Plays raw audio data from sample data.">
+		<meta name="keywords" content="Audio, Raw, PCM, Player">
+		<meta property="og:title" content="Raw Audio Player">
+		<meta property="og:type" content="website">
+		<meta property="og:url" content="https://mysterypancake.github.io/Fun/html/rawaudio">
+		<meta property="og:site_name" content="Raw Audio Player">
+		<meta property="og:description" content="Plays raw audio data from sample data.">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<style>
+		* {
+			font-family: system-ui, Arial, Helvetica, sans-serif;
+		}
+
+		textarea, input[type="text"], input[type="number"] {
+			box-sizing: border-box;
+			width: 100%;
+		}
+
+		input[type="range"] {
+			width: 12rem;
+		}
+
+		textarea {
+			resize: vertical;
+		}
+
+		button {
+			background-color: #0d6efd;
+			border-radius: 0.5rem;
+			border: none;
+			color: white;
+			cursor: pointer;
+			padding: 0.5rem;
+		}
+
+		button:hover {
+			background-color: #0b5ed7;
+		}
+
+		a.disabled > button {
+			background-color: #5a5a5a;
+			cursor: default;
+		}
+		</style>
+		<script>
+		let canvElem, canvCtx, leftElem, rightElem, sepElem, removeDC, normalize, volElem, pitchElem, rateElem, loopElem, downloadElem, dataLeft, dataRight, pitchLabel, volLabel;
+
+		function setup() {
+			canvElem = document.getElementById("canvElem");
+			canvElem.width = canvElem.parentElement.clientWidth;
+			canvCtx = canvElem.getContext("2d", { alpha: false });
+
+			leftElem = document.getElementById("leftElem");
+			leftElem.addEventListener("input", updateWithBuffer);
+
+			rightElem = document.getElementById("rightElem");
+			rightElem.addEventListener("input", updateWithBuffer);
+
+			downloadElem = document.getElementById("download");
+
+			sepElem = document.getElementById("sepElem");
+			sepElem.addEventListener("input", updateWithBuffer);
+
+			removeDC = document.getElementById("removeDC");
+			removeDC.addEventListener("change", updateWithBuffer);
+
+			normalize = document.getElementById("normalize");
+			normalize.addEventListener("change", updateWithBuffer);
+
+			rateElem = document.getElementById("sampleRate");
+			rateElem.addEventListener("change", updateWithBuffer)
+
+			const play = document.getElementById("play");
+			play.addEventListener("click", toggleAudio);
+
+			volElem = document.getElementById("volume");
+			volElem.addEventListener("input", setVolume);
+
+			volLabel = document.getElementById("volumeLabel");
+			volLabel.textContent = `${Math.floor(parseFloat(volElem.value) * 100)}%`;
+
+			pitchElem = document.getElementById("pitch");
+			pitchElem.addEventListener("input", setPitch);
+
+			pitchLabel = document.getElementById("pitchLabel");
+			pitchLabel.textContent = `${pitchElem.value} cents`;
+
+			loopElem = document.getElementById("loop");
+			loopElem.addEventListener("change", toggleAudio);
+
+			updateData();
+		}
+
+		function interleave(inputL, inputR) {
+			const length = inputL.length + inputR.length;
+			const result = new Float32Array(length);
+			let index = 0;
+			let inputIndex = 0;
+			while (index < length) {
+				result[index++] = inputL[inputIndex];
+				result[index++] = inputR[inputIndex];
+				inputIndex++;
+			}
+			return result;
+		}
+
+		function floatTo16Bit(output, offset, input) {
+			for (let i = 0; i < input.length; i++, offset += 2) {
+				const s = Math.max(-1, Math.min(1, input[i]));
+				output.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true);
+			}
+		}
+
+		function floatTo32Bit(output, offset, input) {
+			for (let i = 0; i < input.length; i++, offset += 4) {
+				output.setFloat32(offset, input[i], true);
+			}
+		}
+
+		function writeString(view, offset, str) {
+			for (let i = 0; i < str.length; i++) {
+				view.setUint8(offset + i, str.charCodeAt(i));
+			}
+		}
+
+		function encodeWAV(samples, format, sampleRate, numChannels, bitDepth) {
+			const bytesPerSample = bitDepth / 8;
+			const blockAlign = numChannels * bytesPerSample;
+			const buffer = new ArrayBuffer(44 + samples.length * bytesPerSample);
+			const view = new DataView(buffer);
+			writeString(view, 0, "RIFF");
+			view.setUint32(4, 36 + samples.length * bytesPerSample, true);
+			writeString(view, 8, "WAVE");
+			writeString(view, 12, "fmt ");
+			view.setUint32(16, 16, true);
+			view.setUint16(20, format, true);
+			view.setUint16(22, numChannels, true);
+			view.setUint32(24, sampleRate, true);
+			view.setUint32(28, sampleRate * blockAlign, true);
+			view.setUint16(32, blockAlign, true);
+			view.setUint16(34, bitDepth, true);
+			writeString(view, 36, "data");
+			view.setUint32(40, samples.length * blockAlign, true);
+			if (format === 1) {
+				floatTo16Bit(view, 44, samples);
+			} else {
+				floatTo32Bit(view, 44, samples);
+			}
+			return view;
+		}
+
+		function bufferToFile(name, buffer, float32) {
+			let interleaved;
+			const numChannels = Math.min(buffer.numberOfChannels, 2);
+			if (numChannels === 2) {
+				interleaved = interleave(buffer.getChannelData(0), buffer.getChannelData(1));
+			} else {
+				interleaved = buffer.getChannelData(0);
+			}
+			const view = encodeWAV(interleaved, float32 ? 3 : 1, buffer.sampleRate, numChannels, float32 ? 32 : 16);
+			return new File([view], name + ".wav", { type: "audio/wav" });
+		}
+
+		function readSamples(elem) {
+			let samples = [];
+			const strings = elem.value.split(sepElem.value);
+
+			for (let i = 0; i < strings.length; ++i) {
+				const str = strings[i].trim();
+				if (!str) continue;
+
+				const num = parseFloat(str);
+				if (isNaN(num)) {
+					window.alert(`Invalid number: ${str}`);
+					return;
+				}
+
+				samples.push(num);
+			};
+			return new Float32Array(samples);
+		}
+
+		function updateData() {
+			dataLeft = readSamples(leftElem);
+			dataRight = readSamples(rightElem);
+			if (!dataLeft || !dataRight) return;
+
+			const hasRight = dataRight.length > 0;
+			if (hasRight && dataLeft.length !== dataRight.length) {
+				window.alert(`Mismatching left and right channel lengths: ${dataLeft.length} and ${dataRight.length}`);
+				return;
+			}
+
+			if (removeDC.checked) {
+				// Calculate the DC offset
+				let DC = 0;
+				for (let i = 0; i < dataLeft.length; ++i) {
+					DC += dataLeft[i];
+					if (hasRight) {
+						DC += dataRight[i];
+					}
+				}
+				DC /= dataLeft.length + dataRight.length;
+
+				// Offset by the DC to normalize
+				for (let i = 0; i < dataLeft.length; ++i) {
+					dataLeft[i] -= DC;
+					if (hasRight) {
+						dataRight[i] -= DC;
+					}
+				}
+			}
+
+			if (normalize.checked) {
+				// Find the maximum sample
+				let max = 0;
+				for (let i = 0; i < dataLeft.length; ++i) {
+					max = Math.max(Math.abs(dataLeft[i]), max);
+					if (hasRight) {
+						max = Math.max(Math.abs(dataRight[i]), max);
+					}
+				}
+
+				// Divide by the maximum to normalize
+				for (let i = 0; i < dataLeft.length; ++i) {
+					dataLeft[i] /= max;
+					if (hasRight) {
+						dataRight[i] /= max;
+					}
+				}
+			}
+			draw();
+		}
+
+		function drawLine(x1, y1, x2, y2) {
+			canvCtx.beginPath();
+			canvCtx.moveTo(x1, y1);
+			canvCtx.lineTo(x2, y2);
+			canvCtx.stroke();
+		}
+
+		function drawChannelData(data) {
+			canvCtx.beginPath();
+			for (let i = 0; i < data.length; ++i) {
+				const xPos = i / (data.length - 1) * canvElem.width;
+				const yPos = canvElem.height * 0.5 - data[i] * canvElem.height * 0.4;
+				canvCtx.lineTo(xPos, yPos);
+			}
+			canvCtx.stroke();
+		}
+
+		function draw() {
+			// Clear canvas
+			canvCtx.fillStyle = "black";
+			canvCtx.fillRect(0, 0, canvElem.width, canvElem.height);
+
+			// DC offset
+			canvCtx.lineWidth = 2;
+			canvCtx.strokeStyle = "gray";
+			let yPos = canvElem.height * 0.5;
+			drawLine(0, yPos, canvElem.width, yPos);
+
+			// 1 and -1
+			canvCtx.strokeStyle = "red";
+			yPos = canvElem.height * 0.1;
+			drawLine(0, yPos, canvElem.width, yPos);
+			yPos = canvElem.height * 0.9;
+			drawLine(0, yPos, canvElem.width, yPos);
+
+			canvCtx.strokeStyle = "white";
+			if (dataLeft) drawChannelData(dataLeft);
+			if (dataRight) drawChannelData(dataRight);
+		}
+
+		let audioCtx, gainNode, bufferSource, buffer, lastFile;
+
+		function ensureContext() {
+			if (audioCtx) return;
+			audioCtx = new (window.AudioContext || window.webkitAudioContext)();
+			gainNode = audioCtx.createGain();
+			gainNode.connect(audioCtx.destination);
+			setVolume();
+		}
+
+		function updateBuffer() {
+			const sampleRate = parseInt(rateElem.value, 10);
+			buffer = audioCtx.createBuffer(dataRight.length ? 2 : 1, dataLeft.length, sampleRate);
+			buffer.copyToChannel(dataLeft, 0);
+			if (dataRight.length) {
+				buffer.copyToChannel(dataRight, 1);
+			}
+
+			if (lastFile) {
+				window.URL.revokeObjectURL(lastFile);
+			}
+			lastFile = bufferToFile("audio", buffer, true);
+			downloadElem.href = window.URL.createObjectURL(lastFile);
+			downloadElem.download = "audio.wav";
+			downloadElem.classList.remove("disabled");
+		}
+
+		function toggleAudio() {
+			ensureContext();
+			if (!buffer) updateBuffer();
+
+			if (bufferSource && bufferSource.loop) {
+				bufferSource.stop();
+				bufferSource = undefined;
+			} else {
+				bufferSource = audioCtx.createBufferSource();
+				bufferSource.buffer = buffer;
+				bufferSource.loop = loopElem.checked;
+				bufferSource.connect(gainNode);
+				setPitch();
+				bufferSource.start();
+			}
+		}
+
+		function setVolume() {
+			const volume = parseFloat(volElem.value);
+			volLabel.textContent = `${Math.floor(volume * 100)}%`;
+			if (!gainNode) return;
+			gainNode.gain.setValueAtTime(volume, audioCtx.currentTime);
+		}
+
+		function setPitch() {
+			pitchLabel.textContent = `${pitchElem.value} cents`;
+			if (!bufferSource) return;
+			const pitch = parseFloat(pitchElem.value);
+			bufferSource.detune.setValueAtTime(pitch, audioCtx.currentTime);
+		}
+
+		function updateWithBuffer() {
+			updateData();
+			ensureContext();
+			updateBuffer();
+			
+			if (!bufferSource) return;
+			bufferSource.stop();
+			bufferSource = undefined;
+		}
+		</script>
+	</head>
+	<body onload="setup();">
+		<h1>Raw Audio Player</h1>
+		<div style="display: flex; margin-bottom: 0.5rem; column-gap: 0.5rem;">
+			<div style="display: inline-block; width: 100%;">
+				<label for="leftElem">Left channel samples</label>
+				<div>
+				<textarea id="leftElem" rows="5">0.089428,0.097762,0.113186,0.126448,0.127265,0.113342,0.096485,0.088473,0.079534,0.073895,0.073865,0.075789,0.084184,0.104966,0.133999,0.173435,0.206066,0.237890,0.265466,0.274259,0.285645,0.293022,0.290764,0.282173,0.256440,0.233392,0.214198,0.189458,0.166033,0.147406,0.130749,0.108644,0.096628,0.088517,0.070687,0.060164,0.063349,0.067210,0.074544,0.079722,0.078298,0.091762,0.091042,0.090436,0.093237,0.108845,0.126126,0.157254,0.200149,0.239939,0.276041,0.298598,0.323680,0.336106,0.331689,0.323730,0.303663,0.278868,0.251893,0.224644,0.197930,0.175189,0.148155,0.125490,0.111051,0.086523,0.060907,0.045094,0.053001,0.067264,0.077510,0.078780,0.092155,0.098564,0.103912,0.110151,0.119872,0.132932,0.159227,0.198568,0.224647,0.256192,0.296285,0.326178,0.348955,0.360100,0.354382,0.340113,0.316868,0.289325,0.253879,0.219711,0.190760,0.158291,0.120670,0.087447,0.062189,0.049439,0.041375,0.035689,0.027049,0.030061,0.034471,0.037572,0.035628,0.032248,0.036692,0.046307,0.058146,0.078882,0.106043,0.135455,0.177753,0.227125,0.288004,0.323619,0.342133,0.354606,0.359628,0.353130,0.328012,0.296140,0.266072,0.243032,0.224394,0.209595,0.189309,0.169867,0.151282,0.117862,0.100429,0.084389,0.090650,0.093450,0.096756,0.087069,0.083310,0.089854,0.098967,0.106194,0.116013,0.130812,0.163130,0.188605,0.216787,0.248021,0.266995,0.278381,0.290187,0.298146,0.292077,0.283880,0.261141,0.234490,0.206807,0.180860,0.155157,0.126543,0.102430,0.081206,0.062388,0.046348,0.037361,0.034499,0.037102,0.037694,0.036287,0.036060,0.039088,0.047734,0.057654,0.065642,0.074996,0.092904,0.122382,0.156924,0.193308,0.230879,0.276780,0.305922,0.326021,0.334148,0.323848,0.313920,0.290434,0.265252,0.239611,0.207650,0.181567,0.159751,0.149609,0.146206,0.136861,0.137576,0.131750,0.086543,0.066777,0.059373,0.050932,0.050220,0.045830,0.051124,0.060963,0.069824,0.083248,0.109401,0.138183,0.168114,0.199810,0.225134,0.255294,0.277683,0.298051,0.304827,0.298141,0.288270,0.267519,0.243858,0.219113,0.195009,0.170589,0.150794,0.137435,0.115324,0.092113,0.082379,0.090494,0.086723,0.068586,0.051144,0.040521,0.044714,0.046874,0.049399,0.050474,0.053064,0.061112,0.080228,0.112563,0.156428,0.192086,0.234533,0.275780,0.299256,0.319295,0.334817,0.336420,0.331730,0.313404,0.291626,0.266719,0.240575,0.208064,0.181081,0.159989,0.136058,0.120832,0.116191,0.117380,0.064306,0.050771,0.052921,0.053939,0.054026,0.060668,0.061191,0.060259,0.064049,0.072761,0.089312,0.115254,0.148178,0.182784,0.217655,0.253762,0.274363,0.291738,0.302733,0.298859,0.292784,0.274922,0.251701,0.223505,0.193966,0.167834,0.140525,0.116869,0.093682,0.070897,0.061484,0.065157,0.076438,0.082617,0.069569,0.059716,0.047118,0.043690,0.043216,0.047738,0.054773,0.065630,0.087275,0.123514,0.161371,0.202842,0.255029,0.298711,0.318620,0.338945,0.354957,0.354477,0.346776,0.325419,0.303175,0.279459,0.250129,0.229420,0.208442,0.188316,0.167047,0.139951,0.118326,0.095856,0.061468,0.068059,0.068923,0.061936,0.052999,0.054213,0.063917,0.076720,0.087040,0.100438,0.122163,0.151747,0.186306,0.223549,0.256975,0.299401,0.313169,0.317556,0.319558,0.307994,0.294686,0.274161,0.252625,0.228364,0.204505,0.187510,0.173748,0.160416,0.142498,0.123776,0.110881,0.115866,0.088863,0.089939,0.092685,0.079065,0.088231,0.083848,0.086661,0.086547,0.089198,0.095377,0.112689,0.140768,0.175004,0.205799,0.241106,0.279926,0.305736,0.325826,0.334991,0.328362,0.321401,0.303413,0.284068,0.264845,0.246250,0.230372,0.212073,0.191016,0.172456,0.146421,0.132653,0.117493,0.075269,0.037189,0.017517,0.000713,-0.001408,0.008764,0.020025,0.030401,0.038139,0.050603,0.072893,0.104375,0.152919,0.211582,0.270050,0.318149,0.342717,0.365719,0.376669,0.372845,0.361190,0.336172,0.308017,0.280241,0.250980,0.217653,0.179460,0.143762,0.115843,0.094840,0.079232,0.072417,0.072597,0.095336,0.100470,0.097100,0.098494,0.089153,0.097470,0.104639,0.106260,0.112569,0.126843,0.150910,0.187414,0.225999,0.254547,0.274828,0.283802,0.289211,0.289403,0.282070,0.271487,0.251296,0.226359,0.199007,0.172308,0.150808,0.132850,0.113359,0.101014,0.103305,0.102120,0.105618,0.104765,0.089996,0.085665,0.069579,0.062063,0.060672,0.066085,0.073475,0.076799,0.082859,0.098689,0.125852,0.164483,0.202264,0.241498,0.279494,0.299009,0.317021,0.325523,0.319676,0.305018,0.278638,0.251272,0.222357,0.194403,0.170850,0.149874,0.129825,0.110507,0.092511,0.076152,0.076983,0.068948,0.079278,0.086497,0.078860,0.071518,0.073655,0.082595,0.086836,0.089721,0.094811,0.105562,0.128851,0.165494,0.208543,0.257327,0.305906,0.323074,0.336994,0.335314,0.326935,0.316321,0.294110,0.269577,0.247119,0.224144,0.203754,0.184446,0.164525,0.139595,0.124296,0.105867,0.090434,0.050411,0.044703,0.044366,0.043189,0.054730,0.068698,0.082676,0.095318,0.103032,0.112666,0.128889,0.155168,0.186091,0.219539,0.250888,0.275824,0.293148,0.308970,0.319396,0.314415,0.303442,0.281798,0.257902,0.230439,0.202388,0.176253,0.145811,0.122716,0.111054,0.100493,0.100596,0.088993,0.084935,0.072362,0.060051,0.056299,0.069850,0.089169,0.107402,0.11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+				</div>
+			</div>
+			<div style="display: inline-block; width: 100%;">
+				<label for="rightElem">Right channel samples (optional)</label>
+				<div>
+					<textarea id="rightElem" rows="5"></textarea>
+				</div>
+			</div>
+		</div>
+		<div style="margin-bottom: 0.5rem;">
+			<label for="sepElem">Separator</label>
+			<div>
+				<input id="sepElem" type="text" value=",">
+			</div>
+		</div>
+		<div style="margin-bottom: 0.5rem;">
+			<label for="sampleRate">Sample Rate (Hz)</label>
+			<div>
+				<input id="sampleRate" type="number" value="48000" min="1" step="1">
+			</div>
+		</div>
+		<div style="margin-bottom: 0.5rem;">
+			<input id="removeDC" type="checkbox" checked>
+			<label for="removeDC">Remove DC offset</label>
+			<input id="normalize" type="checkbox" checked>
+			<label for="normalize">Normalize</label>
+			<a id="download" class="disabled">
+				<button>Download WAV</button>
+			</a>
+		</div>
+		<canvas id="canvElem" width="512" height="256" style="margin-bottom: 0.5rem;"></canvas>
+		<div style="margin-bottom: 0.5rem;">Preview Settings</div>
+		<div style="display: flex; column-gap: 0.5rem; user-select: none;">
+			<div>
+				<button id="play">Toggle Audio</button>
+			</div>
+			<div>
+				<div>
+					<label for="volume">Volume:</label>
+					<span id="volumeLabel"></span>
+				</div>
+				<input id="volume" type="range" min="0" max="1" step="0.01" value="0.5">
+			</div>
+			<div>
+				<div>
+					<label for="pitch">Pitch Offset:</label>
+					<span id="pitchLabel"></span>
+				</div>
+				<input id="pitch" type="range" min="-10000" max="10000" step="1" value="0">
+			</div>
+			<div>
+				<input id="loop" type="checkbox" checked>
+				<label for="loop" checked>Loop</label>
+			</div>
+		</div>
+	</body>
+</html>
\ No newline at end of file
diff --git a/html/resampling.html b/html/resampling.html
new file mode 100644
index 0000000..6a2a5b5
--- /dev/null
+++ b/html/resampling.html
@@ -0,0 +1,297 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+		<title>Resampling</title>
+		<meta name="description" content="Demonstration of common interpolation methods.">
+		<meta name="keywords" content="Audio, Interpolation, Resample, Resampling">
+		<meta property="og:title" content="Resampling">
+		<meta property="og:type" content="website">
+		<meta property="og:url" content="https://mysterypancake.github.io/Fun/html/resampling">
+		<meta property="og:site_name" content="Resampling">
+		<meta property="og:description" content="Demonstration of common interpolation methods.">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<style>
+		* {
+			font-family: system-ui, Arial, Helvetica, sans-serif;
+		}
+
+		h1 {
+			margin: 16px 0;
+		}
+
+		canvas {
+			margin-top: 8px;
+		}
+		</style>
+		<script>
+			// https://github.com/osuushi/Smooth.js
+			(function(){var t,n,r,e,i,o,c,p,u,l,a,s,h,f,d,m,g,_,y,I,C,w,T,v,M,N,b=Object.prototype.hasOwnProperty,S=function(t,n){for(var r in n)b.call(n,r)&&(t[r]=n[r]);function e(){this.constructor=t}return e.prototype=n.prototype,t.prototype=new e,t.__super__=n.prototype,t};for(m in s={method:(r={METHOD_NEAREST:"nearest",METHOD_LINEAR:"linear",METHOD_CUBIC:"cubic",METHOD_LANCZOS:"lanczos",METHOD_SINC:"sinc",CLIP_CLAMP:"clamp",CLIP_ZERO:"zero",CLIP_PERIODIC:"periodic",CLIP_MIRROR:"mirror",CUBIC_TENSION_DEFAULT:0,CUBIC_TENSION_CATMULL_ROM:0}).METHOD_CUBIC,cubicTension:r.CUBIC_TENSION_DEFAULT,clip:r.CLIP_CLAMP,scaleTo:0,sincFilterSize:2,sincWindow:void 0},u=function(t,n){return Math.max(0,Math.min(t,n-1))},a=function(t,n){return(t%=n)<0&&(t+=n),t},l=function(t,n){var r;return(t=a(t,r=2*(n-1)))>n-1&&(t=r-t),t},t=function(){function t(t,n){if(this.array=t,this.length=this.array.length,!(this.clipHelper={clamp:this.clipHelperClamp,zero:this.clipHelperZero,periodic:this.clipHelperPeriodic,mirror:this.clipHelperMirror}[n.clip]))throw"Invalid clip: "+n.clip}return t.prototype.getClippedInput=function(t){return 0<=t&&t<this.length?this.array[t]:this.clipHelper(t)},t.prototype.clipHelperClamp=function(t){return this.array[u(t,this.length)]},t.prototype.clipHelperZero=function(t){return 0},t.prototype.clipHelperPeriodic=function(t){return this.array[a(t,this.length)]},t.prototype.clipHelperMirror=function(t){return this.array[l(t,this.length)]},t.prototype.interpolate=function(t){throw"Subclasses of AbstractInterpolator must override the interpolate() method."},t}(),i=function(n){function r(){r.__super__.constructor.apply(this,arguments)}return S(r,t),r.prototype.interpolate=function(t){return this.getClippedInput(Math.round(t))},r}(),e=function(n){function r(){r.__super__.constructor.apply(this,arguments)}return S(r,t),r.prototype.interpolate=function(t){var n;return(1-(t-=n=Math.floor(t)))*this.getClippedInput(n)+t*this.getClippedInput(n+1)},r}(),n=function(n){function r(t,n){this.tangentFactor=1-Math.max(0,Math.min(1,n.cubicTension)),r.__super__.constructor.apply(this,arguments)}return S(r,t),r.prototype.getTangent=function(t){return this.tangentFactor*(this.getClippedInput(t+1)-this.getClippedInput(t-1))/2},r.prototype.interpolate=function(t){var n,r,e,i,o;return n=Math.floor(t),r=[this.getTangent(n),this.getTangent(n+1)],(2*(o=(t-=n)*(i=t*t))-3*i+1)*(e=[this.getClippedInput(n),this.getClippedInput(n+1)])[0]+(o-2*i+t)*r[0]+(-2*o+3*i)*e[1]+(o-i)*r[1]},r}(),w=Math.sin,o=Math.PI,T=function(t){return 0===t?1:w(o*t)/(o*t)},g=function(t){return function(n){return T(n/t)}},y=function(t){return function(n){return T(n)*t(n)}},c=function(n){function r(t,n){if(r.__super__.constructor.apply(this,arguments),this.a=n.sincFilterSize,!n.sincWindow)throw"No sincWindow provided";this.kernel=y(n.sincWindow)}return S(r,t),r.prototype.interpolate=function(t){var n,r,e,i,o;for(e=0,r=i=(n=Math.floor(t))-this.a+1,o=n+this.a;i<=o?r<=o:r>=o;i<=o?r++:r--)e+=this.kernel(t-r)*this.getClippedInput(r);return e},r}(),h=function(t,n){var r,e,i,o;for(o=[],e=0,i=t.length;e<i;e++)r=t[e],o.push(r[n]);return o},_=function(t,n,r){var e,i;return"0,1"===r.join?t:(e=n/(r[1]-r[0]),i=r[0],function(n){return t(e*(n-i))})},f=function(t){return Object.prototype.toString.call(t).slice("[object ".length,-1)},M=function(t){if(isNaN(t))throw"NaN in Smooth() input";if("Number"!==f(t))throw"Non-number in Smooth() input";if(!isFinite(t))throw"Infinity in Smooth() input"},N=function(t,n){var r,e,i;if("Array"!==f(t))throw"Non-vector in Smooth() input";if(t.length!==n)throw"Inconsistent dimension in Smooth() input";for(e=0,i=t.length;e<i;e++)r=t[e],M(r)},d=function(t){return"Number"===f(t)&&isFinite(t)&&!isNaN(t)},I=function(t){var n;switch(n="scaleTo param must be number or array of two numbers",f(t)){case"Number":if(!d(t))throw n;t=[0,t];break;case"Array":if(2!==t.length)throw n;if(!d(t[0])||!d(t[1]))throw n;break;default:throw n}return t},C=function(t){var n,r,e;for(r in n={},t)b.call(t,r)&&(e=t[r],n[r]=e);return n},p=function(t,r){var o,u,l,a,d,m,y,w,T,v,S;for(y in null==r&&(r={}),T={},r=C(r),T.config=C(r),null==r.scaleTo&&(r.scaleTo=r.period),null==r.sincFilterSize&&(r.sincFilterSize=r.lanczosFilterSize),s)b.call(s,y)&&(S=s[y],null==r[y]&&(r[y]=S));if(!(d={nearest:i,linear:e,cubic:n,lanczos:c,sinc:c}[r.method]))throw"Invalid method: "+r.method;if("lanczos"===r.method&&(r.sincWindow=g(r.sincFilterSize)),t.length<2)throw"Array must have at least two elements";for(y in T.count=t.length,v=function(){var n,e,i,o;switch(f(t[0])){case"Number":if(T.dimension="scalar",p.deepValidation)for(n=0,i=t.length;n<i;n++)w=t[n],M(w);return a=new d(t,r),function(t){return a.interpolate(t)};case"Array":if(T.dimension=u=t[0].length,!u)throw"Vectors must be non-empty";if(p.deepValidation)for(e=0,o=t.length;e<o;e++)S=t[e],N(S,u);return m=function(){var n;for(n=[],l=0;0<=u?l<u:l>u;0<=u?l++:l--)n.push(new d(h(t,l),r));return n}(),function(t){var n,r,e,i;for(i=[],r=0,e=m.length;r<e;r++)n=m[r],i.push(n.interpolate(t));return i};default:throw"Invalid element type: "+f(t[0])}}(),o="periodic"===r.clip?t.length:t.length-1,r.scaleTo||(r.scaleTo=o),T.domain=I(r.scaleTo),v=_(v,o,T.domain),T.domain.sort(),T)b.call(T,y)&&(S=T[y],v[y]=S);return v},r)b.call(r,m)&&(v=r[m],p[m]=v);p.deepValidation=!0,("undefined"!=typeof exports&&null!==exports?exports:window).Smooth=p}).call(this);
+		</script>
+		<script>
+		let canvasElem;
+		let canvasContext;
+		let audioContext;
+		let detail;
+		let numSamples;
+		let bufferSource;
+		let smoothed;
+		let interpolation;
+		let samples;
+		let frequency;
+		let volume;
+		let volumeNode;
+		let buffer;
+
+		// 4-point, 3rd-order Hermite interpolation
+		// Based on https://www.musicdsp.org/en/latest/Other/93-hermite-interpollation.html
+		function hermite(arr, index) {
+			const floor = Math.floor(index);
+			const x = index % 1;
+			let y1 = arr[floor];
+			if (y1 === undefined) {
+				y1 = 0;
+			}
+			let y0 = arr[floor - 1];
+			if (y0 === undefined) {
+				y0 = y1;
+			}
+			let y2 = arr[floor + 1];
+			if (y2 === undefined) {
+				y2 = y1;
+			}
+			let y3 = arr[floor + 2];
+			if (y3 === undefined) {
+				y3 = y2;
+			}
+			const c1 = 0.5 * (y2 - y0);
+			const c3 = 1.5 * (y1 - y2) + 0.5 * (y3 - y0);
+			const c2 = y0 - y1 + c1 - c3;
+			return ((c3 * x + c2) * x + c1) * x + y1;
+		}
+
+		// Linear interpolation
+		// Based on https://github.com/MysteryPancake/After-Effects-Fun/blob/master/expressions/linear.js
+		function linear(arr, index) {
+			let prev = arr[Math.floor(index)];
+			let next = arr[Math.ceil(index)];
+			if (prev === undefined) {
+				prev = 0;
+			}
+			if (next === undefined) {
+				next = 0;
+			}
+			const weight = index % 1;
+			return prev * (1 - weight) + next * weight;
+		}
+
+		function setDetail(elem) {
+			detail = parseFloat(elem.value);
+			recalculate();
+		}
+
+		function setSamples(elem) {
+			numSamples = parseInt(elem.value);
+			repopulateArray();
+			recalculate();
+		}
+
+		function setFrequency(elem) {
+			frequency = parseFloat(elem.value);
+			recalculateBuffer();
+		}
+
+		function setVolume(elem) {
+			if (!volumeNode) return;
+			volume = parseFloat(elem.value);
+			volumeNode.gain.value = volume;
+		}
+
+		function setInterpolation(elem) {
+			interpolation = elem.value;
+			recalculate();
+		}
+
+		function repopulateArray() {
+			samples = new Float32Array(numSamples);
+			// Keep first and last samples at 0 to prevent pops and remove DC offset
+			for (let i = 1; i < numSamples - 1; i++) {
+				samples[i] = Math.random() - 0.5;
+			}
+		}
+
+		function recalculateFilter() {
+			switch (interpolation) {
+				case "sincrectangular":
+					smoothed = Smooth(samples, {
+						clip: "periodic",
+						method: "sinc",
+						sincFilterSize: 64,
+						sincWindow: function(x) {
+							return 1;
+						}
+					});
+					break;
+				case "sincgaussian":
+					smoothed = Smooth(samples, {
+						clip: "periodic",
+						method: "sinc",
+						sincFilterSize: 64,
+						sincWindow: function(x) {
+							return Math.exp(-x * x);
+						}
+					});
+					break;
+				case "nearest":
+				case "linear":
+				case "cubic":
+				case "lanczos":
+					smoothed = Smooth(samples, {
+						clip: "periodic",
+						method: interpolation
+					});
+					break;
+			}
+		}
+
+		function redrawCanvas() {
+			canvasContext.fillStyle = "black";
+			canvasContext.fillRect(0, 0, canvasElem.width, canvasElem.height);
+			if (buffer) {
+				const interpolated = buffer.getChannelData(0);
+				canvasContext.globalCompositeOperation = "screen";
+				// Draw interpolated samples
+				canvasContext.fillStyle = "green";
+				for (let i = 0; i < interpolated.length; i++) {
+					canvasContext.beginPath();
+					canvasContext.arc(i / (interpolated.length - 1) * canvasElem.width, (interpolated[i] + 1) * canvasElem.height * 0.5, 3, 0, 2 * Math.PI);
+					canvasContext.fill();
+				}
+				// Draw actual samples
+				canvasContext.shadowBlur = 8;
+				canvasContext.shadowColor = "white";
+				canvasContext.fillStyle = "white";
+				for (let j = 0; j < samples.length; j++) {
+					canvasContext.beginPath();
+					canvasContext.arc(j / (samples.length - 1) * canvasElem.width, (samples[j] + 1) * canvasElem.height * 0.5, 6, 0, 2 * Math.PI);
+					canvasContext.fill();
+				}
+				canvasContext.globalCompositeOperation = "source-over";
+				canvasContext.shadowBlur = 0;
+			} else {
+				canvasContext.shadowBlur = 32;
+				canvasContext.shadowColor = "white";
+				canvasContext.fillStyle = "white";
+				canvasContext.font = (canvasElem.height * 0.25) + "px Arial";
+				canvasContext.textAlign = "center";
+				canvasContext.textBaseline = "middle";
+				canvasContext.fillText("Click to enable audio", canvasElem.width * 0.5, canvasElem.height * 0.5);
+				canvasContext.shadowBlur = 0;
+			}
+		}
+
+		function recalculate() {
+			recalculateFilter();
+			recalculateBuffer();
+			redrawCanvas();
+		}
+
+		function recalculateBuffer() {
+			if (!audioContext) return;
+			if (bufferSource) {
+				bufferSource.disconnect();
+				bufferSource.stop();
+			}
+			bufferSource = audioContext.createBufferSource();
+			buffer = audioContext.createBuffer(1, samples.length * detail, audioContext.sampleRate);
+			const interpolated = buffer.getChannelData(0);
+			for (let i = 0; i < interpolated.length; i++) {
+				const newIndex = i / (interpolated.length - 1) * (samples.length - 1);
+				switch (interpolation) {
+					case "rounddown":
+						interpolated[i] = samples[Math.floor(newIndex)];
+						break;
+					case "roundup":
+						interpolated[i] = samples[Math.ceil(newIndex)];
+						break;
+					case "customnearest":
+						interpolated[i] = samples[Math.round(newIndex)];
+						break;
+					case "customlinear":
+						interpolated[i] = linear(samples, newIndex);
+						break;
+					case "customhermite":
+						interpolated[i] = hermite(samples, newIndex);
+						break;
+					default:
+						interpolated[i] = smoothed(newIndex);
+				}
+			}
+			bufferSource.playbackRate.value = interpolated.length / audioContext.sampleRate * frequency;
+			bufferSource.buffer = buffer;
+			bufferSource.loop = true;
+			bufferSource.connect(volumeNode);
+			bufferSource.start();
+		}
+
+		function setupAudio() {
+			if (audioContext) return;
+			audioContext = new (window.AudioContext || window.webkitAudioContext)();
+			volumeNode = audioContext.createGain();
+			volumeNode.gain.value = volume;
+			volumeNode.connect(audioContext.destination);
+			recalculate();
+		}
+
+		function setup() {
+			canvasElem = document.getElementById("canvasElem");
+			canvasContext = canvasElem.getContext("2d");
+			detail = parseFloat(document.getElementById("detailSlider").value);
+			numSamples = parseInt(document.getElementById("sampleSlider").value);
+			frequency = parseInt(document.getElementById("freqSlider").value);
+			volume = parseFloat(document.getElementById("volumeSlider").value);
+			interpolation = document.getElementById("method").value;
+			canvasElem.addEventListener("click", setupAudio);
+			Smooth.deepValidation = false;
+			repopulateArray();
+			redrawCanvas();
+		}
+		</script>
+	</head>
+	<body onload="setup();">
+		<h1>Resampling</h1>
+		<div>
+			<label for="method">Method</label>
+			<select id="method" onchange="setInterpolation(this);">
+				<optgroup label="Zero-Order Hold">
+					<option value="rounddown">Round Down</option>
+					<option value="roundup">Round Up</option>
+					<option value="nearest">Nearest</option>
+					<option value="customnearest">Nearest (Remake)</option>
+				</optgroup>
+				<optgroup label="First-Order Hold">
+					<option value="linear">Linear</option>
+					<option value="customlinear">Linear (Remake)</option>
+				</optgroup>
+				<optgroup label="Third-Order Hold">
+					<option value="cubic">Cubic / Hermite</option>
+					<option value="customhermite">Cubic / Hermite (Remake)</option>
+				</optgroup>
+				<optgroup label="Sinc-Based">
+					<option value="lanczos">Lanczos</option>
+					<option value="sincgaussian" selected>Sinc (Gaussian)</option>
+					<option value="sincrectangular">Sinc (Rectangular)</option>
+				</optgroup>
+			</select>
+			<label for="sampleSlider">Samples</label>
+			<input type="range" id="sampleSlider" oninput="setSamples(this);" min="2" max="100" value="20" step="1">
+			<label for="detailSlider">Detail</label>
+			<input type="range" id="detailSlider" oninput="setDetail(this);" min="1" max="50" value="20" step="0.01">
+			<label for="freqSlider">Frequency</label>
+			<input type="range" id="freqSlider" oninput="setFrequency(this);" min="20" max="880" value="220" step="0.01">
+			<label for="volumeSlider">Volume</label>
+			<input type="range" id="volumeSlider" oninput="setVolume(this);" min="0" max="1" value="0.25" step="0.01">
+		</div>
+		<canvas id="canvasElem" width="1024" height="256"></canvas>
+	</body>
+</html>
