Dub Techno Chords

Developer
André Michelle
Size
3,909 Kb
Views
22,264
  1. Dub Techno Chords Previews
  2. Dub Techno Chords HTML Codes
  3. Dub Techno Chords CSS Codes
  4. Dub Techno Chords JS Codes

How do I make an dub techno chords?

To be continued.... What is a dub techno chords? How do you make a dub techno chords? This script and codes were developed by André Michelle on 18 October 2022, Tuesday.

Dub Techno Chords Previews
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Dub Techno Chords - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Dub Techno Chords</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div>	<h3>Dub Techno Chords</h3>	<h5>Web-Audio-Api / No Samples</h5>	<p>Click to start...</p>	<h4>Chrome only / Safari antiquated</h4>
</div> <script src="js/index.js"></script>
</body>
</html>

Dub Techno Chords - Script Codes CSS Codes

html, body {	font-family: Open Sans;	background: #111;	text-align:center;
}
div {	border-radius: 8px;	background: black;	padding: 16px;	top: 50%;	left: 50%;	position: absolute;	transform: translateX(-50%) translateY(-50%);
}
h3 {	letter-spacing: 0.6px;	margin: 0;	padding: 0;	color: yellow;
}
h4 {	letter-spacing: 0.4px;	margin: 0;	padding: 0;	color: red;	font-size: 11px;
}
h5 {	margin: 0;	padding: 0;	color: orange;
}
p {	color: grey;
}

Dub Techno Chords - Script Codes JS Codes

console.clear();
var start = function() {	var AudioContext = window.AudioContext || window.webkitAudioContext;	var context = new AudioContext();	var bpm = 115.0;	var barsToSeconds = function(bars) {	return bars * 240.0 / bpm;	};	var secondsToBars = function(seconds) {	return seconds * bpm / 240.0;	};	var noteToFrequency = function(midiNote) {	return 440.0 * Math.pow(2.0, (midiNote + 3.0) / 12.0 - 6.0);	};	var random = (function() {	var seed = 0xABCDEF;	return function() {	return (seed = (seed * 16807) % 2147483647) / 2147483647.0;	};	})();	var delay = function(delayTime, delayFeedback, wet, dry) {	var input = context.createGain();	var output = context.createGain();	var dryGain = context.createGain();	var wetGain = context.createGain();	var delay = context.createDelay();	var feedback = context.createGain();	delay.delayTime.value = delayTime;	feedback.gain.value = delayFeedback;	dryGain.gain.value = dry;	wetGain.gain.value = wet;	input.connect(dryGain);	input.connect(wetGain);	dryGain.connect(output);	wetGain.connect(delay);	delay.connect(feedback);	feedback.connect(delay);	delay.connect(output);	return {	input: input,	output: output	};	};	var convolver = function(gain) {	var convolver = context.createConvolver();	var convolverGain = context.createGain();	convolverGain.gain.value = gain;	convolver.connect(convolverGain);	return {	input: convolver,	output: convolverGain,	loadImpulse: function(url, success) {	var request = new XMLHttpRequest();	request.open("GET", url, true);	request.responseType = "arraybuffer";	request.onload = function() {	context.decodeAudioData(request.response, function(buffer) {	convolver.buffer = buffer;	if (success) success();	}, function(e) {	console.error(e);	});	};	request.onerror = function(e) {	console.error(e);	};	request.send();	}	};	};	var buffer = context.createBuffer(1, context.sampleRate, context.sampleRate);	var data = buffer.getChannelData(0);	for (var i = 0; i < data.length; ++i) {	data[i] = random() * 2.0 - 1.0;	}	var room = convolver(0.5);	room.loadImpulse( "https://s3-us-west-2.amazonaws.com/s.cdpn.io/131247/factory.hall.ogg" );	room.output.connect(context.destination);	var delayA = delay(barsToSeconds(7.0 / 16.0), 0.3, 0.4, 1.0);	var delayB = delay(barsToSeconds(3.0 / 16.0), 0.4, 0.2, 1.0);	var synthGain = context.createGain();	synthGain.gain.value = 0.07;	var synthPanning = context.createStereoPanner();	synthGain.connect(synthPanning);	synthPanning.connect(delayA.input);	delayA.output.connect(delayB.input);	delayB.output.connect(context.destination);	delayB.output.connect(room.input);	var kick = function(time) {	var osc = context.createOscillator();	var env = context.createGain();	osc.connect(env);	env.connect(context.destination);	osc.frequency.value = 120;	osc.frequency.setValueAtTime(120, time);	osc.frequency.exponentialRampToValueAtTime(50, time + 0.1);	env.gain.value = 0.5;	env.gain.setValueAtTime(0.5, time);	env.gain.linearRampToValueAtTime(0.0, time + 0.2);	osc.start(time);	osc.stop(time + 0.2);	};	function closedHat(position, volume) {	var hat = context.createBufferSource();	hat.buffer = buffer;	hat.start(position);	hat.stop(position + 0.02);	var flt = context.createBiquadFilter();	flt.type = "highpass";	flt.frequency.value = 9000;	hat.connect(flt);	var gain = context.createGain();	gain.gain.value = volume;	flt.connect(gain);	gain.connect(context.destination);	}	var playSynth = function(position, duration, freqBegin, freqEnd, stereo, notes) {	var q = 0.5;	var complete = position + duration;	var merger = context.createChannelMerger();	var fltA, fltB, fltC;	fltA = context.createBiquadFilter();	fltA.type = "lowpass";	fltA.Q.value = q;	fltA.frequency.setValueAtTime(freqBegin, position);	fltA.frequency.exponentialRampToValueAtTime(freqEnd, complete);	fltB = context.createBiquadFilter();	fltB.type = "lowpass";	fltB.Q.value = q;	fltB.frequency.setValueAtTime(freqBegin, position);	fltB.frequency.exponentialRampToValueAtTime(freqEnd, complete);	fltC = context.createBiquadFilter();	fltC.type = "lowpass";	fltC.Q.value = q;	fltC.frequency.setValueAtTime(freqBegin, position);	fltC.frequency.exponentialRampToValueAtTime(freqEnd, complete);	var n = notes.length;	for (var i = 0; i < n; ++i) {	var frequency = noteToFrequency(notes[i]);	var oscA = context.createOscillator();	oscA.type = 'square';	oscA.frequency.value = frequency + stereo;	oscA.start(position);	oscA.stop(complete);	oscA.connect(merger, 0, 0);	var oscB = context.createOscillator();	oscB.type = 'square';	oscB.frequency.value = frequency - stereo;	oscB.start(position);	oscB.stop(complete);	oscB.connect(merger, 0, 1);	}	merger.connect(fltA);	fltA.connect(fltB);	fltB.connect(fltC);	fltC.connect(synthGain);	}	var bars = 0.0;	var nextSchedule = context.currentTime;	var scheduleTime = 0.050;	var aheadTime = 0.100;	var intervalMs = 10.0;	var semiquaver = 1.0 / 16.0;	var chordA = [36, 39, 43];	var chordB = [38, 41, 46];	var chordC = [39, 42, 46];	var p = document.querySelector("p");	var schedule = function() {	var now = context.currentTime;	if (now + aheadTime > nextSchedule) {	var target = bars + secondsToBars(scheduleTime);	var index = Math.floor(bars / semiquaver);	var position = index * semiquaver;	while (position < target) {	if (position >= bars) {	{ // time display	p.textContent = ("000" + (Math.floor(bars) + 1)).substr(-3) + "." +	(Math.floor(bars * 4) % 4 + 1) + ":" +	(Math.floor(bars * 16) % 4 + 1);	}	var startTime = nextSchedule + barsToSeconds(position - bars);	var semiquaverTime = barsToSeconds(semiquaver);	var mod4 = index % 4;	var mod32 = index % 32;	var mod128 = index % 128;	if (0 == mod4) {	kick(startTime);	}	if (0 < mod4) {	closedHat(startTime, Math.pow(Math.sin(mod4 / 4.0 * Math.PI), 10.0) * 0.3);	}	if (4 == mod32) {	playSynth(startTime, semiquaverTime * 2.0,	3000 - Math.cos(position / 24 * Math.PI * 2.0) * 1000.0, 240, 0.1, chordA);	}	if (30 == mod32) {	playSynth(startTime, semiquaverTime * 2.0,	3000 - Math.cos(position / 28 * Math.PI * 2.0) * 2000.0, 240, 0.2, chordC);	}	if (123 == mod128) {	playSynth(startTime, semiquaverTime * 4.0, 240, 660, -0.07, chordC);	}	synthPanning.pan.linearRampToValueAtTime(Math.sin((index % 7) / 7.0 * Math.PI * 2.0) * 0.5, startTime);	}	position = ++index * semiquaver;	}	bars = target;	nextSchedule = nextSchedule + scheduleTime;	}	};	setInterval(schedule, intervalMs);
};
window.addEventListener("click", function() {	console.log("start");	start();	window.removeEventListener("click", arguments.callee);
});
Dub Techno Chords - Script Codes
Dub Techno Chords - Script Codes
Home Page Home
Developer André Michelle
Username andremichelle
Uploaded October 18, 2022
Rating 3
Size 3,909 Kb
Views 22,264
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