Web Audio / Web MIDI ã«ã¾ã¤ã‚る時間管ç†ã®è©±ï¼ˆï¼‘） - Webã«ãŠã‘ã‚‹3種類ã®æ™‚刻 - Qiita
ã¯ã˜ã‚㫠基本ã®ã€Œãã€ã§ã‚ã‚ŠãªãŒã‚‰ã€ãªã‹ãªã‹ã©ã†ã—ã¦ç°¡å˜ã«ã¯ã„ã‹ãªã„時間管ç†ã«ã¤ã„ã¦å°‘ã—掘り下ã’ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ãã—ã¦ã‚«ãƒ¬ãƒ³ãƒ€ãƒ¼ã®ã»ã†ã«ç©ºãã‚‚ã‚ã‚‹ã®ã§ã€æ¬²å¼µã‚‰ãšã«ä½•å›žã‹ã«ã‚ã‘ã¦æ›¸ã„ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚今回ã¯æ™‚刻ã«ã¤ã„ã¦ã€‚ Webã‹ã‚‰è¦‹ãˆã‚‹æ™‚刻 Date.now() デートãªã†(^o^)v ã„ã‚ゆるUNIX時間ã€1970å¹´ã‹ã‚‰ã®çµŒéŽæ™‚間をミリ秒å˜ä½ã§è¡¨ç¾ã—ãŸæ•°å€¤ã§ã™ã€‚ç¾åœ¨æ™‚刻ã«ç´ä»˜ã„ã¦ã„ã‚‹ãŸã‚ã€æ™‚計をãšã‚‰ã™ã¨æˆ»ã‚‹ã“ã¨ã‚‚ã‚る（ã¯ãšã®ï¼‰ãµã‚ãµã‚タイムã§ã™ã€‚ performance.now() DOMHighResTimeStampã‚’è¿”ã—ã¦ãã‚Œã¾ã™ã€‚ã“ã‚Œã¯ç¾åœ¨ã®Windowã§å®Ÿè¡Œã‚³ãƒ³ãƒ†ã‚ストを生æˆã—ãŸçž¬é–“ã‹ã‚‰ã®çµŒéŽæ™‚間をミリ秒å˜ä½ã§è¡¨ç¾ã—ãŸæ•°å€¤ã§ã™ã€‚ã–ã£ãり言ãˆã°ãƒšãƒ¼ã‚¸ã‚’é–‹ã„ã¦ã‹ã‚‰ã®çµŒéŽæ™‚間。リãƒãƒ¼ãƒ‰ã™ã‚Œã°0ã‹ã‚‰æ•°ãˆãªãŠã—ã¦ãã‚Œã¾ã™ã—ã€ç¾åœ¨æ™‚刻ã¨ã¯ç‹¬ç«‹ã—ã¦ã„ã‚‹ãŸã‚ã€æ™‚計をãšã‚‰ã—ã¦ã‚‚影響をå—ã‘ãš
GitHub - pendragon-andyh/WebAudio-PulseOscillator: Create a Pulse Oscillator using the Web Audio API
矩形波ã®ãƒ‡ãƒ¥ãƒ¼ãƒ†ã‚£æ¯”を変化ã•ã›ã‚‹
ファミコンã®éŸ³æºã¯çŸ©å½¢æ³¢x2+三角波+ノイズã¨ã„ã†æ§‹æˆãªã‚“ã ã‘ã©ã€ã•ã‚‰ã«çŸ©å½¢æ³¢ã«ã¯ãƒ‡ãƒ¥ãƒ¼ãƒ†ã‚£æ¯”を変更ã•ã›ã‚‹ã¨ã„ã†æ©Ÿèƒ½ãŒã‚る。 ã“れをWebAudioã§å®Ÿç¾ã™ã‚‹ã«ã¯ã©ã†ã—ãŸã‚‰ã„ã„ã®ã‹ã¨è€ƒãˆã¦ã„ãŸã€‚ 仕組ã¿WebAudioã«ã¯ã‚ªã‚·ãƒ¬ãƒ¼ã‚¿ã§å±±ã¨è°·ãŒç‰ã—ã„矩形波を生æˆã™ã‚‹ã“ã¨ãŒã§ãã‚‹ãŒã€ãƒ‡ãƒ¥ãƒ¼ãƒ†ã‚£æ¯”を変更ã™ã‚‹ã‚ˆã†ãªæ©Ÿèƒ½ã¯ãªã„。 オシレータを使ã‚ãšã«è‡ªåˆ†ã§è¨ˆç®—ã—ã¦ä½œã£ãŸãƒãƒƒãƒ•ã‚¡ã«æ³¢å½¢ã‚’構築ã—ã¦ã‚„ã‚Œã°ãã†ã„ã†æ³¢å½¢ã‚‚作れるã‘ã©ã€é¢å€’ãªã®ã§ã§ãã‚Œã°ã—ãŸããªã„。 ã§ã©ã†ã—ãŸã‚‚ã®ã‹ã¨æ€ã£ã¦ã„ãŸã‚‰ã€å®Ÿç¾ã—ã¦ã„るサイトを見ã¤ã‘ãŸï¼š Oscilloscope and Pulse-Width control ã©ã†ã‚„ã£ã¦ã„ã‚‹ã®ã‹ã‚½ãƒ¼ã‚¹ã‚’見ã¦ã¿ã‚‹ã¨ã€ãƒŽã‚³ã‚®ãƒªæ³¢ã‚’組ã¿åˆã‚ã›ã¦å®Ÿç¾ã—ã¦ã„ãŸã€‚ 通常ã®ãƒŽã‚³ã‚®ãƒªæ³¢ã«åŠ ãˆã¦ã€ã‚²ã‚¤ãƒ³ã‚’å転ã•ã›ã¦ãƒ‡ãƒ¥ãƒ¼ãƒ†ã‚£æ¯”ã«åˆã‚ã›ã¦ãƒ‡ã‚£ãƒ¬ã‚¤ã•ã›ãŸã‚‚ã®ã‚’組ã¿åˆã‚ã›ã‚‹ã¨ã€æ³¢ãŒæ‰“ã¡æ¶ˆã—ã‚ã£ã¦çŸ©å½¢æ³¢ãŒä½œã‚Šå‡º
AudioBufferã«è¿½åŠ ã•ã‚Œã‚‹copyFromChannelã«ã¤ã„ã¦èª¿ã¹ãŸã®ã§ã™ãŒã€ã“ã®ç†è§£ã§ã‚ã£ã¦ã„ã¾ã™ã‹ï¼Ÿ - Qiita
interface AudioBuffer { readonly attribute float sampleRate; readonly attribute long length; readonly attribute double duration; readonly attribute long numberOfChannels; // ã„ã¾ã¾ã§ã“ã‚Œã ã‘ã ã£ãŸã®ãŒ Float32Array getChannelData(unsigned long channel); // ã“ã®2ã¤ã®ãƒ¡ã‚½ãƒƒãƒ‰ãŒè¿½åŠ ã•ã‚Œã‚‹ void copyFromChannel(Float32Array destination, long channelNumber, optional unsigned long startInChannel = 0); void copyToChannel(Float32Arra
2 ã¤ã®æ™‚計ã®ãŠè©± - Web Audio ã®æ£ç¢ºãªã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒªãƒ³ã‚°ã«ã¤ã„ã¦
A tale of two clocks Stay organized with collections Save and categorize content based on your preferences. Introduction One of the biggest challenges in building great audio and music software using the web platform is managing time. Not as in “time to write codeâ€, but as in clock time - one of the least well-understood topics about Web Audio is how to properly work with the audio clock. The Web
Web Audio API 1.1
Web Audio API 1.1 Editor’s Draft, 4 October 2024 More details about this document This version: https://webaudio.github.io/web-audio-api/ Latest published version: https://www.w3.org/TR/webaudio-11/ Previous Versions: https://www.w3.org/TR/2021/REC-webaudio-20210617/ https://www.w3.org/TR/2021/CR-webaudio-20210114/ https://www.w3.org/TR/2020/CR-webaudio-20200611/ https://www.w3.org/TR/2018/CR-weba
How to Generate Noise with the Web Audio API
One of the main shortcomings of the Web Audio API is that there’s no native support for generating noise. This post will teach you how to overcome that limitation. If you want to skip to the good part, check out the demo. Also, I’ve packaged all the noise generators into a small library called noise.js (available on GitHub). White Noise The most common type of noise is white noise. White noise is
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楽×å¦ï¼ˆãƒ©ã‚¯ã‚¬ã‚¯ï¼‰2014～ç§ã®ã€Œã‚„ã‚‹ï¼ã€ã‚’興ã™ãŸã‚ã«ï½ž を開催ã—ã¾ã™ï¼æµœæ¾å¸‚ 浜æ¾ã§ã€Œæ¥½Ã—å¦ 2014～ç§ã®ã€Œã‚„ã‚‹ï¼ã€ã‚’興ã™ãŸã‚ã«ï½žã€ã¨ã„ã†ã‚¤ãƒ™ãƒ³ãƒˆãŒé–‹å‚¬ã•ã‚Œã¦ã€ãã®æœ€æœŸã‚’飾る SjQ ライブパフォーマンスã§ã‚¦ã‚§ãƒ–オーディオãŒä½¿ã‚ã‚Œã¦ã„ãŸã®ã§æ§˜åを見ã«è¡Œã£ãŸã€‚ ã•ã‚‰ã«ä»Šå›žã¯ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼mohayonaoæ°ã‚’ゲストã«è¿Žãˆã€cellãŒã‚ªãƒ³ãƒ©ã‚¤ãƒ³ä¸Šã«ç”Ÿæˆã—ãŸã‚µã‚¦ãƒ³ãƒ‰ã‚’ãŠå®¢ã•ã‚“ã®ã‚¹ãƒžãƒ›ã‹ã‚‰ã‚¢ã‚¦ãƒˆãƒ—ットã™ã‚‹ã‚·ã‚¹ãƒ†ãƒ を開発。SjQã®æ¼”å¥ä¸ã«cellã®é›»å音ãŒã‚¹ãƒžãƒ›ã«é™ã‚Šæ³¨ãŽã€è¦‹äº‹ãªã‚µã‚¦ãƒ³ãƒ‰ã‚¹ã‚±ãƒ¼ãƒ—ã‚’æã出ã—ã¾ã—ãŸ(スタッフa)— SjQ++ (@sjqpp) 2014, 11月 30 SjQã¨ã„ã†ã®ã¯ã“ã†ã„ã†æ„Ÿã˜ã€‚ ã€SjQ++】生演å¥ã¨ã‚³ãƒ³ãƒ”ュータを組ã¿åˆã‚ã›ã€æ–°ã—ã„å³èˆˆéŸ³æ¥½ã‚’生ã¿å‡ºã™ãƒãƒ³ãƒ‰ - PICK UP | KAKEHASHI å‰å›ž ã€Cell ã¨ã„ã†ã‚¤ãƒ³ã‚¹ã‚¿ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’手ä¼ã£ãŸæµã‚Œã§ã€ã
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Chrome: onaudioprocess stops getting called after a while
I'm using ScriptProcessorNode's onaudioprocess callback to process the microphone input. By connecting MediaStreamSourceNode to the ScriptProcessorNode, I can get the raw audio data within the onaudioprocess callback function. However, after about 30 seconds (this varies ranging from 10 to 35 sec,) the browser stops calling onaudioprocess. In the following code, the console.log output ('>>') alway
AudioParam Viewer - 音ã®é³´ã‚‹ãƒ–ãƒã‚°
Web Audio API ã® AudioParam ã®å€¤ã‚’å¯è¦–化ã§ãã‚‹ã‚„ã¤ã‚’作ã£ãŸã€‚ AudioParam Viewer コードを書ã„ã¦å®Ÿè¡Œ(eval)ã™ã‚‹ã¨30秒分ã®å€¤ã®é·ç§»ã‚’記録ã—ã¦ã‚°ãƒ©ãƒ•è¡¨ç¤ºã—ã¾ã™ã€‚param ã¨ã„ã†ã®ãŒæ“作ã™ã‚‹ AudioParam ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã§ã€Ctrl+O ã‹ Ctrl+Space ã§æ“作関数を補完ã§ãã¾ã™ã€‚ 仕組㿠Web Audio API ã¯ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã§ã‚ªãƒ¼ãƒ‡ã‚£ã‚ªå‡¦ç†ã‚’ã™ã‚‹ãŸã‚ã®APIã ã¨æ€ã‚ã‚ŒãŒã¡ã ã‘ã©ã€OfflineAudioContext ã¨ã„ã†ã®ã‚’使ãˆã°é™çš„ãªã‚ªãƒ¼ãƒ‡ã‚£ã‚ªå‡¦ç†ã‚‚ã§ãã¾ã™ã€‚以下ã¯ç°¡å˜ãªä½¿ã„方。レンダリング用ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ãŒã‚ã‚‹ã ã‘ã§åŸºæœ¬çš„ã«ã¯ AudioContext ã¨åŒã˜ã‚ˆã†ã«ä½¿ãˆã¾ã™ã€‚ã“れを使ã†ã¨30秒ã®å‡¦ç†ã‚’一瞬ã§è¡Œã†ã“ã¨ãŒã§ãã‚‹ã®ã§ã€ãれを使ã£ã¦å¸¸ã« 1 を出力ã™ã‚‹ AudioBufferSource ã¨ãƒ‘ラメータ
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Need a more algorithmic definition of AudioWorkletNode lifetime · Issue #1079 · WebAudio/web-audio-api
React and Web Audio
http://chromium.googlecode.com/svn/trunk/samples/audio/wave-tables/
Map AudioContext times to DOM timestamps · Issue #340 · WebAudio/web-audio-api
Web Audio Timing Tutorial - Ear to the Bits
Web Audio – Medium
Phase Offsets With Web Audio WaveTables – Web Audio – Medium
Add an way to request mathematically correct oscillators · Issue #244 · WebAudio/web-audio-api
Audio Workers · Issue #113 · WebAudio/web-audio-api
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