file.onchange = function (event) { var file = event.target.files[0]; // 开始识别 var reader = new FileReader(); reader.onload = function (event) { var arrBuffer = event.target.result; // arrBuffer就是包含音频数据的ArrayBuffer对象 }); reader.readAsArrayBuffer(file); }; 1. 2. 3. ...
JavaScript，你仍然可以执行该操作并且还可以执行进一步操作。在以下示例中，我们在 HTML 中使用简单的 audio 标记语法。<input type="text" id="audiofile" size="80" value="demo.mp3" /> 音频播放器的所有其他功能可通过JavaScript进行控制，如以下脚本所示。var currentFile = "";function playAud...
var audioCtx = new AudioContext(); audioCtx.decodeAudioData(arrBuffer, function(audioBuffer) { // audioBuffer就是AudioBuffer }); 3. 复制AudioBuffer前3秒数据 AudioBuffer对象是一个音频专用Buffer对象,包含很多音频信息,包括: 音频时长duration 声道数量numberOfChannels 采样率sampleRate 等。 包括一些音频...
var context; window.addEventListener('load', init, false); function init() { try { // Fix up for prefixing window.AudioContext = window.AudioContext||window.webkitAudioContext; context = new AudioContext(); } catch(e) { alert('Web Audio API is not supported in this browser'); } } Lo...
参数url就是要播放的地址 function playAudio(url){ const audio = new Audio(url);...audio.src = url; audio.play(); return audio; } 然后,将函数保存到一个变量里面,就可以调用play()和pause()控制播放和停止了 var...,还是直接百度吧,别自己研究了(大佬除外~~~) 如无特殊说明《JavaScript控制audio...
问p5js AudioIn函数在实例模式下不起作用EN// sketch.quinnListenMic; doesn't make sense. 1) You...
A button is defined with an id="play", and an onclick event that triggers the "playAudio()"JavaScript function.In the JavaScript portion, the audio object is returned using document.getElementById. The play and pause methods are used to provide playback control. The button object ...
scope null object Callbacks will be called in that object's scope ready_callback null function Called after sound file is fully uploaded (or ready to play for HTML5 audio) ended_callback null function Called each time then sound file will reach it's endSound...
When a playback control button is clicked, the JavaScript application component uses thePostMessage()method to notify the Native Client (NaCl) plugin. In the NaCl plugin, parse the received message using theHandleMessage()function and pass the data to the appropriate playback control function: ...
Since Javascript callbacks arenot precisely timed, the sample-accurate time of the event is passed into the callback function.Use this time value to schedule the events. Instruments There are numerous synths to choose from includingTone.FMSynth,Tone.AMSynthandTone.NoiseSynth. ...