I am using the following code to play sound on the browser:
HTML
<audio id="' + newMessageSoundObjectId + '"><source src="sound.mp3" type="audio/mpeg"></audio>
Javascript
this.newMessageSoundObject = document.getElementById(newMessageSoundObjectId);
// ...
var playPromise = this.newMessageSoundObject.play();
if (playPromise !== undefined) {
playPromise.then(function() {
// Automatic playback started!
}).catch(function(error) {
console.error("Sound was not played: " + error);
});
}
It works well most of the time, but sometimes it randomly stops working for a few minutes and starts again, without reloading the page or navigating. Moreover, console doesn't error any error.
For more context, this is used to play a notification when a user receives a new message.
Is there a better way to ensure sound is played?
You may be running into the situation where it waits to finish the clip before responding to any new clicks.
If so, insert this code at the beginning of your function to reset the clip each time it is clicked:
audio.currentTime = 0; // On each click, rewind clip to start
It would look something like this:
if (playPromise !== undefined) {
playPromise.then(function() {
audio.currentTime = 0; // On each click, rewind clip to start
// Automatic playback started!
}).catch(function(error) {
console.error("Sound was not played: " + error);
});
You may want to consider adjusting your code so it's a bit cleaner. I haven't tested this, but it should work just fine:
const soundObject = document.querySelector("#newMessageSoundObjectId");
soundObject.addEventListener("mousedown", playClip);
function playClip() {
audio.currentTime = 0; // On each click, rewind clip to start
audio.play();
} else {
console.error("Something went wrong");
Trying to play audio files from the external storage of phone.
Went through this plugin first finding the URI for a particular mp3 file. Then passed that to the cordova-plugin-media instance.
// find music file URI from the sdcard
new ExternalStorageSdcardAccess( fileHandler ).scanPath( "file:///storage/C67A-18F7/Music/" );
function fileHandler( fileEntry ) {
// console.log( fileEntry.name + " | " + fileEntry.toURL() );
}
// create a button instance
let mbutton = new Button({
centerX: 0, top: [fbutton,100],
text: 'play music'
}).appendTo(ui.contentView);
// call the play media function from the button
mbutton.on('select', () => {
// load and play the music:
playAudio("file:///storage/C67A-18F7/Music/demo/testSound.mp3")
});
function playAudio(url) {
// Play the audio file at url
var my_media = new Media(url,
// success callback
function () {
console.log("playAudio():Audio Success");
},
// error callback
function (err) {
console.log("playAudio():Audio Error: " + err.code + err.message);
},
// status callback
function (status) {
console.log("playAudio():Audio Status: " + status);
}
);
// Play audio
my_media.play();
my_media.setVolume('1.0');
}
I checked the adb for log. This is what I got specifically hitting those buttons - http://paste.ubuntu.com/25767292/
incoming-operation: 'Call' on 'cordova.plugin' (o13) with method 'exec' with properties {action=create, arguments=["d39113d0-b5f5-bf2d-8a84-5afbbc6ae9a0","file:///storage/C67A-18F7/Music/demo/testSound.mp3"], callbackId=Media975330222}
incoming-operation: 'Call' on 'cordova.plugin' (o13) with method 'exec' with properties {action=startPlayingAudio, arguments=["d39113d0-b5f5-bf2d-8a84-5afbbc6ae9a0","file:///storage/C67A-18F7/Music/demo/testSound.mp3",null], callbackId=INVALID}
outgoing-operation: 'Notify' o13 of 'finish' with arguments {message=S01 Media975330222 s, status=1, keepCallback=false, callbackId=Media975330222}
ExtMediaPlayer-JNI: env->IsInstanceOf fails
MediaPlayer-JNI: JNIMediaPlayerFactory: bIsQCMediaPlayerPresent 0
ExtMediaPlayer-JNI: env->IsInstanceOf fails
MediaPlayer-JNI: JNIMediaPlayerFactory: bIsQCMediaPlayerPresent 0
I am using Capacitor with an ionic react project and was able to get cordova-plugin-media playing local files by using it in conjunction with cordova-plugin-file. I am the ionic-native wrappers, but I think its the same code here.
NOTE: iOS requires you to remove 'file://' and Android does not.
const finishedFilePath = `${File.applicationDirectory}public/assets/audio/file.mp3`;
const hybridTransitionAudioFile = Media.create(isPlatform('ios') ? transitionFilePath.replace('file://', '') : transitionFilePath);
hybridTransitionAudioFile.play();
1- install this
https://play.google.com/store/apps/details?id=com.adobe.phonegap.app&hl=en
2- install this
http://docs.phonegap.com/getting-started/1-install-phonegap/desktop/
3- connect your laptop and your phone on same network
4- follow the getting started on this and run it on your phone , i suppose you wont get the same error , because im my case it dose not work in browser nor emulator in case of phone gap
Reference:
https://phonegap.com/getstarted/
give feed back so i can update my answer here
HTML PART
for audio src
<audio id="successSound" src="/android_asset/www/audio/correct.mp3" type="audio/mpeg"></audio>
<audio id="errorSound" src="/android_asset/www/audio/error.mp3" type="audio/mpeg" ></audio>
</body>
</html>
Example of my version that works i hope there is help in it
playAudio("errorSound");
var my_media = null;
var mediaTimer = null;
function playAudio(id) {
var audioElement = document.getElementById(id);
var src = audioElement.getAttribute('src');
// Create Media object from src
my_media = new Media(src, onSuccess, onError);
// Play audio
my_media.play();
// Update my_media position every second
if (mediaTimer == null) {
mediaTimer = setInterval(function() {
// get my_media position
my_media.getCurrentPosition(
// success callback
function(position) {
if (position > -1) {
setAudioPosition((position) + " sec");
}
},
// error callback
function(e) {
console.log("Error getting pos=" + e);
setAudioPosition("Error: " + e);
}
);
}, 1000);
}
}
function setAudioPosition(position) {
document.getElementById('audio_position').innerHTML = position;
}
// onSuccess Callback
//
function onSuccess() {
}
// onError Callback
function onError(error) {
switch(error.code){
case MediaError.MEDIA_ERR_ABORTED:
alert('MEDIA_ERR_ABORTED code: ' + error.code);
break;
case MediaError.MEDIA_ERR_NETWORK:
alert('MEDIA_ERR_NETWORK code: ' + error.code);
break;
case MediaError.MEDIA_ERR_DECODE:
alert('MEDIA_ERR_DECODE code: ' + error.code);
break;
case MediaError.MEDIA_ERR_NONE_SUPPORTED:
alert('MEDIA_ERR_NONE_SUPPORTED code: ' + error.code);
break;
}
}
I tried to make an image/sound gallery with PhoneGap media plugin, but I ran into one problem. When I click on a picture, the sound plays, but when I click on another one it plays that one too. Any idea how I can let them play one sound at a time?
<script type="text/javascript" charset="utf-8">
// Audio player
//
var my_media = null;
var mediaTimer = null;
// Play audio
//
function playAudio(src) {
// Create Media object from src
my_media = new Media(src, onSuccess, onError);
// Play audio
my_media.play();
// Update my_media position every second
if (mediaTimer == null) {
mediaTimer = setInterval(function() {
// get my_media position
my_media.getCurrentPosition(
// success callback
function(position) {
if (position > -1) {
setAudioPosition((position) + " sec");
}
},
// error callback
function(e) {
console.log("Error getting pos=" + e);
setAudioPosition("Error: " + e);
}
);
}, 1000);
}
}
// Pause audio
//
function pauseAudio() {
if (my_media) {
my_media.pause();
}
}
// Stop audio
//
function stopAudio() {
if (my_media) {
my_media.stop();
}
clearInterval(mediaTimer);
mediaTimer = null;
}
// onSuccess Callback
//
function onSuccess() {
console.log("playAudio():Audio Success");
}
// onError Callback
//
function onError(error) {
alert('code: ' + error.code + '\n' +
'message: ' + error.message + '\n');
}
// Set audio position
//
function setAudioPosition(position) {
document.getElementById('audio_position').innerHTML = position;
}
</script>
<img src="arMonika/audio.png" width="147" height="147" />
<img src="arMonika/k.tech.spec.png" width="141" height="141" />
For those who have the same issue :
When you start defining your player , player or "Media" stores in variable , in your case it is "my_media" .
To solve this problem just define your variable "my_media" as a global var.
and then for each link that should play sound you need to stop your previos media and store new media in that variable like this :
my_media.stop
new Media(src, onSuccess, onError);
just becareful about defining its variable as a GLOBAL variable.
Hoped it helps.
I'm trying to accomplish a simple doodle-like behaviour, where a mp3/ogg sound rings on click, using the html tag. It is supposed to work under Firefox, Safari and Safari iPad is very desireable.
I've tried many approaches and have come down to this:
HTML
<span id="play-blue-note" class="play blue" ></span>
<span id="play-green-note" class="play green" ></span>
<audio id="blue-note" style="display:none" controls preload="auto" autobuffer>
<source src="blue.mp3" />
<source src="blue.ogg" />
<!-- now include flash fall back -->
</audio>
<audio id="green-note" style="display:none" controls preload="auto" autobuffer>
<source src="green.mp3" />
<source src="green.ogg" />
</audio>
JS
function addSource(elem, path) {
$('<source>').attr('src', path).appendTo(elem);
}
$(document).ready(function() {
$('body').delegate('.play', 'click touchstart', function() {
var clicked = $(this).attr('id').split('-')[1];
$('#' + clicked + '-note').get(0).play();
});
});
This seems to work great under Firefox but Safari seems to have a delay whenever you click, even when you click several times and the audio file has loaded. On Safari on iPad it behaves almost unpredictably.
Also, Safari's performance seems to improve when I test locally, I'm guessing Safari is downloading the file each time. Is this possible? How can I avoid this?
Thanks!
On desktop Safari, adding AudioContext fixes the issue:
const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioCtx = new AudioContext();
I found out by accident, so I have no idea why it works, but this removed the delay on my app.
I just answered another iOS/<audio> question a few minutes ago. Seems to apply here as well:
Preloading <audio> and <video> on iOS devices is disabled to save bandwidth.
In Safari on iOS (for all devices, including iPad), where the user may
be on a cellular network and be charged per data unit, preload and
autoplay are disabled. No data is loaded until the user initiates it.
Source: Safari Developer Library
The problem with Safari is that it puts a request every time for the audio file being played. You can try creating an HTML5 cache manifest. Unfortunately my experience has been that you can only add to the cache one audio file at a time. A workaround might be to merge all your audio files sequentially into a single audio file, and start playing at a specific position depending on the sound needed. You can create an interval to track the current play position and pause it once it has reached a certain time stamp.
Read more about creating an HTML5 cache manifest here:
http://www.html5rocks.com/en/tutorials/appcache/beginner/
http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html
Hope it helps!
HTML5 Audio Delay on Safari iOS (<audio> Element vs AudioContext)
Yes, Safari iOS has an audio delay when using the native <audio> Element ...however this can be overcome by using AudioContext.
My code snippet is based on what I learnt from https://lowlag.alienbill.com/
Please test the functionality on your own iOS device (I tested in iOS 12)
https://fiddle.jshell.net/eLya8fxb/51/show/
Snippet from JS Fiddle
https://jsfiddle.net/eLya8fxb/51/
// Requires jQuery
// Adding:
// Strip down lowLag.js so it only supports audioContext (So no IE11 support (only Edge))
// Add "loop" monkey patch needed for looping audio (my primary usage)
// Add single audio channel - to avoid overlapping audio playback
// Original source: https://lowlag.alienbill.com/lowLag.js
if (!window.console) console = {
log: function() {}
};
var lowLag = new function() {
this.someVariable = undefined;
this.showNeedInit = function() {
lowLag.msg("lowLag: you must call lowLag.init() first!");
}
this.load = this.showNeedInit;
this.play = this.showNeedInit;
this.pause = this.showNeedInit;
this.stop = this.showNeedInit;
this.switch = this.showNeedInit;
this.change = this.showNeedInit;
this.audioContext = undefined;
this.audioContextPendingRequest = {};
this.audioBuffers = {};
this.audioBufferSources = {};
this.currentTag = undefined;
this.currentPlayingTag = undefined;
this.init = function() {
this.msg("init audioContext");
this.load = this.loadSoundAudioContext;
this.play = this.playSoundAudioContext;
this.pause = this.pauseSoundAudioContext;
this.stop = this.stopSoundAudioContext;
this.switch = this.switchSoundAudioContext;
this.change = this.changeSoundAudioContext;
if (!this.audioContext) {
this.audioContext = new(window.AudioContext || window.webkitAudioContext)();
}
}
//we'll use the tag they hand us, or else the url as the tag if it's a single tag,
//or the first url
this.getTagFromURL = function(url, tag) {
if (tag != undefined) return tag;
return lowLag.getSingleURL(url);
}
this.getSingleURL = function(urls) {
if (typeof(urls) == "string") return urls;
return urls[0];
}
//coerce to be an array
this.getURLArray = function(urls) {
if (typeof(urls) == "string") return [urls];
return urls;
}
this.loadSoundAudioContext = function(urls, tag) {
var url = lowLag.getSingleURL(urls);
tag = lowLag.getTagFromURL(urls, tag);
lowLag.msg('webkit/chrome audio loading ' + url + ' as tag ' + tag);
var request = new XMLHttpRequest();
request.open('GET', url, true);
request.responseType = 'arraybuffer';
// Decode asynchronously
request.onload = function() {
// if you want "successLoadAudioFile" to only be called one time, you could try just using Promises (the newer return value for decodeAudioData)
// Ref: https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/decodeAudioData
//Older callback syntax:
//baseAudioContext.decodeAudioData(ArrayBuffer, successCallback, errorCallback);
//Newer promise-based syntax:
//Promise<decodedData> baseAudioContext.decodeAudioData(ArrayBuffer);
// ... however you might want to use a pollfil for browsers that support Promises, but does not yet support decodeAudioData returning a Promise.
// Ref: https://github.com/mohayonao/promise-decode-audio-data
// Ref: https://caniuse.com/#search=Promise
// var retVal = lowLag.audioContext.decodeAudioData(request.response);
// Note: "successLoadAudioFile" is called twice. Once for legacy syntax (success callback), and once for newer syntax (Promise)
var retVal = lowLag.audioContext.decodeAudioData(request.response, successLoadAudioFile, errorLoadAudioFile);
//Newer versions of audioContext return a promise, which could throw a DOMException
if (retVal && typeof retVal.then == 'function') {
retVal.then(successLoadAudioFile).catch(function(e) {
errorLoadAudioFile(e);
urls.shift(); //remove the first url from the array
if (urls.length > 0) {
lowLag.loadSoundAudioContext(urls, tag); //try the next url
}
});
}
};
request.send();
function successLoadAudioFile(buffer) {
lowLag.audioBuffers[tag] = buffer;
if (lowLag.audioContextPendingRequest[tag]) { //a request might have come in, try playing it now
lowLag.playSoundAudioContext(tag);
}
}
function errorLoadAudioFile(e) {
lowLag.msg("Error loading webkit/chrome audio: " + e);
}
}
this.playSoundAudioContext = function(tag) {
var context = lowLag.audioContext;
// if some audio is currently active and hasn't been switched, or you are explicitly asking to play audio that is already active... then see if it needs to be unpaused
// ... if you've switch audio, or are explicitly asking to play new audio (that is not the currently active audio) then skip trying to unpause the audio
if ((lowLag.currentPlayingTag && lowLag.currentTag && lowLag.currentPlayingTag === lowLag.currentTag) || (tag && lowLag.currentPlayingTag && lowLag.currentPlayingTag === tag)) {
// find currently paused audio (suspended) and unpause it (resume)
if (context !== undefined) {
// ref: https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/suspend
if (context.state === 'suspended') {
context.resume().then(function() {
lowLag.msg("playSoundAudioContext resume " + lowLag.currentPlayingTag);
return;
}).catch(function(e) {
lowLag.msg("playSoundAudioContext resume error for " + lowLag.currentPlayingTag + ". Error: " + e);
});
return;
}
}
}
if (tag === undefined) {
tag = lowLag.currentTag;
}
if (lowLag.currentPlayingTag && lowLag.currentPlayingTag === tag) {
// ignore request to play same sound a second time - it's already playing
lowLag.msg("playSoundAudioContext already playing " + tag);
return;
} else {
lowLag.msg("playSoundAudioContext " + tag);
}
var buffer = lowLag.audioBuffers[tag];
if (buffer === undefined) { //possibly not loaded; put in a request to play onload
lowLag.audioContextPendingRequest[tag] = true;
lowLag.msg("playSoundAudioContext pending request " + tag);
return;
}
// need to create a new AudioBufferSourceNode every time...
// you can't call start() on an AudioBufferSourceNode more than once. They're one-time-use only.
var source;
source = context.createBufferSource(); // creates a sound source
source.buffer = buffer; // tell the source which sound to play
source.connect(context.destination); // connect the source to the context's destination (the speakers)
source.loop = true;
lowLag.audioBufferSources[tag] = source;
// find current playing audio and stop it
var sourceOld = lowLag.currentPlayingTag ? lowLag.audioBufferSources[lowLag.currentPlayingTag] : undefined;
if (sourceOld !== undefined) {
if (typeof(sourceOld.noteOff) == "function") {
sourceOld.noteOff(0);
} else {
sourceOld.stop();
}
lowLag.msg("playSoundAudioContext stopped " + lowLag.currentPlayingTag);
lowLag.audioBufferSources[lowLag.currentPlayingTag] = undefined;
lowLag.currentPlayingTag = undefined;
}
// play the new source audio
if (typeof(source.noteOn) == "function") {
source.noteOn(0);
} else {
source.start();
}
lowLag.currentTag = tag;
lowLag.currentPlayingTag = tag;
if (context.state === 'running') {
lowLag.msg("playSoundAudioContext started " + tag);
} else if (context.state === 'suspended') {
/// if the audio context is in a suspended state then unpause (resume)
context.resume().then(function() {
lowLag.msg("playSoundAudioContext started and then resumed " + tag);
}).catch(function(e) {
lowLag.msg("playSoundAudioContext started and then had a resuming error for " + tag + ". Error: " + e);
});
} else if (context.state === 'closed') {
// ignore request to pause sound - it's already closed
lowLag.msg("playSoundAudioContext failed to start, context closed for " + tag);
} else {
lowLag.msg("playSoundAudioContext unknown AudioContext.state for " + tag + ". State: " + context.state);
}
}
this.pauseSoundAudioContext = function() {
// not passing in a "tag" parameter because we are playing all audio in one channel
var tag = lowLag.currentPlayingTag;
var context = lowLag.audioContext;
if (tag === undefined) {
// ignore request to pause sound as nothing is currently playing
lowLag.msg("pauseSoundAudioContext nothing to pause");
return;
}
// find currently playing (running) audio and pause it (suspend)
if (context !== undefined) {
// ref: https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/suspend
if (context.state === 'running') {
lowLag.msg("pauseSoundAudioContext " + tag);
context.suspend().then(function() {
lowLag.msg("pauseSoundAudioContext suspended " + tag);
}).catch(function(e) {
lowLag.msg("pauseSoundAudioContext suspend error for " + tag + ". Error: " + e);
});
} else if (context.state === 'suspended') {
// ignore request to pause sound - it's already suspended
lowLag.msg("pauseSoundAudioContext already suspended " + tag);
} else if (context.state === 'closed') {
// ignore request to pause sound - it's already closed
lowLag.msg("pauseSoundAudioContext already closed " + tag);
} else {
lowLag.msg("pauseSoundAudioContext unknown AudioContext.state for " + tag + ". State: " + context.state);
}
}
}
this.stopSoundAudioContext = function() {
// not passing in a "tag" parameter because we are playing all audio in one channel
var tag = lowLag.currentPlayingTag;
if (tag === undefined) {
// ignore request to stop sound as nothing is currently playing
lowLag.msg("stopSoundAudioContext nothing to stop");
return;
} else {
lowLag.msg("stopSoundAudioContext " + tag);
}
// find current playing audio and stop it
var source = lowLag.audioBufferSources[tag];
if (source !== undefined) {
if (typeof(source.noteOff) == "function") {
source.noteOff(0);
} else {
source.stop();
}
lowLag.msg("stopSoundAudioContext stopped " + tag);
lowLag.audioBufferSources[tag] = undefined;
lowLag.currentPlayingTag = undefined;
}
}
this.switchSoundAudioContext = function(autoplay) {
lowLag.msg("switchSoundAudioContext " + (autoplay ? 'and autoplay' : 'and do not autoplay'));
if (lowLag.currentTag && lowLag.currentTag == 'audio1') {
lowLag.currentTag = 'audio2';
} else {
lowLag.currentTag = 'audio1';
}
if (autoplay) {
lowLag.playSoundAudioContext();
}
}
this.changeSoundAudioContext = function(tag, autoplay) {
lowLag.msg("changeSoundAudioContext to tag " + tag + " " + (autoplay ? 'and autoplay' : 'and do not autoplay'));
if(tag === undefined) {
lowLag.msg("changeSoundAudioContext tag is undefined");
return;
}
lowLag.currentTag = tag;
if (autoplay) {
lowLag.playSoundAudioContext();
}
}
this.msg = function(m) {
m = "-- lowLag " + m;
console.log(m);
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script>
// AudioContext
$(document).ready(function() {
lowLag.init();
lowLag.load(['https://coubsecure-s.akamaihd.net/get/b86/p/coub/simple/cw_looped_audio/f0dab49f867/083bf409a75db824122cf/med_1550250381_med.mp3'], 'audio1');
lowLag.load(['https://coubsecure-s.akamaihd.net/get/b173/p/coub/simple/cw_looped_audio/0d5adfff2ee/80432a356484068bb0e15/med_1550254045_med.mp3'], 'audio2');
// starts with audio1
lowLag.changeSoundAudioContext('audio1', false);
});
// ----------------
// Audio Element
$(document).ready(function() {
var $audioElement = $('#audioElement');
var audioEl = $audioElement[0];
var audioSources = {
"audio1": "https://coubsecure-s.akamaihd.net/get/b86/p/coub/simple/cw_looped_audio/f0dab49f867/083bf409a75db824122cf/med_1550250381_med.mp3",
"audio2": "https://coubsecure-s.akamaihd.net/get/b173/p/coub/simple/cw_looped_audio/0d5adfff2ee/80432a356484068bb0e15/med_1550254045_med.mp3"
};
playAudioElement = function() {
audioEl.play();
}
pauseAudioElement = function() {
audioEl.pause();
}
stopAudioElement = function() {
audioEl.pause();
audioEl.currentTime = 0;
}
switchAudioElement = function(autoplay) {
var source = $audioElement.attr('data-source');
if (source && source == 'audio1') {
$audioElement.attr('src', audioSources.audio2);
$audioElement.attr('data-source', 'audio2');
} else {
$audioElement.attr('src', audioSources.audio1);
$audioElement.attr('data-source', 'audio1');
}
if (autoplay) {
audioEl.play();
}
}
changeAudioElement = function(tag, autoplay) {
var source = $audioElement.attr('data-source');
if(tag === undefined || audioSources[tag] === undefined) {
return;
}
$audioElement.attr('src', audioSources[tag]);
$audioElement.attr('data-source', tag);
if (autoplay) {
audioEl.play();
}
}
changeAudioElement('audio1', false); // starts with audio1
});
</script>
<h1>
AudioContext (api)
</h1>
<button onClick="lowLag.play();">Play</button>
<button onClick="lowLag.pause();">Pause</button>
<button onClick="lowLag.stop();">Stop</button>
<button onClick="lowLag.switch(true);">Swtich</button>
<button onClick="lowLag.change('audio1', true);">Play 1</button>
<button onClick="lowLag.change('audio2', true);">Play 2</button>
<hr>
<h1>
Audio Element (api)
</h1>
<audio id="audioElement" controls loop preload="auto" src="">
</audio>
<br>
<button onClick="playAudioElement();">Play</button>
<button onClick="pauseAudioElement();">Pause</button>
<button onClick="stopAudioElement();">Stop</button>
<button onClick="switchAudioElement(true);">Switch</button>
<button onClick="changeAudioElement('audio1', true);">Play 1</button>
<button onClick="changeAudioElement('audio2', true);">Play 2</button>
Apple decided (to save money on celluar) to not pre-load <audio> and <video> HTML elements.
From the Safari Developer Library:
In Safari on iOS (for all devices, including iPad), where the user may
be on a cellular network and be charged per data unit, preload and
autoplay are disabled. No data is loaded until the user initiates it.
This means the JavaScript play() and load() methods are also inactive
until the user initiates playback, unless the play() or load() method
is triggered by user action. In other words, a user-initiated Play
button works, but an onLoad="play()" event does not.
This plays the movie: <input type="button" value="Play" onClick="document.myMovie.play()">
This does nothing on iOS: <body onLoad="document.myMovie.play()">
I don't think you can bypass this restriction, but you might be able to.
Remember: Google is your best friend.
Update: After some experimenting, I found a way to play the <audio> with JavaScript:
var vid = document.createElement("iframe");
vid.setAttribute('src', "http://yoursite.com/yourvideooraudio.mp4"); // replace with actual source
vid.setAttribute('width', '1px');
vid.setAttribute('height', '1px');
vid.setAttribute('scrolling', 'no');
vid.style.border = "0px";
document.body.appendChild(vid);
Note: I only tried with <audio>.
Update 2: jsFiddle here. Seems to work.
Unfortunately, the only way to make it work properly in Safari we need to use WebAudio API, or third-party libs to handle this. Check the source code here (it's not minified)
https://drums-set-js.herokuapp.com/index.html
https://drums-set-js.herokuapp.com/app.js
Same issue. I tried to preload it via different ways. Finally I wrapped animation logic to "playing" callback. So this logic should work only if file loaded and playing started, but as a result I see that animation logic already started, and audio playing with around 2 seconds delay.
It's braking my mind, how it can has delay if audio already called "playing" callback?
Audio Context resolved my issue.
The simplest example I found here
https://developer.mozilla.org/en-US/docs/Web/API/Body/arrayBuffer
getData - preparing your audio file;
then you can play it with source.start(0);
This link missed how to get audioCtx you can copy it here
let audioCtx = new (window.AudioContext || window.webkitAudioContext)();
your audio files are loaded once then cached.. playing the sounds repeatedly, even after page refresh, did not cause further HTTP requests in Safari..
i just had a look at one of your sounds in an audio editor - there was a small amount of silence at the beginning of the file.. this will manifest as latency..
is the Web Audio API a viable option for you?
I am having this same issue. What is odd is that I am preloading the file. But with WiFi it plays fine, but on phone data, there is a long delay before starting. I thought that had something to do with load speeds, but I do not start playing my scene until all images and the audio file are loaded. Any suggestions would be great. (I know this isn't an answer but I thought it better that making a dup post).
I would simply create <audio autoplay /> dom element on click, this works in all major browsers - no need to handle events and trigger play manually
if you want to respond to audio status change manually - I would suggest to listen for play event instead of loadeddata - it's behavior is more consistent in different browsers
If you have a small/short audio file that doesn't require a lot of audio clarity, you can convert the audio file to base64 encoding.
This way the audio file will be text based and doesn't have latency related to downloading the audio file, since iOS downloads the audio pretty much when it's played.
On one hand, it's nice what iOS does to prevent abuse. On the other hand, it's annoying when it gets in the way of legitimate usage.
Here's a base64 encoder for audio files.