html5-audio

问题 how can i download mp3 files locally and then play them using a html5 player , the files should be there even user quit the browser or even come back after couple of days. 回答1: HTML5 introduced the manifest attribute to the HTML element, which lets you specify a manifest of files to cache locally. All of the examples I saw cache only HTML, CSS, and JS pages, but you could experiment with caching other types of data. For more information, see: http://www.webreference.com/authoring/languages

问题 [EDIT: this question is about Mozilla Audio Data API which is no longer considered for HTML5 Audio API and not supported] I am trying to change the padding of an audio file using Mozilla audio data API. I haven't found any way to do so. I have even tried to separate channels and pass them through different filters with different dbGain with no luck. 回答1: The key to change the balance of your audio file, is to grab the data (for example of a stereo musicfile) and change the value (amplitude)

问题 I'm trying to use audio elemnt in HTML5 mobile game. I have some problems with sound effects,so I clone the audio elemnt many times in the start of the game like that : for (var i=0; i < 10; i++) { var container = document.getElementById("audioDiv"); var clone = document.getElementById('multiaudio0').cloneNode(true); clone.setAttribute('id',"multiaudio" + i); container.appendChild (clone); }; Then when I need to use it "in collision" ,I call it as NEXT : document.getElementById('audioDiv')

问题 I used to think trigger(play) just fires the native play function of audio, but today I just noticed that there is a slight difference between these two methods. If you register a callback for play , e.g. $('audio').on('play', function() { console.log('playing'); }) , the callback will be invoked twice if you use trigger(play) but only once when using play() . How come this discrepancy? Is it possible to make trigger(play) only fires the play callback once, so as to keep potential bugs away?

问题 <form action="downloads_new.php" method="post"> Track Name :- <b>i run this bitch</b><br /> By :- <a href="profile.php?id=17">DJ Harsha</a><br /> <div id="22"> <button class="playback btn btn-primary btn-sm"><i class="fa fa-play"></i> Play</button> <audio src="memberfiles/17/i run this bitch.mp3"> Your browser does not support HTML5 audio. </audio> <button class="btn btn-sm btn-success" type="submit" name="dwn"><i class="fa fa-download"></i> Download MP3</button> </div> <input type="hidden"

问题 Assuming that I've merged several audio files into a single audio file (thus using only a single HTTP request), can I split them up into several HTML5 audio objects on the client side with JavaScript and, if so, how? Also, if it is possible, would this have any advantages over multiple requests? 回答1: https://developer.mozilla.org/en-US/docs/Using_HTML5_audio_and_video hints that you can do this under "Specifying playback range". When specifying the uri you can add a #start,stop to specify the

问题 On this page http://www.metrovancouver.org/services/solidwaste/Holiday/Pages/Song.aspx I'm using a regular <audio> tag so users can listen to the song. I have a flash fallback on it too for users of IE. In Chrome it works OK. In FireFox 3.6.12, however, I cannot adjust the volume. If I put my mouse over the volume button, the volume slider appears, but as soon as I move my mouse to the slider to adjust, it disappears. I can mute the volume and unmute, but can't manually adjust the slider. Is

问题 I got this simple div: #div-2 { margin-left: auto; margin-right: auto; } and an html5 audio element in the body of my page: <div ID="div-2"> <audio id="a1" src="../../audio/sound_files/mystuff.ogg"></audio> </div> I would like the audio element (that is, the audio controls displayed to the user) to be horizontally centered in the div. Please note I can't specify a width attribute for the audio controls or the audio elements (I tried, did nothing), and as a general rule I don't know the audio

问题 I`m building a mobile-web app, and I am implementing Video & Audio tags. Apparently not all devices know to run all file formats. Modernizr knows to return to me the Codec, but how can I know if my file has this specific codec? I can identify the file extension or mim-type, but than I`ll need to compare the codec with the file extension, and maintain an array with this data, and this seems like a sisyphic task. What do you guys say? Any one knows on a good library that knows provide us with

问题 Please read fully before answering (thank you): I am wanting to seamlessly repeat a track (say 10secs) a given number of times (say 3 times) smoothly by: Extracting the audio from a given audio player - not required, loaded a .wav from a server etc is fine Concatenating the audio n times (adding the track onto the end of itself) Playing the result in a new player How could 2 be done? An example would be great but 2 is the most puzzling. Note: Setting the original player to repeat itself etc