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javascript - JS + HTML5: Uploading an audio blob via …
https://stackoverflow.com/questions/21712237/js-html5-uploading-an-audio-blob-via-html-form
Here is one method to upload a blob (additionally, this uses ajaxForm and iframe set to true for reasons I won't go into but perhaps relevant to your situation). if (audioRecBlob) { var reader = new FileReader (); reader.onload = function (event) { $ ('#audioData').remove (); var audioData = $ ('<input type="hidden" id="audioData" name="audioData">'); audioData.val ( …
799234 - HTML5 audio tag can't play data from a Blob URL.
https://bugzilla.mozilla.org/show_bug.cgi?id=799234
3. Use the Blob constructor, and create a Blob object with the type "audio/ogg". 4. Use the window.URL.createObjectURL function and create a Blob URL to the Blob object created in step 3. 5. Open the URL. Actual result: About 1 second playback, then browser hangup (no crash). Expected result: Full playback of the given audio file, without hangup.
HTML5 audio tag not working with blob audio source | Opera ...
https://forums.opera.com/topic/30624/html5-audio-tag-not-working-with-blob-audio-source
When there is an audio html tag with data source created by URL.createObjectURL (blob), the audio does not load and the player looks similar to this: The audio file itself is in .wav format as MIME type "audio/wav". It is mono, 44100 Hz. This is an example of html for the audio player (on localhost... does not work on the test/production server, too):
HTML Audio - W3Schools
https://www.w3schools.com/html/html5_audio.asp
HTML Audio - How It Works. The controls attribute adds audio controls, like play, pause, and volume.. The <source> element allows you to specify alternative audio files which the browser may choose from. The browser will use the first recognized format. The text between the <audio> and </audio> tags will only be displayed in browsers that do not support the <audio> element.
html5 video - What is a blob URL and why it is used ...
https://stackoverflow.com/questions/30864573/what-is-a-blob-url-and-why-it-is-used
var blob = new Blob([arrayBufferWithPNG], {type: "image/png"}), url = URL.createObjectURL(blob), img = new Image(); img.onload = function() { URL.revokeObjectURL(this.src); // clean-up memory document.body.appendChild(this); // add image to DOM } img.src = url; // can now "stream" the bytes
HTML5 using src using raw binary data - Tutorialspoint
https://www.tutorialspoint.com/HTML5-using-src-using-raw-binary-data
HTML5 using src using raw binary data. If an audio file is stored in database and then we want to use this file as a blob or binary in an application where audio source is according to session then binary data is returned through $ {sessionScope.user.music}. To load the audio file in an audio tag, data:audio/mp3;base64 works well.
Blob - Web APIs | MDN
https://developer.mozilla.org/en-US/docs/Web/API/Blob
The following code reads the content of a Blobas a typed array: constreader =newFileReader();reader.addEventListener('loadend',()=>{// reader.result contains the contents of blob as a typed array});reader.readAsArrayBuffer(blob); Another way to read content from a Blobis to use a Response.
How to Download Blob Videos? (Three Ways)
https://www.videoconverterfactory.com/tips/download-blob-videos.html
Blob, short for Binary Large Object, is a collection of binary data that usually store images, audio, or other multimedia objects. A Blob URL can serve as a URL source for the data contained in the Blob object. However, the Blob URL is generated internally by the browser only.
An Introduction To JavaScript Blobs and File Interface
http://qnimate.com/an-introduction-to-javascript-blobs-and-file-interface/
Creating a Blob A blob can be created using Blob class. //first arguement must be an regular array. The array can be of any javascript objects. Array can contain array to make it multi dimensional //second parameter must be a BlogPropertyBag object containing MIME property var myBlob = new Blob (["This is my blob content"], { type : "text/plain"});
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