converting audio file to base64 using javascript

问题:

I want to convert audio file into base64 using Javascript only.

We can convert images into base64 using canvas. But how can we convert audio files.

Any help will be grateful.

回答1:

you can give the below code a try, it uses btoa

function getData(audioFile, callback) {
    var reader = new FileReader();
    reader.onload = function(event) {
        var data = event.target.result.split(',')
         , decodedImageData = btoa(data[1]);                    // the actual conversion of data from binary to base64 format
        callback(decodedImageData);        
    };
    reader.readAsDataURL(audioFile);
}