# Media Element Fallback Example

### How to Enable the Fallback

wavesurfer.js will automatically fallback to HTML5 Media if Web Audio is not supported. However, you can choose to use audio element manually. Simply set the `backend` option to `"MediaElement"`.

    var wavesurfer = Object.create(WaveSurfer);

    wavesurfer.init({
        container: document.querySelector('#wave'),
        backend: 'MediaElement'
    });

### Pre-rendered Peaks

If you have pre-rendered peaks (on your server), you can pass them into the `load` function. This is optional–if you don't provide any peaks, waserver.js will first draw a thin line instead of a waveform, then attempt to download the audio file via Ajax and decode it with Web Audio if available.

    wavesurfer.load('example/media/demo.mp3');

Press this button to see the same demo with pre-decoded peaks:

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