license: Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing,
     software distributed under the License is distributed on an
     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied.  See the License for the
     specific language governing permissions and limitations
     under the License.

media.startRecord

Starts recording an audio file.

media.startRecord();

Description

The media.startRecord method executes synchronously, starts a recording for an audio file.

Supported Platforms

Android
iOS
Windows Phone 7 and 8
Windows 8

Quick Example

// Record audio
//
function recordAudio() {
    var src = "myrecording.mp3";
    var mediaRec = new Media(src,
        // success callback
        function() {
            console.log("recordAudio():Audio Success");
        },

        // error callback
        function(err) {
            console.log("recordAudio():Audio Error: "+ err.code);
        });

    // Record audio
    mediaRec.startRecord();
}

Full Example

<!DOCTYPE html>
<html>
  <head>
    <title>Device Properties Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Wait for device API libraries to load
    //
    document.addEventListener("deviceready", onDeviceReady, false);

    // Record audio
    //
    function recordAudio() {
        var src = "myrecording.amr";
        var mediaRec = new Media(src, onSuccess, onError);

        // Record audio
        mediaRec.startRecord();

        // Stop recording after 10 sec
        var recTime = 0;
        var recInterval = setInterval(function() {
            recTime = recTime + 1;
            setAudioPosition(recTime + " sec");
            if (recTime >= 10) {
                clearInterval(recInterval);
                mediaRec.stopRecord();
            }
        }, 1000);
    }

    // device APIs are available
    //
    function onDeviceReady() {
        recordAudio();
    }

    // onSuccess Callback
    //
    function onSuccess() {
        console.log("recordAudio():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>
  </head>
  <body>
    <p id="media">Recording audio...</p>
    <p id="audio_position"></p>
  </body>
</html>

Android Quirks

Android devices record audio in Adaptive Multi-Rate format. The specified file should end with a .amr extension.

iOS Quirks

iOS only records to files of type .wav and returns an error if the file name extension is not correct.
If a full path is not provided, the recording is placed in the application's documents/tmp directory. This can be accessed via the File API using LocalFileSystem.TEMPORARY. Any subdirectory specified at record time must already exist.
Files can be recorded and played back using the documents URI:
```
  var myMedia = new Media("documents://beer.mp3")
```

Tizen Quirks

Not supported on Tizen devices.