watson-speech
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IBM Watson Speech to Text and Text to Speech SDK for web browsers.
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<h1 class="page-title">Source: recognize-blob.js</h1>
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<pre class="prettyprint source linenums"><code>/**
* Copyright 2015 IBM Corp. All Rights Reserved.
*
* Licensed 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.
*/
'use strict';
var ReadableBlobStream = require('readable-blob-stream');
var RecognizeStream = require('./recognize-stream.js');
var FilePlayer = require('./file-player.js');
/**
* Create and return a RecognizeStream from a File or Blob
* (e.g. from a file <input>, a dtagdrop targe, or an ajax request)
*
* @param {Object} options - Also passed to {MediaElementAudioStream} and to {RecognizeStream}
* @param {String} options.token - Auth Token - see https://github.com/watson-developer-cloud/node-sdk#authorization
* @param {Blob|File} options.data - the raw audio data as a Blob or File instance
* @param {Boolean} [options.play=true] - If a file is set, play it locally as it's being uploaded
*
* @returns {RecognizeStream}
*/
module.exports = function recognizeBlob(options) {
if (!options || !options.token) {
throw new Error("WatsonSpeechToText: missing required parameter: opts.token");
}
var recognizeStream = new RecognizeStream(options);
if (options.playFile) {
FilePlayer.playFile(options.data).then(function (player) {
recognizeStream.on('stop', player.stop.bind(player));
}).catch(function (err) {
recognizeStream.emit('playback-error', err);
});
}
return new ReadableBlobStream(options.data).pipe(recognizeStream);
};
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="FormatStream.html">FormatStream</a></li><li><a href="MediaElementAudioStream.html">MediaElementAudioStream</a></li><li><a href="RecognizeStream.html">RecognizeStream</a></li><li><a href="TimingStream.html">TimingStream</a></li></ul><h3>Events</h3><ul><li><a href="MicrophoneStream.html#event:data">data</a></li><li><a href="MicrophoneStream.html#event:raw">raw</a></li><li><a href="RecognizeStream.html#event:connection-close">connection-close</a></li><li><a href="RecognizeStream.html#event:data">data</a></li><li><a href="RecognizeStream.html#event:error">error</a></li><li><a href="RecognizeStream.html#event:results">results</a></li></ul><h3>Global</h3><ul><li><a href="global.html#MAX_WAV">MAX_WAV</a></li></ul>
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