baidu_speech_recognition 0.1.0

Baidu Speech Recognition Flutter plugin.

Flutter Baidu Speech Recognition Plugin

A speech recognition plugin for flutter using BaiduSDK.See the changelog for more information about the function.

TODO

• iOS support
• Android support

Getting Started

Add this to your package's pubspec.yaml file:

dependencies:
    baidu_speech_recognition: x.x.x

Basic Usage

import 'package:baidu_speech_recognition_example/speech_app.dart';


String _recResult;
StreamSubscription<String> _recCallback;
BaiduSpeechRecognition _speechRecognition = BaiduSpeechRecognition();

// initialize 
_speechRecognition.init().then((value) => print(value));

// For speech recognition result callback 
_recCallback = _speechRecognition.onVoiceRecognition()
      .listen((String result) {

        setState(() {
          if (result != null) {
            _recResult = result;
            print(_recResult);
          }
        });

});

// start long speech recognition 
 _speechRecognition.startLongSpeech().then((value) => print(value)); 

 // start speech recognition 60s long
 _speechRecognition.start().then((value) => print(value));  

// cancel recognition 
 _speechRecognition.cancel().then((value) => print(value));
 
// add listener 
_speechRecognition.speechRecognitionEvents
      .listen((String value) {

        if (value != null) {

        _recResult = jsonDecode(value);
        print(_recResult);

          setState(() {

            switch (_recResult['type']) {
              case 'meter':
                meterLevel = _recResult['value'];
                break;
              case 'finish':
                results.add(_recResult['value']['results_recognition'][0]);
                isStart = false;
                meterLevel = 0;
                break;
              case 'lfinish':
                results.add(_recResult['value']['results_recognition'][0]);
                isStart = false;
                meterLevel = 0;
                break;
              case 'end':
                meterLevel = 0;
                isStart = false;
                break;
              default:
                print(_recResult);
                break;
            }

          });
        }

    });

For iOS developer

Go to 百度ASR download SDK for iOS,then copy BDSClientLib and BDSClientResource to the same directory of you flutter project,the file structure like this:

----------------
  |
  |--Your FLutter Projcet/
  |
  |--BDSClientLib/
  |
  |--BDSCLientResource/

Then open your iOS projcet on Xcode and add the baidu speech SDK library and some resource.

Add BDSClientLib/libBaiduSpeechSDK.a to you project group as "create groups",

Add BDSClientResource/ASR/BDSClientResources to your project group as "create folder references",

Add BDSClientResource/ASR/BDSClientEASRResources to your project group as "create groups".

Add the follow framework to your project:

Framework	Desc
libc++.tbd	For c/c++ func support
libz.1.2.5.tbd	For gzip support
libsqlite3.0.tbd	For sqlite support
libiconv.2.4.0.tbd	Some utility

Finally add Microphone Usage privacy to your info.plist file.