zhaozhenshun / flutter_baidu_speech_plugin

Flutter baidu speech recognition plugin for ios and android

Flutter Baidu Speech Recognition Plugin

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

• Flutter Baidu Speech Recognition Plugin
  • Getting Started
    • Basic Usage
    • The Callback Listener
  • For iOS developer
    • Project Setting
  • For Android developer

Getting Started

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

dependencies:
    baidu_speech_recognition: 0.1.4

Basic Usage

import 'package:baidu_speech_recognition/baidu_speech_recognition.dart';

BaiduSpeechRecognition _speechRecognition = BaiduSpeechRecognition();

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

The Callback Listener

You can add a listener :

_speechRecognitoin.speechRecognitionEvents
      .listen((String value) {
        // TODO do somethig with the value
      }

The return value is a JSON String :

{
  "type": "The recognition result type",
  "value": "The result"
}

the type have the following value:

type	desc
ready	ready to speaking...
start	detect start speaking...
stop	stop speaking. and return the last result
cancel	cancel the last recognition
finish	return the last recognition
lfinish	long speech return
end	end speaking...
meter	return volume meter level

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 following 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.

Project Setting

Open you project with xcode and go to Pods, select the baidu_speech_recognition TARGETS, then select the Build Settings Tab, Change Mach-O Type to Static Library.Then go to the Build Phases, make sure all the Headers are Public.

If you have any problem or Error Please make a issue.

For Android developer

First become a baidu Developer

The Follow the guide to add some permission and file you need