如何在颤动的音频文件中进行语音识别

Question

如何在颤动的音频文件中进行语音识别。

我有可以立即识别的代码。如何从文件中重新获得知识？

      Widget build(BuildContext context) {
    return new Center(
      child: new Padding(
        padding: new EdgeInsets.all(8.0),
        child: new Column(
            mainAxisAlignment: MainAxisAlignment.spaceAround,
            children: <Widget>[
              new FlatButton(
                onPressed: _isRecording ? null : _start,
                child: new Text("Start"),
                color: Colors.green,
              ),
              new FlatButton(
                onPressed: _isRecording ? _stop : null,
                child: new Text("Stop"),
                color: Colors.red,
              ),
              new TextField(
                controller: _controller,
                decoration: new InputDecoration(
                  hintText: 'Enter a custom path',
                ),
              ),
              new Text("File path of the record: ${_recording.path}"),
              new Text("Format: ${_recording.audioOutputFormat}"),
              new Text("Extension : ${_recording.extension}"),
              new Text(
                  "Audio recording duration : ${_recording.duration.toString()}")
            ]),
      ),
    );
  }

我想在确认讲话的同时进行录音。但是我没有成功。

我正在使用的两个示例是：

Audio recorder

Speech Recognition