语音识别在iOS上出错

我正在研究iOS上的语音识别,但每次调用方法[_recognitionRequest endAudio]时,它总是在recognitionTaskWithRequest中出错：消息在底部.

-(void) stopRecording {
if (_disableSpeechSW == YES) {
    return;
}
if (_isAuthorization == NO) {
    return;
}

NSLog(@"stopRecording");

if ([_audioEngine isRunning]) {
    [_audioEngine stop];
    [_recognitionRequest endAudio];
}

}

-(void) startRecording {
..........
[_speechRecognizer recognitionTaskWithRequest:_recognitionRequest
                   resultHandler:^(SFSpeechRecognitionResult *result,NSError *error){
  if (error != nil ) {
     NSLog(@"%@",[error description]);
  }
  else {
   ..........
  }
}];}

[Utility] +[AFAggregator logDictationFailedWithError:] Error
Domain=kAFAssistantErrorDomain Code=203 “Retry”
UserInfo={NSLocalizedDescription=Retry,NSUnderlyingError=0x17424c690
{Error Domain=SiriSpeechErrorDomain Code=1 “(null)”}}

解决方法

我想通了“endAudio”不允许从RecognitionTaskWithRequest块外面调用,如果你直接调用方法“[self stopRecording]”那么块会立即响应错误“kAFAssistantErrorDomain Code = 203”.

这是我的代码中使用stopRecord的4部分

1和2很好

3和4错误

1.from block→detecedVoice→withVoiceControl→stopRecord→ok

2.from block error→stopRecord→startRecord→ok

3.button tap→stopRecord→kAFAssistantErrorDomain Code = 203

4.timer 40s→stopRecord→startRecord→kAFAssistantErrorDomain Code = 203