如何增加android语音识别的监听时间？答案

【问题标题】：How to increase the amount of time android speech recoognition listens for?如何增加android语音识别的监听时间？
【发布时间】：2021-02-23 20:17:49
【问题描述】：

我已尝试放置以下意图数据：
Long googleVoiceTimeout = new Long(15000);

speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS, googleVoiceTimeout);
speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS, googleVoiceTimeout);
speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS,googleVoiceTimeout);
speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS,true);

但即使做了所有这些之后，它仍然会在一秒钟的沉默后停止聆听。没有一致性。帮忙？

非常感谢

【问题讨论】：

标签： android speech-recognition

【解决方案1】：

根据文档，这些值可能无效。这取决于语音识别器的实现，这可能会因不同的 Android 版本和/或不同的手机型号而异。

例如这里是EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS的文档：

/**
 * The amount of time that it should take after we stop hearing speech to consider the input
 * possibly complete. This is used to prevent the endpointer cutting off during very short
 * mid-speech pauses. 
 * 
 * Note that it is extremely rare you'd want to specify this value in an intent. If
 * you don't have a very good reason to change these, you should leave them as they are. Note
 * also that certain values may cause undesired or unexpected results - use judiciously!
 * Additionally, depending on the recognizer implementation, these values may have no effect.
 */
public static final String EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS =
        "android.speech.extras.SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS";

您可以找到here 中描述的所有Intent 属性。

【讨论】：