Android的语音识别特定的声音音调 [英] Android Speech Recognition for specific sound pitch

问题描述

我们可以检测'尖叫'或'响亮的声音等采用Android语音识别的API？ 或者是有其他的软件/第三方工具，它可以这样做？

Can we detect 'scream' or 'loud sound' etc using Android Speech Recognition APIs? Or is there is any other software/third party tool that can do the same?

谢谢， KAPS

推荐答案

您的意思是实现一个拍板？

You mean implement a clapper?

有没有必要使用花哨的数学或语音识别API。只需使用MediaRecorder及其getMaxAmplitute（）方法。

There's no need to use fancy math or the speech recognition API. Just use the MediaRecorder and its getMaxAmplitute() method.

下面是一些code，你将需要。 的算法，记录了一段时间，然后测量amplitute差。如果是大，那么用户可能做出一个响亮的声音。

Here is some of code you'll need. The algorithm, records for a period of time and then measures the amplitute difference. If it is large, then the user probably made a loud sound.

public void recordClap()
{
    recorder.start();

    int startAmplitude = recorder.getMaxAmplitude();
    Log.d(D_LOG, "starting amplitude: " + startAmplitude);
boolean ampDiff;
do
{
    Log.d(D_LOG, "waiting while taking in input");
    waitSome();
    int finishAmplitude = 0;
    try
    {
        finishAmplitude = recorder.getMaxAmplitude();
    }
    catch (RuntimeException re)
    {
        Log.e(D_LOG, "unable to get the max amplitude " + re);
    }
    ampDiff = checkAmplitude(startAmplitude, finishAmplitude);
    Log.d(D_LOG, "finishing amp: " + finishAmplitude + " difference: " + ampDiff );
}
while (!ampDiff && recorder.isRecording());

}

private boolean checkAmplitude(int startAmplitude, int finishAmplitude)
{
    int ampDiff = finishAmplitude - startAmplitude;
    Log.d(D_LOG, "amplitude difference " + ampDiff);
    return (ampDiff >= 10000);
}

这篇关于Android的语音识别特定的声音音调的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！