如何获取Android中媒体播放器的幅度? [英] How to get amplitude of media player in Android ?

问题描述

我想开发一个vu-meter，它可以对声音做出反应，就像一个 live-wallpaper 谁能帮我...

I want to develop an vu-meter and it reacts with sound, like a live-wallpaper Can anybody help me...

推荐答案

使用MediaRecorder.getMaxAmplitude

Use MediaRecorder.getMaxAmplitude

此方法返回自上次调用此方法以来采样的最大绝对振幅.仅在setAudioSource()之后调用此函数.

This method returns the maximum absolute amplitude that was sampled since the last call to this method. Call this only after the setAudioSource().

http://developer.android.com/reference/android/media/MediaRecorder.html

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