基于 webrtc 的安卓 vad 库

在录音的读取buffer过程中，调用 vad.processBuffer(sampleRate, buffer, length); 返回值即为当前buffer中是否在说话有人声 buffer大小建议为sampleRate/10

1. Add it in your root build.gradle at the end of repositories:

	allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

2. Add the dependency

	dependencies {
	       implementation 'com.github.ideastudios:Vad:1.0.1'
	}