跟随旋律摇摆：从原理到实践，解析Android麦克风获取声波方法

package com.coolsoft.app.oklight;
import java.io.File;
import java.io.IOException;
import android.media.MediaRecorder;
import android.os.Handler;
import android.util.Log;
import android.widget.ImageView;
/**
 * amr音频处理
 * 
 * @author hongfa.yy
 * @version 创建时间2012-11-21 下午4:33:28
 */
public class RecordManager {
	private final String TAG = "RecordManager";
	private MediaRecorder mMediaRecorder;
	public static final int MAX_LENGTH = 1000 * 60 * 10;// 最大录音时长1000*60*10;
	private File file;
	public RecordManager(File file,ImageView view) {
		this.file = file;
		this.view=view;
	}
	public RecordManager(File file) {
		this.file = file;
	}
	private long startTime;
	private long endTime;
	/**
	 * 开始录音 使用amr格式
	 * 
	 * @param mRecAudioFile
	 *            录音文件
	 * @return
	 */
	public void startRecord() {
		// 开始录音
		/* ①Initial：实例化MediaRecorder对象 */
		if (mMediaRecorder == null)
			mMediaRecorder = new MediaRecorder();
		try {
			/* ②setAudioSource/setVedi