package cn.xuan.test;
import org.apache.commons.io.IOUtils;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;
/**
* FileName: WavToPcm
* Author: xuan zongjun
* Date: 2018/10/22 17:30
* Description:
*/
public class WavToPcm {
/**
* WAV转PCM文件
* @param wavfilepath wav文件路径
* @param pcmfilepath pcm要保存的文件路径及文件名
* @return
*/
public static String convertAudioFiles(String wavfilepath,String pcmfilepath){
FileInputStream fileInputStream;
FileOutputStream fileOutputStream;
try {
fileInputStream = new FileInputStream(wavfilepath);
fileOutputStream = new FileOutputStream(pcmfilepath);
byte[] wavbyte = InputStreamToByte(fileInputStream);
byte[] pcmbyte = Arrays.copyOfRange(wavbyte, 44, wavbyte.length);
fileOutputStream.write(pcmbyte);
IOUtils.closeQuietly(fileInputStream);
IOUtils.closeQuietly(fileOutputStream);
} catch (Exception e) {
System.out.println(e.getMessage());
}
return pcmfilepath;
}
/**
* 输入流转byte二进制数据
* @param fis
* @return
* @throws IOException
*/
private static byte[] InputStreamToByte(FileInputStream fis) throws IOException {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
long size = fis.getChannel().size();
byte[] buffer = null;
if (size <= Integer.MAX_VALUE) {
buffer = new byte[(int) size];
} else {
buffer = new byte[8];
for (int ix = 0; ix < 8; ++ix) {
int offset = 64 - (ix + 1) * 8;
buffer[ix] = (byte) ((size >> offset) & 0xff);
}
}
int len;
while ((len = fis.read(buffer)) != -1) {
byteStream.write(buffer, 0, len);
}
byte[] data = byteStream.toByteArray();
IOUtils.closeQuietly(byteStream);
return data;
}
public static void main(String[] args) {
String wavFilePath="F:\\工作文档\\惟乐对接\\pcmpcmpcm(1).wav";
String pcmFilePath="F:\\工作文档\\惟乐对接\\pcmpcmpcm(1).pcm";
convertAudioFiles(wavFilePath,pcmFilePath);
System.out.println("OK");
}
}
需要的jar包：commons-io-2.6-bin.zip
