Wav.rar_wav 读 vc 数据_wav java_wav文件读取_保存wav_读取pcm数据

package com.kinview.record; import java.io.DataInputStream; import java.io.FileOutputStream; import java.io.IOException; import com.kinview.all.print; import com.kinview.gis.Convert; public class Wav { public void readRIFF(DataInputStream dis) { print.out("读wav头开始"); String id; int size; String type; try { byte[] tmp = new byte[4]; dis.read(tmp); id = new String(tmp); print.out("id="+id); size = Convert.HLint(dis.readInt()); print.out("size="+size); dis.read(tmp); type = new String(tmp); print.out("type="+type); } catch (IOException e) { e.printStackTrace(); } } public void readFormat(DataInputStream dis) { print.out("读wav格式开始"); String id =""; int size; int formatTag; //编码方式 int Channels ; //声道数 int SamplesPerSec ;//采样率 int AvgBytesPerSec;// 4 Bytes | 每秒所需字节数 int BlockAlign;// | 2 Bytes | 数据块对齐单位(每个采样需要的字节数) int BitsPerSample;// | 2 Bytes | 每个采样需要的bit数 int addInfo; //附加信息 try { byte[] tmp = new byte[4]; dis.read(tmp); id = new String(tmp); print.out("id="+id); size = Convert.HLint(dis.readInt()); print.out("size="+size); formatTag = dis.read(); formatTag = formatTag + (((int)dis.read())<<8); print.out("formatTag="+Integer.toString(formatTag, 16)); Channels = dis.read(); Channels = Channels + (((int)dis.read())<<8); print.out("Channels="+Channels); SamplesPerSec = Convert.HLint(dis.readInt()); print.out("SamplesPerSec="+SamplesPerSec); AvgBytesPerSec = Convert.HLint(dis.readInt()); print.out("AvgBytesPerSec="+AvgBytesPerSec); BlockAlign = read2int(dis); print.out("BlockAlign="+BlockAlign +"字节"); BitsPerSample = read2int(dis); print.out("BitsPerSample="+BitsPerSample); //判断有无附加信息 if(size==16){ //无附加信息 }else if(size==18){ addInfo = read2int(dis); print.out("addInfo="+addInfo); } } catch (Exception e) { e.printStackTrace(); } } public void readData (DataInputStream dis) { print.out("读wav数据开始"); String id =""; int size; byte[] data; //编码方式 try{ byte[] tmp = new byte[4]; dis.read(tmp); id = new String(tmp); print.out("id="+id); size = Convert.HLint(dis.readInt()); print.out("size="+size); data = new byte[size]; dis.read(data); // FileOutputStream fos = new FileOutputStream("d:\\a.pcm"); // fos.write(data); // fos.flush(); // fos.close(); } catch (Exception e) { e.printStackTrace(); } } public int read2int(DataInputStream dis){ try { int tmp = dis.read(); tmp = tmp + (((int)dis.read())<<8); return tmp; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); return 0; } } }