讯飞录音,把几个pcm合成为wav

由于讯飞录音是不能把一段很长的话录音出来，只能是一段一段的录,所以要把录出来的pcm数据合成wav文件，录音的采样率是8k, 比特率是16bit,双声道，合并的代码如下:

<span style="font-size:14px;">public static boolean mergePCMFilesToWAVFile(ArrayList<String> fileList,String DESTINATION_PATH) {File[] file = new File[fileList.size()];byte buffer[] = null;int TOTAL_SIZE = 0;int FILE_NUMBER = fileList.size();for (int i = 0; i < FILE_NUMBER; i++) {file[i] = new File(fileList.get(i));TOTAL_SIZE += file[i].length();}// 填入参数，比特率等等。这里用的是16位单声道 8000 hzWaveHeader header = new WaveHeader();// 长度字段 = 内容的大小（TOTAL_SIZE) +// 头部字段的大小(不包括前面4字节的标识符RIFF以及fileLength本身的4字节)header.fileLength = TOTAL_SIZE + (44 - 8);header.FmtHdrLeth = 16;header.BitsPerSample = 16;header.Channels = 2;header.FormatTag = 0x0001;header.SamplesPerSec = 8000;header.BlockAlign = (short) (header.Channels * header.BitsPerSample / 8);header.AvgBytesPerSec = header.BlockAlign * header.SamplesPerSec;header.DataHdrLeth = TOTAL_SIZE;byte[] h = null;try {h = header.getHeader();} catch (IOException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}if (h.length != 44) // WAV标准，头部应该是44字节,如果不是44个字节则不进行转换文件return false;//先删除目标文件File destfile = new File(DESTINATION_PATH);if(destfile.exists())destfile.delete();//合成所有的pcm文件的数据，写到目标文件try {buffer = new byte[1024 * 4]; // Length of All Files, Total SizeInputStream inStream = null;OutputStream ouStream = null;ouStream = new BufferedOutputStream(new FileOutputStream(DESTINATION_PATH));ouStream.write(h, 0, h.length);for (int j = 0; j < FILE_NUMBER; j++) {inStream = new BufferedInputStream(new FileInputStream(file[j]));int size = inStream.read(buffer);while (size != -1) {ouStream.write(buffer);size = inStream.read(buffer);}inStream.close();}ouStream.close();} catch (FileNotFoundException e) {System.out.println("File not found " + e);} catch (IOException ioe) {System.out.println("Exception while reading the file " + ioe);}deleteFiles(fileList);System.out.println("Merge was executed successfully.!");return true;}</span>