import?java.io.File;
import?java.io.FileInputStream;
import?java.io.FileOutputStream;
import?java.io.FileWriter;

public?class?VoxConvert?{

	private?int?convertFormat?=?1;

	private?int?convertRate?=?8000;

	private?int?convertBits?=?1;

	private?final?int?WAV_HEAD?=?36;//?wav文件頭長度

	private?static?final?int?VF_ADPCM?=?1;//?編碼格式

	private?static?final?int?BIT_RATE_VB_8?=?1;//?每個樣本位數(shù)

	private?static?final?int?BIT_RATE_VB_16?=?2;//?每個樣本位數(shù)

	private?final?int?RESET_VALUE?=?48;

	private?byte?out_val;

	/**
	?*?
	?*?@param?inFile
	?*?@param?outFile
	?*?@param?voxFormat
	?*????????????格式?取值范圍:VF_ADPCM?=?1?VF_MULAW?=?2?VF_ALAW?=?3
	?*?@param?voxRate
	?*????????????采樣率?取值范圍：VR_6K?=?6000?VR_8K?=?8000
	?*?@param?bit_rate
	?*????????????位數(shù)?取值范圍：VB_8?=?1?VB_16?=?2
	?*?@return
	?*/
	public?VoxConvert（String?inFile?String?outFile?int?voxFormat
			int?voxRate?int?bit_rate）?throws?Exception?{
		if?（voxFormat?!=?0）?{
			convertFormat?=?voxFormat;
		}
		if?（voxRate?!=?0）?{
			convertRate?=?voxRate;
		}
		if?（bit_rate?!=?0）?{
			convertBits?=?bit_rate;
		}
		if?（outFile?==?null）?{
			outFile?=?inFile.substring（0?inFile.length（）?-?3）;
			outFile?=?outFile?+?“wav“;
		}

		File?outF?=?new?File（outFile）;
		File?inF?=?new?File（inFile）;

		long?inFileSize?=?inF.length（）;
		if?（voxFormat?==?VF_ADPCM）?{?//?if?using?ADPCM?input?format...
			inFileSize?=?inFileSize?*?2;
		}//?change?from?bytes?to?samples

		FileOutputStream?filewriter?=?new?FileOutputStream（outF?false）;
		String?wavBegin?=?“RIFF“;
		filewriter.write（wavBegin.getBytes（））;//?WAV?文件頭

		long?wavLength?=?inFileSize?*?bit_rate?+?WAV_HEAD;
		byte[]?tmpArr?=?new?byte[4];
		longToIntBinary（wavLength?tmpArr?0）;
		filewriter.write（tmpArr）;//?文件總長度

		String?wavTag?=?“WAVEfmt?“;
		filewriter.write（wavTag.getBytes（））;//?WAV?文件標識

		int?headLength?=?16;
		tmpArr?=?new?byte[4];
		longToIntBinary（headLength?tmpArr?0）;
		filewriter.write（tmpArr）;//?size?of?.WAV?file?header

		int?wFormatTag?=?1;?//?format?tag?（01?=?Windows?PCM）
		tmpArr?=?new?byte[2];
		toShortBinary（wFormatTag?tmpArr?0）;
		filewriter.write（tmpArr）;//?format?tag?（01?=?Windows?PCM）

		int?nChannels?=?1;?//?channels?（1=mono?2=stereo）
		tmpArr?=?new?byte[2];
		toShortBinary（nChannels?tmpArr?0）;
		filewriter.write（tmpArr）;//?channels?（1=mono?2=stereo）

		int?nSamplesPerSec?=?voxRate;?//?samples?per?second
		tmpArr?=?new?byte[4];
		longToIntBinary（nSamplesPerSec?tmpArr?0）;
		filewriter.write（tmpArr）;

		int?nAvgBytesPerSec?=?voxRate?*?bit_rate;?//?bytes?per?second
		//?during?play
		tmpArr?=?new?byte[4];
		longToIntBinary（nAvgBytesPerSec?tmpArr?0）;
		filewriter.write（tmpArr）;

		int?nBlockAlign?=?bit_rate;?//?bytes?per?sample
		tmpArr?=?new?byte[2];
		toShortBinary（nBlockAlign?tmpArr?0）;
		filewriter.write（tmpArr）;//?bytes?per?sample

		int?wBitsPerSample?=?8?*?bit_rate;?//?bits?per?sample
		tmpArr?=?new?byte[2];
		toShortBinary（