public static float[] ConvertWav2FFTMag(string wavfile, string outfile) { WAVFile audioFile = new WAVFile(); String warning = audioFile.Open(wavfile, WAVFile.WAVFileMode.READ); Complex[] indata = new Complex[MaxSamples]; int IterSamples = (audioFile.NumSamples < MaxSamples) ? audioFile.NumSamples : MaxSamples; float[] indata_mag = null; if (warning == "") { //short audioSample = 0; for (int sampleNum = 0; sampleNum < IterSamples; ++sampleNum) { //audioSample = audioFile.GetNextSampleAs16Bit(); indata[sampleNum].Re = audioFile.GetNextSampleAs16Bit(); } FourierTransform.FFT(indata, FourierTransform.Direction.Forward); indata_mag = GetMagnitude(indata); if (outfile != null) { WriteData(indata_mag, outfile); } } audioFile.Close(); return(indata_mag); }
public static MemoryStream encodeCompressedFromWAV(string source) { WAVFile wav = new WAVFile(); MemoryStream ms = new MemoryStream(); wav.Open(source, WAVFile.WAVFileMode.READ); IMAADPCM.ADPCMState state = new IMAADPCM.ADPCMState(); byte enc1, enc2; for (long i = 0; i < wav.NumSamples / 2; i++) { enc1 = IMAADPCM.encodeADPCM(wav.GetNextSampleAs16Bit(), ref state); enc2 = IMAADPCM.encodeADPCM(wav.GetNextSampleAs16Bit(), ref state); ms.Write(BitConverter.GetBytes(Convert.ToInt32(Utils.binaryString(enc2, 4) + Utils.binaryString(enc1, 4), 2)), 0, 1); } wav.Close(); return(ms); }
/// <summary> /// Converts a WAV file's bits/sample and number of channels to a separate WAV file. /// </summary> /// <param name="pSrcFilename">The name of the file to convert</param> /// <param name="pDestFilename">The destination file name</param> /// <param name="pBitsPerSample">The destination's number of bits/sample</param> /// <param name="pStereo">Whether or not the destination should be stereo</param> /// <param name="pVolumeMultiplier">A multiplier that can be used to adjust the volume of the output audio file</param> public static void CopyAndConvert(String pSrcFilename, String pDestFilename, short pBitsPerSample, bool pStereo, double pVolumeMultiplier) { WAVFile srcFile = new WAVFile(); String retval = srcFile.Open(pSrcFilename, WAVFileMode.READ); if (retval.Length > 0) throw new WAVFileException(retval, "WAVFile.Convert_Copy()"); WAVFile destFile = new WAVFile(); destFile.Create(pDestFilename, pStereo, srcFile.SampleRateHz, pBitsPerSample); if ((srcFile.BitsPerSample == 8) && (pBitsPerSample == 8)) { byte sample = 0; if (srcFile.IsStereo && !pStereo) { // 8-bit to 8-bit, stereo to mono: Average each 2 samples while (srcFile.NumSamplesRemaining > 0) { sample = (byte)((short)((short)srcFile.GetNextSample_8bit() + (short)srcFile.GetNextSample_8bit()) / 2); if (pVolumeMultiplier != 1.0) sample = (byte)((double)sample * pVolumeMultiplier); destFile.AddSample_8bit(sample); } } else if ((srcFile.IsStereo && pStereo) || (!srcFile.IsStereo && !pStereo)) { // 8-bit to 8-bit, stereo to stereo or mono to mono while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSample_8bit(); if (pVolumeMultiplier != 1.0) sample = (byte)((double)sample * pVolumeMultiplier); destFile.AddSample_8bit(sample); } } else if (!srcFile.IsStereo && pStereo) { // 8-bit to 8-bit, mono to stereo: Write each sample twice while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSample_8bit(); if (pVolumeMultiplier != 1.0) sample = (byte)((double)sample * pVolumeMultiplier); destFile.AddSample_8bit(sample); destFile.AddSample_8bit(sample); } } } else if ((srcFile.BitsPerSample == 8) && (pBitsPerSample == 16)) { short sample = 0; if (srcFile.IsStereo && !pStereo) { // 8-bit to 16 bit, stereo to mono: Average each 2 samples while (srcFile.NumSamplesRemaining > 0) { sample = (short)((int)((int)srcFile.GetNextSampleAs16Bit() + (int)srcFile.GetNextSampleAs16Bit()) / 2); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); } } else if ((srcFile.IsStereo && pStereo) || (!srcFile.IsStereo && !pStereo)) { // 8-bit to 16 bit, stereo to stereo or mono to mono while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSampleAs16Bit(); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); } } else if (!srcFile.IsStereo && pStereo) { // 8-bit to 16 bit, mono to stereo: Write each sample twice while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSampleAs16Bit(); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); destFile.AddSample_16bit(sample); } } } else if ((srcFile.BitsPerSample == 16) && (pBitsPerSample == 8)) { byte sample = 0; if (srcFile.IsStereo && !pStereo) { // 16-bit to 8-bit, stereo to mono: Average each 2 samples short sample_16bit = 0; while (srcFile.NumSamplesRemaining > 0) { sample_16bit = (short)((int)srcFile.GetNextSample_16bit() + (int)srcFile.GetNextSample_16bit() / 2); if (pVolumeMultiplier != 1.0) sample_16bit = (short)((double)sample_16bit * pVolumeMultiplier); sample = ScaleShortToByte(sample_16bit); destFile.AddSample_8bit(sample); } } else if ((srcFile.IsStereo && pStereo) || (!srcFile.IsStereo && !pStereo)) { // 16-bit to 8-bit, stereo to stereo or mono to mono while (srcFile.NumSamplesRemaining > 0) { sample = ScaleShortToByte(srcFile.GetNextSample_16bit()); if (pVolumeMultiplier != 1.0) sample = (byte)((double)sample * pVolumeMultiplier); destFile.AddSample_8bit(sample); } } else if (!srcFile.IsStereo && pStereo) { // 16-bit to 8-bit, mono to stereo: Write each sample twice while (srcFile.NumSamplesRemaining > 0) { sample = ScaleShortToByte(srcFile.GetNextSample_16bit()); if (pVolumeMultiplier != 1.0) sample = (byte)((double)sample * pVolumeMultiplier); destFile.AddSample_8bit(sample); destFile.AddSample_8bit(sample); } } } else if ((srcFile.BitsPerSample == 16) && (pBitsPerSample == 16)) { short sample = 0; if (srcFile.IsStereo && !pStereo) { // 16-bit to 16-bit, stereo to mono: Average each 2 samples while (srcFile.NumSamplesRemaining > 0) { sample = (short)((int)((int)srcFile.GetNextSample_16bit() + (int)srcFile.GetNextSample_16bit()) / 2); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); } } else if ((srcFile.IsStereo && pStereo) || (!srcFile.IsStereo && !pStereo)) { // 16-bit to 16-bit, stereo to stereo or mono to mono while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSample_16bit(); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); } } else if (!srcFile.IsStereo && pStereo) { // 16-bit to 16-bit, mono to stereo: Write each sample twice while (srcFile.NumSamplesRemaining > 0) { sample = srcFile.GetNextSample_16bit(); if (pVolumeMultiplier != 1.0) sample = (short)((double)sample * pVolumeMultiplier); destFile.AddSample_16bit(sample); destFile.AddSample_16bit(sample); } } } destFile.Close(); srcFile.Close(); }
public static bool replaceSample(int sampleIndex, string path) { long offset = IVAUDSingle.WIoffset[sampleIndex] + IVAUDSingle.headerSize; byte[] dataBefore = new byte[offset - IVAUDSingle.headerSize]; byte[] dataAfter = new byte[IVAUD.file.Length - (offset + IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex])]; //Get data between header and replaced sample IVAUD.file.Seek(IVAUDSingle.headerSize, SeekOrigin.Begin); IVAUD.file.Read(dataBefore, 0, dataBefore.Length); //Get data between replaced sample and eof IVAUD.file.Seek(offset + IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex], SeekOrigin.Begin); IVAUD.file.Read(dataAfter, 0, dataAfter.Length); //Close file IVAUD.close(); //Open WAV file and encode it WAVFile wav = new WAVFile(); wav.Open(path, WAVFile.WAVFileMode.READ); MemoryStream ms = new MemoryStream(); IMAADPCM.ADPCMState state = new IMAADPCM.ADPCMState(); //byte enc1, enc2; byte[] bytes = new byte[2]; int loopValue = ((wav.DataSizeBytes - 8) / wav.BytesPerSample); /*Debug.WriteLine((((wav.DataSizeBytes - 8) / wav.BytesPerSample)) / 2); * Debug.WriteLine(wav.NumSamples / 2); * Debug.WriteLine((((wav.DataSizeBytes - 8) / wav.BytesPerSample))); * Debug.WriteLine(wav.NumSamples);*/ //for (long i = 0; i < wav.NumSamples / 2; i++) { for (long i = 0; i < loopValue / 2; i++) { bytes[0] = IMAADPCM.encodeADPCM(wav.GetNextSampleAs16Bit(), ref state); bytes[1] = IMAADPCM.encodeADPCM(wav.GetNextSampleAs16Bit(), ref state); ms.Write(BitConverter.GetBytes(Convert.ToInt32(Utils.binaryString(bytes[1], 4) + Utils.binaryString(bytes[0], 4), 2)), 0, 1); } long originalOffset = offset + IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex]; //Change header values IVAUDSingle.WInumSamplesInBytes[sampleIndex] = (int)ms.Length; IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex] = Utils.getPaddedSize(IVAUDSingle.WInumSamplesInBytes[sampleIndex]); IVAUDSingle.WInumSamples16Bit[sampleIndex] = (int)(ms.Length * 2); IVAUDSingle.WIsamplerate[sampleIndex] = (ushort)wav.SampleRateHz; if (IVAUDSingle.WIHsize[sampleIndex] > 32) { IVAUDSingle.WInumSamples16Bit2[sampleIndex] = (uint)(ms.Length * 2); } //Change later offsets long newOffset = offset + IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex]; long offsetChange = newOffset - originalOffset; for (int i = 0; i < IVAUDSingle.WIHoffset.Count; i++) { if ((IVAUDSingle.WIoffset[i] + IVAUDSingle.headerSize) > offset) { IVAUDSingle.WIoffset[i] += offsetChange; } } wav.Close(); //Get WAV data byte[] dataWAV = new byte[ms.Length]; ms.Seek(0, SeekOrigin.Begin); ms.Read(dataWAV, 0, (int)ms.Length); ms.Close(); //Write header FileStream fs = new FileStream(Environment.GetEnvironmentVariable("TEMP") + "\\IVATB\\Current" + Utils.sessionID + ".tmp", FileMode.Open, FileAccess.ReadWrite); fs.Seek(0, SeekOrigin.Begin); if (!IVAUDSingle.write(fs)) { return(false); } //Write before-data fs.Seek(IVAUDSingle.headerSize, SeekOrigin.Begin); fs.Write(dataBefore, 0, dataBefore.Length); //Write sample fs.Seek(offset, SeekOrigin.Begin); fs.Write(dataWAV, 0, dataWAV.Length); //Write after-data fs.Seek(offset + IVAUDSingle.WInumSamplesInBytes_computed[sampleIndex], SeekOrigin.Begin); fs.Write(dataAfter, 0, dataAfter.Length); //Fix file length if needed if (offsetChange < 0) { fs.SetLength(fs.Length + offsetChange); } fs.Close(); //Replace the file //IVAUD.close(); //File.Copy(Environment.GetEnvironmentVariable("TEMP") + "\\IVATB\\Replace" + Utils.sessionID + ".tmp", Environment.GetEnvironmentVariable("TEMP") + "\\IVATB\\Current" + Utils.sessionID + ".tmp", true); //Reload the file IVAUD.load(Environment.GetEnvironmentVariable("TEMP") + "\\IVATB\\Current" + Utils.sessionID + ".tmp"); return(true); }
static void Main(string[] args) { //Debug test //args = (@"E:\Mijn documenten\Visual Studio 2010\ADPCMEncoder\~24000HZTEST.wav|test").Split(Convert.ToChar("|")); //args = (@"E:\Mijn documenten\Visual Studio 2010\ADPCMEncoder\TestFiles\LoadingSNOW.wav|test").Split(Convert.ToChar("|")); //Print header Console.WriteLine("================="); Console.WriteLine("IMA ADPCM Encoder"); Console.WriteLine(" by Flitskikker"); Console.WriteLine("================="); Console.WriteLine(""); //Check args if (args.Length == 0) { //No args Console.WriteLine("ERROR: No command line arguments passed. Press any key to exit..."); Console.ReadLine(); Environment.Exit(1); } //Check file if (!File.Exists(args[0])) { //File not found Console.WriteLine("ERROR: File \"" + args[0] + "\" not found. Press any key to exit..."); Console.ReadLine(); Environment.Exit(2); } //Print file Console.WriteLine("File: " + args[0]); Console.WriteLine(""); //Load file WAVFile wav = new WAVFile(); wav.Open(args[0], WAVFile.WAVFileMode.READ); //Show WAV info Console.WriteLine("WAV Info:"); Console.WriteLine("\tBits per sample:\t" + wav.BitsPerSample.ToString() + " bits"); Console.WriteLine("\tBytes per sample:\t" + wav.BytesPerSample.ToString()); Console.WriteLine("\tBytes per second:\t" + wav.BytesPerSec.ToString()); Console.WriteLine("\tData size:\t\t" + wav.DataSizeBytes.ToString() + " bytes"); Console.WriteLine("\tDuration:\t\t" + Math.Round(Convert.ToDecimal((double)wav.NumSamples / (double)wav.SampleRateHz), 2).ToString() + " seconds (" + Utils.getDurationString(wav.NumSamples, wav.SampleRateHz) + ")"); Console.WriteLine("\tEncoding type:\t\t" + wav.EncodingType.ToString()); Console.WriteLine("\tFile size:\t\t" + wav.FileSizeBytes.ToString() + " bytes"); Console.WriteLine("\t# of channels:\t\t" + wav.NumChannels.ToString()); Console.WriteLine("\t# of samples:\t\t" + wav.NumSamples.ToString()); Console.WriteLine("\tRIFF type:\t\t" + wav.RIFFTypeString); Console.WriteLine("\tSample Rate:\t\t" + wav.SampleRateHz.ToString() + " Hz"); Console.WriteLine("\tWAV header:\t\t" + wav.WAVHeaderString); Console.WriteLine(""); //Check bits if (wav.BitsPerSample != 16) { //Not 16 bits Console.WriteLine("ERROR: WAV should have 16 bits per sample. Press any key to exit..."); Console.ReadLine(); Environment.Exit(1); } //Check bytes per sample if (wav.BytesPerSample / wav.NumChannels != 2) { //Not 2 bytes Console.WriteLine("ERROR: WAV should have (wav.NumChannels * 2) bytes per sample. Press any key to exit..."); Console.ReadLine(); Environment.Exit(1); } //Print message Console.WriteLine("Ready to go! Press any key when ready..."); //Wait for input Console.ReadLine(); if (wav.NumChannels > 1) { //Split channels Console.WriteLine(""); Console.WriteLine("Saving separate channels..."); Console.WriteLine(""); List <WAVFile> wavs = new List <WAVFile>(); for (int c = 0; c < wav.NumChannels; c++) { wavs.Add(new WAVFile()); wavs[c].Create(Path.GetDirectoryName(args[0]) + "\\" + Path.GetFileNameWithoutExtension(args[0]) + "_" + (c + 1).ToString() + ".wav", false, wav.SampleRateHz, wav.BitsPerSample, true); } int numSamplesCorrected = ((wav.DataSizeBytes - 8) / wav.BytesPerSample); //for (long i = 0; i < wav.NumSamples / wav.NumChannels; i++) { for (long i = 0; i < numSamplesCorrected; i++) { for (int c = 0; c < wav.NumChannels; c++) { wavs[c].AddSample_16bit(wav.GetNextSampleAs16Bit()); } } for (int c = 0; c < wav.NumChannels; c++) { wavs[c].Close(); } } //Encode Console.WriteLine(""); Console.WriteLine("Encoding file(s)..."); Console.WriteLine(""); IMAADPCM.ADPCMState state = new IMAADPCM.ADPCMState(); WAVFile cwav = new WAVFile(); int nc = wav.NumChannels; for (int c = 0; c < wav.NumChannels; c++) { Console.WriteLine("Encoding file: " + Path.GetDirectoryName(args[0]) + "\\" + Path.GetFileNameWithoutExtension(args[0]) + "_" + (c + 1).ToString() + ".bin"); MemoryStream ms = new MemoryStream(); cwav = new WAVFile(); // Open splitted WAV if (wav.NumChannels > 1) { cwav.Open(Path.GetDirectoryName(args[0]) + "\\" + Path.GetFileNameWithoutExtension(args[0]) + "_" + (c + 1).ToString() + ".wav", WAVFile.WAVFileMode.READ_WRITE); } else { cwav = wav; //wav.Close(); //cwav.Open(args[0], WAVFile.WAVFileMode.READ_WRITE); } byte[] bytes = new byte[2]; int loopValue = ((cwav.DataSizeBytes - 8) / cwav.BytesPerSample); //Actual encode for (long i = 0; i < loopValue / 2; i++) { bytes[0] = IMAADPCM.encodeADPCM(cwav.GetNextSampleAs16Bit(), ref state); bytes[1] = IMAADPCM.encodeADPCM(cwav.GetNextSampleAs16Bit(), ref state); ms.Write(BitConverter.GetBytes(Convert.ToInt32(Utils.binaryString(bytes[1], 4) + Utils.binaryString(bytes[0], 4), 2)), 0, 1); } //Get WAV data byte[] dataWAV = new byte[ms.Length]; ms.Seek(0, SeekOrigin.Begin); ms.Read(dataWAV, 0, (int)ms.Length); ms.Close(); //Create file FileStream fs = new FileStream(Path.GetDirectoryName(args[0]) + "\\" + Path.GetFileNameWithoutExtension(args[0]) + "_" + (c + 1).ToString() + ".bin", FileMode.Create, FileAccess.ReadWrite); //Write sample fs.Seek(0, SeekOrigin.Begin); fs.Write(dataWAV, 0, dataWAV.Length); //Close cwav.Close(); ms.Close(); fs.Close(); if (nc == 1) { break; } } //Close WAV file wav.Close(); //Print message Console.WriteLine(""); Console.WriteLine("Done! Press any key to exit..."); //Wait for input Console.ReadLine(); //Exit Environment.Exit(0); }