private static int test01_ReadWrite8BitsMonoWAVFile()
{
WAV_file my_wav_file = new WAV_file();
my_wav_file.File_name = "dog_bark.wav";
Console.WriteLine( "Nome: " + my_wav_file.File_name );
my_wav_file.Path = ".\\";
// my_wav_file.Path = ".\\Debug\\wav_files\\";
Console.WriteLine( "Path: " + my_wav_file.Path );
my_wav_file.loadFile();
Console.Write(my_wav_file.toWAVHeaderString());
System.Byte[] buffer_8_bits_Mono;
uint numberOfSamples = (uint) my_wav_file.getBuffer_8_bits_mono( out buffer_8_bits_Mono);
// Buffer processing.
Console.WriteLine();
Console.WriteLine();
for (uint i = 0; i < numberOfSamples; i++)
{
// Console.Write( buffer_8_bits_Mono[i].toString() + ".");
}
Console.WriteLine();
Console.WriteLine();
// We are going to save the file on the hard drive with another name.
my_wav_file.File_name = "test01_dog_bark_saved.wav";
my_wav_file.initializeWaveHeaderStructBeforeWriting();
my_wav_file.setBuffer_8_bits_mono(buffer_8_bits_Mono);
my_wav_file.writeFile();
return 0;
}
private static int test02_generate8BitsMono440HzWAVFile()
{
WAV_file my_wav_file = new WAV_file();
my_wav_file.File_name = "test02_A440_8_Bits_Mono.wav";
Console.WriteLine("Nome: " + my_wav_file.File_name);
my_wav_file.Path = ".\\";
// my_wav_file.Path = ".\\Debug\\wav_files\\";
Console.WriteLine("Path: " + my_wav_file.Path);
const System.UInt32 C_SAMPLES_PER_SEC = 8000;
const System.UInt32 C_TIME_SEC = 5;
my_wav_file.BitsPerSample = WAV_file.BITS_PER_SAMPLE.BPS_8_BITS;
my_wav_file.NumOfChannels = WAV_file.NUM_CHANNELS.ONE;
my_wav_file.SampleRate = C_SAMPLES_PER_SEC;
my_wav_file.NumberOfSamples = C_SAMPLES_PER_SEC * C_TIME_SEC; // 5 segundos
my_wav_file.initializeWaveHeaderStructBeforeWriting();
System.Byte[] buffer_8_bits_Mono;
// Allocate the memory for the buffer.
my_wav_file.getBuffer_8_bits_mono(out buffer_8_bits_Mono);
// Fills the buffer with a sinusoidal.
float alphaAngle = 0;
const System.UInt32 C_SIGNAL_FREQUENCY = 440; // 440 Hz La (A)
for (uint i = 0; i < my_wav_file.NumberOfSamples; i++)
{
buffer_8_bits_Mono[i] = (System.Byte) ( ( (Math.Sin(alphaAngle) * (System.Byte.MaxValue / 2)) + (System.Byte.MaxValue / 2) ) );
alphaAngle += (2 * (float) (Math.PI) * C_SIGNAL_FREQUENCY) / C_SAMPLES_PER_SEC;
}
my_wav_file. setBuffer_8_bits_mono(buffer_8_bits_Mono);
my_wav_file.writeFile();
return 0;
}
