public static int ReadSpectralEnvelope(string filename, double[,] spectrogram)
{
int outer = spectrogram.GetLength(0);
int inner = spectrogram.GetLength(1);
IntPtr[] ptrs_sp = new IntPtr[outer];
for (var i = 0; i < outer; i++)
{
ptrs_sp[i] = Marshal.AllocHGlobal(inner * Marshal.SizeOf <double>());
}
var result = ToolsDefinitions.ReadSpectralEnvelope(filename, ptrs_sp);
var tmp_arr = new double[inner];
for (var i = 0; i < spectrogram.GetLength(0); i++)
{
Marshal.Copy(ptrs_sp[i], tmp_arr, 0, inner);
Buffer.BlockCopy(tmp_arr, 0, spectrogram, i * inner * sizeof(double), inner * sizeof(double));
Marshal.FreeHGlobal(ptrs_sp[i]);
}
return(result);
}
public static void WriteAperiodicity(string filename, int fs, int f0_length,
double frame_period, int fft_size, int number_of_dimensions, double[,] aperiodicity)
{
int outer = aperiodicity.GetLength(0);
int inner = aperiodicity.GetLength(1);
IntPtr[] ptr_ap = new IntPtr[outer];
var tmp_arr = new double[inner];
for (var i = 0; i < outer; i++)
{
ptr_ap[i] = Marshal.AllocHGlobal(inner * Marshal.SizeOf <double>());
Buffer.BlockCopy(aperiodicity, i * inner * sizeof(double), tmp_arr, 0, inner * sizeof(double));
Marshal.Copy(tmp_arr, 0, ptr_ap[i], inner);
}
ToolsDefinitions.WriteAperiodicity(filename, fs, f0_length,
frame_period, fft_size, number_of_dimensions, ptr_ap);
for (var i = 0; i < aperiodicity.GetLength(0); i++)
{
Marshal.FreeHGlobal(ptr_ap[i]);
}
}
public static int ReadAperiodicity(string filename, double[,] aperiodicity)
{
int outer = aperiodicity.GetLength(0);
int inner = aperiodicity.GetLength(1);
IntPtr[] ptrs_ap = new IntPtr[outer];
for (var i = 0; i < outer; i++)
{
ptrs_ap[i] = Marshal.AllocHGlobal(inner * Marshal.SizeOf <double>());
}
var result = ToolsDefinitions.ReadAperiodicity(filename, ptrs_ap);
var tmp_arr = new double[inner];
for (var i = 0; i < aperiodicity.GetLength(0); i++)
{
Marshal.Copy(ptrs_ap[i], tmp_arr, 0, inner);
Buffer.BlockCopy(tmp_arr, 0, aperiodicity, i * inner * sizeof(double), inner * sizeof(double));
Marshal.FreeHGlobal(ptrs_ap[i]);
}
return(result);
}
public static void WavRead(string filename, out int fs, out int nbit, double[] x)
{
IntPtr ptr_x = Marshal.AllocHGlobal(Marshal.SizeOf <double>() * x.Length);
ToolsDefinitions.wavread(filename, out fs, out nbit, ptr_x);
Marshal.Copy(ptr_x, x, 0, x.Length);
Marshal.FreeHGlobal(ptr_x);
}
public static int ReadF0(string filename, double[] temporal_positions, double[] f0)
{
IntPtr ptr_temporal_positions = Marshal.AllocHGlobal(Marshal.SizeOf <double>() * temporal_positions.Length);
IntPtr ptr_f0 = Marshal.AllocHGlobal(Marshal.SizeOf <double>() * f0.Length);
var result = ToolsDefinitions.ReadF0(filename, ptr_temporal_positions, ptr_f0);
Marshal.Copy(ptr_temporal_positions, temporal_positions, 0, temporal_positions.Length);
Marshal.Copy(ptr_f0, f0, 0, f0.Length);
Marshal.FreeHGlobal(ptr_temporal_positions);
Marshal.FreeHGlobal(ptr_f0);
return(result);
}
public static int GetAudioLength(string filename) => ToolsDefinitions.GetAudioLength(filename);
public static double GetHeaderInformation(string filename, string parameter) => ToolsDefinitions.GetHeaderInformation(filename, parameter);
public static void WriteF0(string filename, int f0_length, double frame_period,
double[] temporal_positions, double[] f0, int text_flag)
=> ToolsDefinitions.WriteF0(filename, f0_length, frame_period, temporal_positions, f0, text_flag);
public static void WavWrite(double[] x, int x_length, int fs, int nbit, string filename) => ToolsDefinitions.wavwrite(x, x_length, fs, nbit, filename);
