public static void CheapTrick(double[] x, int x_length, int fs, double[] temporal_positions,
double[] f0, int f0_length, CheapTrickOption option,
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>());
}
CoreDefinitions.CheapTrick(x, x_length, fs, temporal_positions, f0, f0_length, option, 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]);
}
}
public void SpectralEnvelopeEstimation(double[] x, int x_length, WorldParameters world_parameters)
{
var option = new CheapTrickOption();
Core.InitializeCheapTrickOption(world_parameters.fs, option);
option.q1 = -0.15;
option.f0_floor = 71.0;
world_parameters.fft_size = Core.GetFFTSizeForCheapTrick(world_parameters.fs, option);
world_parameters.spectrogram = new double[world_parameters.f0_length, world_parameters.fft_size / 2 + 1];
Core.CheapTrick(x, x_length, world_parameters.fs, world_parameters.time_axis,
world_parameters.f0, world_parameters.f0_length, option,
world_parameters.spectrogram);
}
public static void InitializeCheapTrickOption(int fs, CheapTrickOption option) => CoreDefinitions.InitializeCheapTrickOption(fs, option);
public static int GetFFTSizeForCheapTrick(int fs, CheapTrickOption option) => CoreDefinitions.GetFFTSizeForCheapTrick(fs, option);
static extern void InitOption(int fs, [Out] out CheapTrickOption option);
static extern int GetFftSize(int fs, [In] ref CheapTrickOption option);
public static void CheapTrick(double[] x, int x_length, int fs, double[] temporal_positions,
double[] f0, int f0_length, CheapTrickOption option,
double[,] spectrogram)
{
}
static extern void Compute([In] double[] x, int x_length, int fs,
[In] double[] temporal_positions, [In] double[] f0, int f0_length,
[In] ref CheapTrickOption option, [In, Out] IntPtr[] spectrogram);
public static int GetFFTSizeForCheapTrick(int fs, CheapTrickOption option)
{
throw null;
}
public static void InitializeCheapTrickOption(int fs, CheapTrickOption option)
{
}
public static extern int GetFFTSizeForCheapTrick(int fs, [Out] CheapTrickOption option);
public static extern void InitializeCheapTrickOption(int fs, [Out] CheapTrickOption option);
public static extern void CheapTrick([In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] double[] x,
int x_length, int fs, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 5)] double[] temporal_positions,
[In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 5)] double[] f0, int f0_length, [In] CheapTrickOption option,
[In][Out] IntPtr[] spectrogram);
