/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
// Berlett-Hann function:
float a = Math.Abs(Math.Abs(x / (frameSize - 1)) - 0.5f);
return(0.62f - 0.48f * a - 0.38f * Cosine.cosinefunc(2 * x, frameSize));
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return(0.35875f - 0.48829f * Cosine.cosinefunc(2 * x, frameSize) + 0.14128f * Cosine.cosinefunc(4 * x, frameSize) - 0.01168f * Cosine.cosinefunc(6 * x, frameSize));
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return(0.3635819f - 0.4891775f * Cosine.cosinefunc(2 * x, frameSize) + 0.1365995f * Cosine.cosinefunc(4 * x, frameSize) - 0.0106411f * Cosine.cosinefunc(6 * x, frameSize));
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return(0.53836f - 0.46164f * Cosine.cosinefunc(2 * x, frameSize));
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return(1 - 1.93f * Cosine.cosinefunc(2 * x, frameSize) + 1.29f * Cosine.cosinefunc(4 * x, frameSize) - 0.388f * Cosine.cosinefunc(6 * x, frameSize) + 0.028f * Cosine.cosinefunc(8 * x, frameSize));
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return 0.355768f - 0.487396f * Cosine.cosinefunc(2 * x, frameSize) + 0.144232f * Cosine.cosinefunc(4 * x, frameSize) - 0.012604f * Cosine.cosinefunc(6 * x, frameSize);
}
/// <summary>
/// Returns the value of a window function.
/// </summary>
/// <param name="x">Argument</param>
/// <param name="frameSize">Window size</param>
/// <returns>float precision floating point number</returns>
public override float Function(float x, int frameSize)
{
return(0.42f - 0.5f * Cosine.cosinefunc(2 * x, frameSize) + 0.08f * Cosine.cosinefunc(4 * x, frameSize));
}