public unsafe void Demodulate(Complex *iq, float *audio, int length)
{
for (int i = 0; i < length; i++)
{
Complex a = iq[i] * this._iqState.Conjugate();
float num = a.Modulus();
if (num > 0f)
{
a /= num;
}
float num2 = a.Argument();
if (!float.IsNaN(num2))
{
audio[i] = num2 * 1E-05f;
}
else
{
audio[i] = 0f;
}
this._iqState = iq[i];
}
if (this._mode == FmMode.Narrow)
{
this.ProcessSquelch(audio, length);
for (int j = 0; j < length; j++)
{
audio[j] *= 0.5f;
}
}
}
