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