public bool AddFilter(int nFreq, double dGain, double dBandwidth, double dSRate)
{
this.LockFilter();
if (!this.m_lstFilterBank.ContainsKey(nFreq))
{
Biquad biquad = new Biquad();
biquad.RefreshFilter(dGain, (double)nFreq, dSRate, dBandwidth);
this.m_lstFilterBank.Add(nFreq, biquad);
}
this.UnlockFilter();
return(false);
}
public void ModifyFilter(int nOldFreq, int nNewFreq, double dGain, double dBandwidth, double dSRate)
{
this.LockFilter();
if (nOldFreq == nNewFreq)
{
if (this.m_lstFilterBank.ContainsKey(nOldFreq))
{
this.m_lstFilterBank[nOldFreq].RefreshFilter(dGain, (double)nNewFreq, dSRate, dBandwidth);
}
}
else if (this.m_lstFilterBank.ContainsKey(nOldFreq) && !this.m_lstFilterBank.ContainsKey(nNewFreq))
{
this.m_lstFilterBank.Remove(nOldFreq);
Biquad biquad = new Biquad();
biquad.RefreshFilter(dGain, (double)nNewFreq, dSRate, dBandwidth);
this.m_lstFilterBank.Add(nNewFreq, biquad);
}
this.UnlockFilter();
}