private void ComputeDo3Band(byte[] pkgData, long lBytesToWrite, WAVEFORMATEXTENSION _waveFormat)
{
if (GetAudioData(pkgData, lBytesToWrite, _waveFormat))
{
EQSTATE eqs = new EQSTATE();
AudioBandsConfig.init_3band_state(eqs, LowFrequence, HighFrequence, (int)_waveFormat.NSamplesPerSec);
//for (int i = 0; i < m_nNumSamples; i++)
for (int i = 0; i < m_RealIn_RT.Count; i++)
{
m_Band_arr.Add(AudioBandsConfig.do_3band(eqs, m_RealIn_RT[i]));
m_BandLow_arr.Add(AudioBandsConfig.do_3bandLow(eqs, m_RealIn_LT[i]));
}
double A2, dSum = 0, A2Low, dSumLow = 0;
for (int i = 0; i < m_Band_arr.Count; i++)
{
A2 = m_Band_arr[i] * m_Band_arr[i];
dSum += A2;
A2Low = m_BandLow_arr[i] * m_BandLow_arr[i];
dSumLow += A2Low;
}
double dAvg = dSum / m_nNumSamples;
double dAvgLow = dSumLow / m_nNumSamples;
double dFinal = Math.Sqrt(dAvg);
double dFinalLow = Math.Sqrt(dAvgLow);
double dOutput = dFinal * Math.Sqrt(2) / 32768 * 100;
double dOutputLow = dFinalLow * Math.Sqrt(2) / 32768 * 100;
_audiopluseCallBack(dOutput, dOutputLow);
}
}
