private void OnAmplitudeChanged()
{
numAmplitude.Value = _amplitude;
if (_form != null)
{
_form.Amplitude = _amplitude;
}
if (!_fireEvent)
{
return;
}
if (AmplitudeChanged != null)
{
AmplitudeChanged.Invoke(this, null);
}
}
private void DataArrived(object sender, WaveInEventArgs e)
{
double sum = 0;
double[] _waveLeft = new double[e.Buffer.Length / 4];
// Split out channels from sample
for (int i = 0; i < e.Buffer.Length; i += 4)
{
double sample = (double)BitConverter.ToInt16(e.Buffer, i) / 32768.0;
sum += (sample * sample);
}
double rms = Math.Sqrt(sum / (_waveLeft.Length / 2));
double res = 20 * Math.Log10(rms);
AmplitudeChanged?.Invoke(null, new AmplitudeChangedEventArgs(res));
InvokeEventsIfReq(res);
}