/// <summary>
/// 构造SteppedSineWaveform
/// </summary>
/// <param name="sourceWaveform">源波形</param>
/// <param name="equalizer">均衡器</param>
public SteppedSineWaveform(SteppedSineWaveform sourceWaveform, SteppedSineEqualizer equalizer)
{
this.SampleRate = sourceWaveform.SampleRate;
double maxEqalizer = 0;
for (ushort i = 0; i < equalizer.GetPointsOfEQ(); i++)
{
// TODO 凌华的均衡器实际数值是倒数，待确认
maxEqalizer = Math.Abs(equalizer.GetEQ(i)) < maxEqalizer
? Math.Abs(equalizer.GetEQ(i))
: maxEqalizer;
}
this.Amplitude = sourceWaveform.Amplitude / (maxEqalizer > 0 ? maxEqalizer : 1);
this.FrequencyMax = sourceWaveform.FrequencyMax;
this.FrequencyMin = sourceWaveform.FrequencyMin;
this.Steps = sourceWaveform.Steps;
this.MinCycle = sourceWaveform.MinCycle;
this.MinDuration = sourceWaveform.MinDuration;
this.IsLog = sourceWaveform.IsLog;
this.IsInverse = sourceWaveform.IsInverse;
var waveform = new ManagedAudioLibrary.SteppedSineWaveform();
var rawWaveform = sourceWaveform.GetRawWaveform() as ManagedAudioLibrary.SteppedSineWaveform;
var rawEqualizer = equalizer.GetRawEqualizer() as ManagedAudioLibrary.SteppedSineEqualizer;
waveform.CreateData(rawWaveform, rawEqualizer);
RawWaveform = waveform;
}
private void InitControls(SteppedSineEqualizer lastEqualizer, uint steps, double amplitude)
{
if (null == lastEqualizer || lastEqualizer.GetPointsOfEQ() != steps ||
amplitude < lastEqualizer.TargetAmplitude || lastEqualizer.TargetAmplitude < amplitude / 10)
{
return;
}
for (ushort i = 0; i < steps; i++)
{
if (Math.Abs(lastEqualizer.GetEQ(i)) > 0.00001)
{
// TODO equalizer value is the 1/value, to Confirm
_equalizers[i].Value = 1 / lastEqualizer.GetEQ(i);
}
}
}