/// <summary>
/// 分析多音色波形
/// </summary>
/// <param name="testData">测试波形</param>
/// <param name="refWaveform">参考波形</param>
/// <param name="sampleRate">采样率</param>
/// <param name="peakToPeak">峰峰值</param>
/// <param name="acRms">交流有效电平</param>
/// <param name="dcRms">直流有效电平</param>
/// <param name="max">最大值</param>
/// <param name="min">最小值</param>
/// <param name="tdPlusN">失真和噪声与信号比</param>
/// <param name="acPart">AC部分</param>
/// <param name="powerSpectrum">功率谱值</param>
/// <param name="phaseSpectrum">相位谱</param>
public static void AnalyzeMultiToneWaveform(double[] testData, MultiToneWaveform refWaveform,
double sampleRate, out double peakToPeak, out double acRms, out double dcRms,
out double max, out double min, out double tdPlusN, out double[] acPart,
out double[] powerSpectrum, out double[] phaseSpectrum)
{
MultiToneAnalyzer analyzer = new MultiToneAnalyzer();
analyzer.SetReferenceWaveform((ManagedAudioLibrary.MultiToneWaveform)refWaveform.GetRawWaveform());
// uint pathDelay = AnalyzePathDelay(testData, refWaveform.GetWaveData());
// analyzer.SetDataDelayCounts(pathDelay);
analyzer.SetDataSampleRate(sampleRate);
analyzer.Analyze(testData, (uint)testData.Length);
peakToPeak = analyzer.GetPeakToPeak();
acRms = analyzer.GetAcPart();
dcRms = analyzer.GetDcPart();
max = analyzer.GetMax();
min = analyzer.GetMin();
tdPlusN = analyzer.GetTdPlusN();
acPart = new double[refWaveform.FrequencyPoints];
for (uint i = 0; i < refWaveform.FrequencyPoints; i++)
{
acPart[i] = analyzer.GetAcPart((ushort)i);
}
uint spectrumLength = analyzer.GetSpectrumLength();
powerSpectrum = new double[spectrumLength];
phaseSpectrum = new double[spectrumLength];
analyzer.GetPowerSpectrum(powerSpectrum);
analyzer.GetPhaseSpectrum(phaseSpectrum);
}
public void ShowResult()
{
// easyChart_power.Plot(frequency, powerSpectrum);
ArrayPair <double, double> powerSpectrum = _analyzer.GetPowerSpectrum();
easyChart_power.Plot(powerSpectrum.XData, powerSpectrum.YData);
// easyChart_phase.Plot(frequency, phaseSpectrum);
ArrayPair <double, double> phaseSpectrum = _analyzer.GetPhaseSpectrum();
easyChart_phase.Plot(phaseSpectrum.XData, phaseSpectrum.YData);
StringBuilder dispResult = new StringBuilder();
string newLine = System.Environment.NewLine;
dispResult.Append("Amplitude(V):").Append(newLine).Append(_analyzer.GetPeakToPeak()).Append(newLine);
dispResult.Append("AC RMS(V):").Append(newLine).Append(_analyzer.GetACRms()).Append(newLine);
dispResult.Append("DC RMS(V):").Append(newLine).Append(_analyzer.GetDCRms()).Append(newLine);
dispResult.Append("Max(V):").Append(newLine).Append(_analyzer.GetMax()).Append(newLine);
dispResult.Append("Min(V):").Append(newLine).Append(_analyzer.GetMin()).Append(newLine);
dispResult.Append("TD+N(dB):").Append(newLine).Append(_analyzer.GetTDPlusN()).Append(newLine);
textBox_result.Text = dispResult.ToString();
}
