private void CreateFilters()
{
for (int bandIndex = 0; bandIndex < bandCount; bandIndex++)
{
EqualizerBand band = bands[bandIndex];
for (int n = 0; n < channels; n++)
{
if (filters[n, bandIndex] == null)
{
filters[n, bandIndex] = BiQuadFilter.PeakingEQ(
sourceProvider.WaveFormat.SampleRate,
band.Frequency,
band.Bandwidth,
band.Gain);
}
else
{
filters[n, bandIndex].SetPeakingEq(
sourceProvider.WaveFormat.SampleRate,
band.Frequency,
band.Bandwidth,
band.Gain);
}
}
}
}
public void Update(EqualizerBand highPass, EqualizerBand lowPass)
{
updated = true;
HighPass = highPass;
LowPass = lowPass;
}
/// <summary>
/// イコライザの設定値を変更する
/// </summary>
/// <param name="bandIdx"></param>
/// <param name="channels"></param>
/// <param name="sampleRate"></param>
/// <param name="band"></param>
private void Update(int bandIdx, int channels, int sampleRate, EqualizerBand band)
{
for (int channelIdx = 0; channelIdx < channels; ++channels)
{
this._filters[channelIdx, bandIdx].SetPeakingEq(sampleRate, band.Frequency, band.BandWidth, band.Gain);
}
}
/// <summary>
/// イコライザの設定値を変更する
/// </summary>
/// <param name="band"></param>
public void Update(EqualizerBand band)
{
int bandIdx = this._bands.IndexOf(band);
var format = this._sourceProvider.WaveFormat;
this.Update(bandIdx, format.Channels, format.SampleRate, band);
}
public PassFiltersSampleProvider(ISampleProvider sourceProvider, EqualizerBand highPass, EqualizerBand lowPass)
{
this.sourceProvider = sourceProvider;
this.HighPass = highPass;
this.LowPass = lowPass;
CreateFilters();
}
public void AddBand(EqualizerBand eqBand)
{
var band = new EqualizerBandViewModel();
band.EqualizerBand = eqBand;
band.RemoveBandEvent += RemoveBandEvent;
band.PropertyChanged += EqualizerBandViewModel_PropertyChanged;
Items.Add(band);
}
public void LoadInto(IEqualizer equalizer)
{
equalizer.IsEnabled = IsEnabled;
foreach (EqualizerBand band in Bands)
{
if (band.IsFixedOffset)
{
EqualizerBand bandToUpdate = equalizer.Bands.FirstOrDefault(b => b.IsFixedOffset && (Math.Abs(b.Offset - band.Offset) < 0.01));
if (bandToUpdate != null)
{
bandToUpdate.Value = band.Value;
}
}
else
{
equalizer.AddBand(band.Offset, band.Value);
}
}
}
public EqualizerBandChangedEventArgs(int bandIndex, float value, EqualizerBand band)
{
BandIndex = bandIndex;
Value = value;
Band = band;
}
