/// <summary>
/// Event handler for when the audio engine is done calculating
/// FFT results.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void audioEngine_FftCalculated(object sender, FftEventArgs e)
{
try
{
spectrumVisualizer.updateBars(e.Result);
}
catch (NullReferenceException) { }
}
/*
* public Boolean repeatSong
* {
* get;
* set;
* }
*/
#endregion
/// <summary>
/// When an FFT is calculated we cascade the event to the calling class
/// through this even handler.
/// </summary>
/// <param name="sender"></param>
/// <param name="e">FFT event args - e.Result is a Complex array for the fft result</param>
private void asp_FftCalculated(object sender, FftEventArgs e)
{
EventHandler <FftEventArgs> handler = FftCalculated;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// This constructor checks if the fftLength is a power of two,
/// and instantiates the buffers.
/// </summary>
/// <param name="source"></param>
/// <param name="fftLength"></param>
public AggregateSampleProvider(ISampleProvider source, int fftLength = 1024)
{
channels = source.WaveFormat.Channels;
if (!IsPowerOfTwo(fftLength))
{
throw new ArgumentException("FFT Length must be a power of two");
}
this.m = (int)Math.Log(fftLength, 2.0);
this.fftLength = fftLength;
this.fftBuffer = new Complex[fftLength];
this.fftArgs = new FftEventArgs(fftBuffer);
this.source = source;
}
