Generates a peak file for an audio file. This method returns an IObservable object for use with Reactive Extensions.
Note: BASS.NET should be initialized already before calling this method. This uses a decode stream.

C# | Visual Basic |
protected IObservable<PeakFileProgressData> GeneratePeakFileAsync( string audioFilePath, string peakFilePath, int threadNumber )
Protected Function GeneratePeakFileAsync ( _ audioFilePath As String, _ peakFilePath As String, _ threadNumber As Integer _ ) As IObservable(Of PeakFileProgressData)

Observable object with PeakFileProgressData