TAPIEx ActiveX Control v3.6


IWaveAnalysis interface implements accurate real FFT on audio wave-form. With help of it , it can detect the custom tone (such as busy, ring-back or.... of different countries) on phone line.

Properties Description
FFT_Window Sets/returns the FFT_Window type.
AmplitudeThreshold Sets/returns the amplitude threshold in dB. (default value:-25.0dB)
SilenceThreshold Sets/retrurns the silcense threshold in percent. (default value:4%)


Methods Description

Obtain the amplitude of a set of frequencies(FFT result set).


Get the amplitude of a given frequency.


See Also