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 |
---|---|
GetFreqDBArray | Obtain the amplitude of a set of frequencies(FFT result set). |
GetfrequencyDB | Get the amplitude of a given frequency. |
None.