Huazhong University of Science and Technology
Visual Sound Instrument (Version 3.2)
Spectrum Menu
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a). Power Spectrum
Show the power spectrum of the signal. Below is a power spectrum of th sine signal in log mode.
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b).Amplitude Spectrum
Show the Amplitude spectrum of the signal. Below is a amplitude spectrum of th square signal in linear mode.
c).Waveform and Amplitude Spectrum
Show the waveform and the Amplitude spectrum of the signal together.
d).Spectrum Parameters
Set the display of the spectrum. As shown below.
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e) 1/1 Octave Spectrum
Show the 1/1 octave spectrum of the signal. It is usually used in sound signal analyze.
e) 1/3 Octave Spectrum
Show the 1/3 octave spectrum of the signal. It is usually used in sound signal analyze.
f) Octave Spectrum Parameters
Set the parameters of the octave analyze. As shown below.
Weighting
This is used to set frequency weighting network. Linear A, B and C weighting curves can be used in analyze.
Window
This is used to set spectrum window type. Rectangle, Hanning, Hamming and Flat window are supplied.
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g) Spectrum Array
This function do spectrum array analyze of the signal.

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[Return]
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2004.1.10