How to use spectrum analyzer object to show a signal waveform ?

hsb = dsp.SpectrumAnalyzer;

Answer 1

[Honglei Chen]

Its purpose is to show signal's spectrum

    fs = 1000;
    x = sin(2*pi*200*(0:1999)'/fs);
    hsb = dsp.SpectrumAnalyzer('SampleRate', fs);
    step(hsb,x)

If you want to see the time domain waveform, you should use dsp.TimeScope instead

    fs = 1000;
    x = sin(2*pi*5*(0:1999)'/fs);
    hts = dsp.TimeScope('SampleRate',fs,'TimeSpan',2);
    step(hts,x)

HTH

[Abhishek Bansal]

Thank you