Spectrum Analysis using FFT and Hanning Window

I need to conduct spectrum analysis on a pre-recorded audio file (.wav), using FFT and a Hanning window (size: 1024).

I am using the MIRtoolbox, DSP System Toolbox and Signal Processing Toolbox.

I've tried to do this using the below code, but keep getting errors.

MATLAB code
>> a1 = miraudio('Canjo.wav','Extract',8,15);
Computing miraudio related to Canjo.wav...
Computing mirsum related to Canjo.wav...
Elapsed time is 0.078341 seconds.
>> L = 1024;
>> w = hann(L);
>> mirspectrum(a1,'Window',w)

Here are the error messages.

MATLAB code

Operands to the || and && operators must be convertible to logical scalar values.

Error in miroptions (line 284)
                        if length(varg) > i && ...

Error in mirfunction (line 40)
[orig during after] = miroptions(method,orig,specif,varg);

Error in mirspectrum (line 294)
varargout = mirfunction(@mirspectrum,orig,varargin,nargout,specif,@init,@main);

Any help would be very appreciated, thanks!

Answer 1

[Santhana Raj]

Check the Syntax of the miraudio command.

As far as I can see, when you use 'Extract' option, you have to provide t1,t2,u,f. Out of which f is optional. I see that you have not mentioned u (unit of t1 & t2), which can take the value of 's' or 'sp'.