[mirtoolbox] Re: Mirspectrum

On Apr 20, 2011, at 10:40 AM, ivonne julietta wrote:

> Thank you Hendrik. You help me to understanding the two different frame 
> length.
> If i write the command as you give me:
> a=miraudio('Laksin')
> f=mirspectrum(a, 'Length', 8192, 'Frame', 0.04)
> it produce a figure with time axis and frequency axis. But, actually i need a 
> figure with frequency axis and amplitude axis (dB). How can i produce it?
> And also how can i get the power amplitude spectrum values?not as a figure 
> but as a tuple of data (frequency and amplitude),for example when the 
> frequency 50hz, the amplitude 20dB.

Hi,

you can get to the data of any of these mirtoolbox types with

data = get(a, 'Data')

I believe there is an option for mirspectrum that lets you access the dB. 
Please check the manual.

-hendrik

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