help in pushbutton GUI

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mira
mira 2014-7-20
评论： Image Analyst 2014-7-21
Hi,
I have three different tones need to be click using pushbutton in GUI. I already create these tones in m file. So, how I want to called these tones in GUI. Anyone can help me?

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回答（1 个）

Image Analyst
Image Analyst 2014-7-20
In the callback of each function, use sound() to play the sound you want. First run the m-file that creates the sound variables - it should return them as output variables or else write them to known filenames. You then need to get the sound you want to play in scope, so see the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F
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mira
mira 2014-7-21
Hi, Image Analyst,
Thank you for the information. Actually I have three different tones combines in one .wav file. Which means, 3 different tones playing together at a time. And one of these tones need to be clicked and I'm using pushbutton to click the tones. So I will called the .wav file,but how I want to make the matlab understand that I only want to click on one tone only and if I click on two others tones it will display wrong. Hope you understand my question. Can the matlab do that?
I'm new with matlab GUI.
Thank you.
Image Analyst
Image Analyst 2014-7-21
You need to extract them. If they're simple sine waves, use a notch filter in Fourier space with the fft() function and ifft() function.
If they're more complicated sounds that are blended, then use Independent Components Analysis to solve the Blind Source Separation problem (the cocktail party problem).
http://research.ics.aalto.fi/ica/icademo/
http://cnl.salk.edu/~tony/ica.html

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