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Continuous Microphone Spectrum

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09 Mar 2007 (Updated )

Continuously show the updated frequency spectrum of the microphone signal

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File Information
Description

This short script continuously reads sound data from the windows soundcard (microphone of line-in) and displays the updated frequency spectrum. It is mostly, a data acquisition example using the built-in Windows sound card.

Required Products Data Acquisition Toolbox
MATLAB release MATLAB 7.2 (R2006a)
Other requirements Tested on WinXP, MATLAB v7.1.0.246(R14) with Data Acq. Toolbox v2.7
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Comments and Ratings (8)
02 Nov 2010 Tom?

Hi, does it work under linux/mac os x?

13 Mar 2008 shrikant modh

HI
Can u tell me how to find the frequency spectrun of the recorded speech signal.

20 Sep 2007 karthik raj

good

11 Sep 2007 Dariya Mykh  
12 Apr 2007 Albert Lu

Enter
drawnow;
After the plotting command. This allows for continuous update.

12 Apr 2007 Jim Donohue

Albert Lu, try setting duration = .2 in the script.

11 Apr 2007 Albert Lu

It would be nice if the plot is updated constantly

30 Mar 2007 kittisak wadsuntud  

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