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Real-time DAQ and sound card visualization

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Real-time DAQ and sound card visualization

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Read analog signal coming from a daq or a sound card. Display the data in real-time or at the end.

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Description

 Matlab code to read analog signal coming from a daq or from your sound card. This code allows to display the data in real-time or when the acquisition finished.
The real-time visualization method is better for monitoring.
The non real-time visualization method is better for accurate acquisitions.
It is an easy way to monitor or record your data coming from a daq or your sound card. I tried to write the simpler and the more general code possible. There is only one script file with a lot of comments to understand each step.
You can change many parameters like the duration, the number of channels or the type of daq easily.
The variable 'real_time_vis' can be changed to have a real time visualization of your data or not.

Nizar Ouarti 11-2009, France

Required Products Data Acquisition Toolbox
MATLAB release MATLAB 7.1.0 (R14SP3)
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Comments and Ratings (2)
24 Feb 2012 medi widya sujatmiko

tell me how i cam use this code,.. it didn't work , please..

01 Feb 2012 Sen

% Error occurs using winsound:

??? Function 'isrunning' is not defined for values of class 'analoginput'.

Error in ==> Soundcard at 41
while isrunning(ai) % while ai is running

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