DTMF Filtering and Noise Simulator
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Unlike all other posted DTMF programs, my application is specifically designed to simulate the working of a real DSP processor especially for beginners.
That would mean that digital oscillator was used to create sine and cosine functions and signal is passed through 8 filters. The signal is analyzed frame by frame and mostly likely digit is extracted based on repeating pattern just like a real DSP processor. Parameters like noise generation, signal duration, frame length are all adjustable to check at what noise levels the output will become irrelevant.
Please note that this is a single digit DTMF only. Also use help function to see all the equations used to filter the signal.
Free download from Shareware Connection - Unlike all other posted DTMF programs, my application is specifically designed to simulate the working of a real DSP processor especially for beginners.
Version: 1.0 | Size: 41 KB | Platform: Matlab, Scripts
Released Date: 14-02-2013 | Rating: 0 | Title: DTMF Filtering and Noise Simulator
Author Url: http://www.mathworks.com
Program Info Url: http://www.mathworks.com
Download Url: http://www.mathworks.com/matlabcentral/fx_files/20552/1/DTMF.zip
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