DTMF Filtering and Noise Simulator

Version 1.0.0.0 (34.7 KB) by Rajiv Singla
Dual Tone Multiple Frequency Noise and Filter SImulator
5.0
(3)
2K Downloads
Updated 1 Apr 2016

View License

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.

Cite As

Rajiv Singla (2024). DTMF Filtering and Noise Simulator (https://www.mathworks.com/matlabcentral/fileexchange/20552-dtmf-filtering-and-noise-simulator), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14
Compatible with any release
Platform Compatibility
Windows macOS Linux

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DTMF/

Version Published Release Notes
1.0.0.0

Added BSD license