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Goertzel Algorithm (DTMF) with Texas Instruments C5510 / C6713 DSK

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18 Jul 2003 (Updated )

Using the Goertzel Algorithm to identify which buttons have been pressed on a touch telephone.

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Description

Uses a microphone to listen to the sounds generated when buttons are pressed on a touch telephone and to display result on a PC. C code application for the Texas Instruments TMS320C5510 DSK.May also be applied to other devices in the C5000 family. The frequency response curves for each Goertzel frequency are provided in MATLAB and also in a Word document. This code may be used as a starting point for student projects.

Required Products Filter Design Toolbox
MATLAB release MATLAB 6.5 (R13)
Other requirements Texas Instruments TMS320C5510 DSK Microphone Touch tone telephone
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Comments and Ratings (7)
25 Jan 2007 navnith mantri

excellent

13 Sep 2006 min nim  
30 Jul 2006 Aliyu Mohammed  
03 Jul 2006 afshin medvari

thank you

16 Jan 2005 gokhaN polat  
28 Aug 2004 sajid bashir

perfect

13 Jan 2004 pencho brecheti  

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