This was the final project for my DSP class, where a matlab scripts needed to be written to decode\nDual Tone Multi-frequency signals. Two different methods for decoding were explored: filter banks, ...

The objective of the project is to decode dual tone codes into digits which are later interpreted by microcontroller. This device is very useful for decoding Dual Tone Multi Frequency (DTMF) generated ...

Winston-Salem, NC&#8212CML Microcircuits' CMX867A, a V.22 multi-standard modem IC for telephone-based information systems, includes an enhanced DTMF decoder, thus affording a more compact design and ...

Abstract: This paper presents the development of a DTMFbased home automation system using GSM technology. The proposed system leverages Dual-Tone Multi-Frequency (DTMF) signaling and Global System for ...

For a hobby that’s ostensibly all about reaching out to touch someone, ham radio can often be a lonely activity. Lots of hams build and experiment with radio gear much more than they’re actually on ...

Decoding and synthesizing DTMF signals. Processes a given signal and returns a list of decoded keys and the frequencies found in the signal and generates a DTMF signal from a given phone number.