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Simple DTMF decoder in C
c
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C++ 96.4%
CMake 3.6%
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README.md

Simple DTMF Decoder in C

Simple stupid code implementing Goertzel algorithm

Build

Under Linux

cmake -S . -B build -G Ninja
ninja -C build
arecord | ./build/dtmf

Test

You can use your phone dial pad or online signal generator https://onlinetonegenerator.com/dtmf.html