Hello all,
how to use Goertzel function to detect DTMF signal?
As source I have PCM data 48000Hz splitted into 40ms slices.
How to detect the key 1 (two tones 697Hz and 1209Hz) ?
Hello all,
how to use Goertzel function to detect DTMF signal?
As source I have PCM data 48000Hz splitted into 40ms slices.
How to detect the key 1 (two tones 697Hz and 1209Hz) ?