Performance Analysis of Goertzel’s Algorithm based Dual-Tone Multifrequency (DTMF) Detection Schemes
MK Ravishankar, K.V.S. Hari · NOT FOUND REPOSITORY (Indian Institute of Science Bangalore) · 2004
A New efficient Dual –tone Multyfrequency detection scheme based on Goertzel’s algorithm is presented. Evaluating it with two existing detection schemes for DTMF signal corrupted by random noise and variation in frequency proves the merits of the proposed scheme.