Neural network based universal tone detector

This paper presents a new algorithm for universal tone detection, which uses two outputs of the Goertzel filter as inputs to a neural network. This algorithm is referred to as the neural tone detector (NTD). Detailed analysis and comparison with existing solutions in terms of performance and computational complexity is given. The NTD was found to be a reliable high performance solution for the tone detector under noisy conditions - whereas computational complexity and memory requirements are low.