A number of spatially separate transducers produces a number of electric speech signals corresp. the sound acting on them. A reusonal network has a number of layers each comprising a number of reusonal elements, and there being an input layer and an output layer. A first communication device transmits the electric speech signal from a first of the transducers to each element of a first of reuson elements in the input layer. A second communication device transmits the electric speech signal from a second of the transducers to each element of a second set of reuson elements. Each communication device may convert the analog speech input to digital and may include a shift register for providing separated outputs. ADVANTAGE - Improved speech clarity and comprehension.
Noise reduction equipment in speech signal processing system - couples microphones by hierarchical neuronal networks to digital processor