Abstract: A system is provided comprising a processor part of a family of different types configured for executing a common instruction set, the processor types differing in terms of a number of multiplication units. A method for using the processor is also presented including: a. receiving a specific instruction defining a multiplication type to be applied to a first input data element and a second input data element; b. deriving a number of multiplication cycles for executing the specific instruction at least in part by processing: (i) cardinality information corresponding to the multiplication units for processor, and (ii) the multiplication type defined by the specific instruction; c. executing the specific instruction by repeatedly using the multiplication units of the processor for a number of cycles corresponding to the derived number of multiplication cycles. A method for selecting the specific processor amongst the family of processors based on one or more criteria is also presented.

Abstract: A method and apparatus for reducing echo in a communication system are provided. A first signal including a voice component associated to a speaker is received. The first signal is processed to derive a harmonic feature of the voice component. A second signal including an echo component correlated to the first signal is also received. The second signal is processed at least in part on the basis of the harmonic feature of the voice component to remove at least in part the echo component such as to derive an echo reduced signal. The echo reduced signal is then released. In specific implementations, the harmonic feature of the voice component is an estimate of the pitch associated to the voice component.