Semiconductor components, integrated circuits, semiconductor chips, semiconductor chip sets, circuit board assemblies, electronic computer components, electronic components, all for audio and entertainment devices and systems; control software, interface software and communications software, all for control and operation of audio and entertainment devices and systems; semiconductor component layouts in electronic form; computers, computer peripherals, electrical and electronic apparatus and instruments, computer networking and computer configuration systems, all being for use with telecommunications apparatus, instruments and equipment; computer software for use in satellite communications; computer software for improving voice signal quality and the intelligibility of speech content used in voice interface systems, command and control systems, radio intercom systems; computer programs for encoding and decoding audio signals; electrical and electronic apparatus for processing, encoding and decoding signals