AM-Rauschreduktion

A receiver for receiving an amplitude modulated signal with upper and lower sidebands comprises an independent sideband receiver (6) for providing demodulated upper (USB) and lower (LSB) sideband audio signals, a quality detector (9) for providing upper and lower quality signals representative of undesired noise in the demodulated upper and lower sideband audio signals respectively and a selector (11,19,61) responsive to the quality signals for processing the upper and lower sideband audio signals to provide an audio output signal with reduced noise. Examples are described in which a plurality of band-pass filters are provided for decomposing the upper and lower sidebands into several contiguous pass bands, and in which a stereo decoder is used for decoding a stereo signal and detecting a stereo pilot signal.