Abstract: The invention relates to a digital signal-processing module (2) which can be connected to a host (1) for receiving at least one input transport stream of encoded digital data in a pre-determined compression format. The inventive module comprises means of decoding the digital signals contained in the input transport stream. The invention also relates to a system comprising the aforementioned module (2) and to a method of receiving and processing digital signals. The invention is particularly suitable for use in the field involving the reception and decoding of digital transport streams for the broadcasting of audio-visual programmes.