APPARATUS AND METHOD FOR PROCESSING AN ENCODED SIGNAL AND ENCODER AND METHOD FOR GENERATING AN ENCODED SIGNAL

摘要

An Apparatus for processing an encoded signal (110), the encoded signal comprising an encoded audio signal having information on a pitch delay or a pitch gain, and a bass post-filter control parameter (101), comprises: an audio signal decoder (110) for decoding the encoded audio signal using the information on the pitch delay or the pitch gain to obtain a decoded audio signal (103); a controllable bass post-filter (112) for filtering the decoded audio signal (103) to obtain a processed signal (113), wherein the controllable bass post-filter (112) has the variable bass post-filter characteristic controllable by the bass post-filter control parameter (101); and a controller (114) for setting the variable bass post-filter characteristic in accordance with the bass post-filter control parameter (101) included in the encoded signal (102).