| 摘要 |
A method of filtering an information signal (x(t)), the method comprising modifying frequency domain components (X(k,n)) of the information signal according to a desired filter response (F(k,n)); wherein the step of modifying frequency domain components further comprises modifying ( 105 ) frequency domain components of a first frame of said information signal according to a first actual filter response (F'(k,n)), the first actual filter response being a function (Phi) of the desired filter response and information ( 108 ) related to a previous frame of the information signal.
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