| 摘要 |
<p>A digital filter (10) having an impulse response (A) that includes a low latency and long filter length F' characteristics, said digital filter comprising a plurality of component filters (F 1 , F 2 , F 3 ,...F N ) each having an impulse response (a 1 , a 2 ...a N ) including a latency and filter length, each of said component filters having an input connected to an input of said digital filter, and an output connected to a summing means for combining, by addition, each of said outputs to form an output of said digital filter such that the impulse response (A) of said digital filter is the sum of component impulse responses (a 1 , a 2 ...a N ) and the low latency is equal to the shortest one of the component latencies, wherein at least a first one of said component filters (F 1 ) is specifically configured to provide said low latency, and at least another one of said component filters (F 3 , F N ) is specifically configured to provide a long filter length.</p> |
