Abstract

A surround audio signal reproducing apparatus for reproducing a multi-channel audio signal to generate a surround sound effect is provided. The apparatus contains a surround decoder, a sub-woofer mixing section, a first rear amplifier, and a speaker system having a sub-woofer and a first rear speaker. The surround decoder inputs and decodes the multi-channel audio signal to produce a first rear signal and a sub-woofer signal. The sub-woofer mixing section inputs the sub-woofer signal and the first rear signal and produces a mixed first rear signal. The first rear amplifier inputs and amplifies the mixed first rear signal to produce an amplified first rear signal. Then, the speaker system extracts the sub-woofer signal from the amplified first rear signal and reproduces the sub-woofer signal via the sub-woofer. Furthermore, the speaker system extracts the first rear signal from the amplified first rear signal and reproduces the first rear signal via the first rear speaker. Since the surround audio signal reproducing apparatus mixes the sub-woofer signal with the first rear signal before they are amplified, the apparatus is capable of reproducing high quality bass sound and surround sound effect at a low cost.

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