| 摘要 |
An audio signal processing device (1) is arranged for providing a level controlled output signal (So) in response to a selected input signal (Si). The device comprises a selection unit (11) for selecting an input signal (Si) from a plurality of input signals, an amplification unit (12) for amplifying the selected input signal so as to produce the output signal (So), and a gain control unit (15) for controlling the gain of the amplification unit (12) in response to a level signal (S,) indicative of the audio signal level. The device is arranged for deriving the level signal (Si) from the output signal (S o) instead of the input signal (Si) of the amplifier (12). As a result, any signal distortions introduced by the amplifier (12) have no effect on the gain control and a greater precision is achieved.
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