AMPLIFIER CAPABLE OF CONTROLLING CUT-OFF FREQUENCY IN REAL TIME AND AMPLIFICATION METHOD FOR CONTROLLING CUT-OFF FREQUENCY IN REAL TIME

摘要

An amplifier and an amplification method are provided. In accordance with the present invention, a cut-off frequency of variable high-pass filter is dynamically adjusted in real time according to a low frequency level of an input audio signal to prevent a distortion of the audio signal and damage of loudspeaker.