LOW FREQUENCY BAND ACOUSTIC REGENERATING APPARATUS BY DOPPLER EFFECT

摘要

The present disclosure relates to a Doppler low sound reproducing apparatus for generating low sound by intentionally generating a Doppler phenomenon by outputting a digital signal processed low sound signal to a small loud speaker. The apparatus of the present invention includes an A / D converter for converting an analog sound signal into a digital signal for signal processing, a frequency converter for converting the converted low sound digital signal into a high frequency band, and a reduction in the reproduction sound caused by the Doppler phenomenon. Compensators for compensating sound before reproducing, a divider for distributing a predetermined number of digital signals, a D / A converter for converting the distributed digital signal into an analog signal, and a speaker for reproducing sound. Accordingly, the present invention provides an effect of effectively reproducing bass sounds using only small speakers for high sound levels, without using existing large speakers and enclosure boxes.