| 摘要 |
PROBLEM TO BE SOLVED: To realize a reproduction with fidelity to a sound source by outputting both sounds of a very high range outside of audible frequency bands and sounds of a conventional speaker system. SOLUTION: An audio signal of the very high range out of the audible frequency bands, passed through an extremely low capacity capacitor as a high-pass filter is outputted by using a micro-speaker as a speaker unit for very high range reproduction, an output resulting from resonating and amplifying said output by using a resonant tube and the audio output of the conventional speaker system are outputted together, and a lacked component in the audio output of the conventional speaker system is corrected for reproduction with fidelity to the sound source. COPYRIGHT: (C)2005,JPO&NCIPI |
