| 摘要 |
PURPOSE: To emphasize the apparent low sound reproduction in a compact speaker system without introducing any distortion to a reproduced sound. CONSTITUTION: This circuit is provided with inputting means 10 and 16 which receive an input voice signal with an extremely wide frequency range, separating means 12 and 18 connected with the inputting means which separates signal components in the low frequency band of the voice signal from the wide frequency range, a frequency doubling means 14 which doubles the frequency of the signal components in the low frequency band, and mixing means 24 and 30 which mix the frequency doubled signal components with the input voice signal. Thus, the signal components in the low frequency band are allowed to appear at a frequency position higher by one octave. |
