Title:
【発明の名称】バス強調装置とその方法
Document Type and Number:
Japanese Patent JP3478401
Kind Code:
B2
Abstract:
An apparatus for conveying to a listener a pseudo low frequency psycho-acoustic sensation (Pseudo-LFPS) of a sound signal, including: frequency unit capable of deriving from the sound signal high frequency signal and low frequency signal (LF signal) that extends over a low frequency range of interest. Harmonics generator coupled to the frequency generator and being capable of generating, for each fundamental frequency within the low frequency range of interest, a residue harmonic signal having a sequence of harmonics. The sequence of harmonics, generated with respect to each fundamental frequency contains a first group of harmonics that includes at least three consecutive harmonics from among a primary set of harmonics of the fundamental frequency. Loudness generator coupled to the harmonics generator and being capable of bringing the loudness of the residue harmonic signal to match the loudness of the low frequency signal. Summation unit capable of summing the residue harmonic signal and the high frequency signal so as to obtain psychoacoustic alternative signal.
Inventors:
Shiyayoua, Meir
Grotte, daniel
Grotte, daniel
Application Number:
JP54255998A
Publication Date:
December 15, 2003
Filing Date:
April 03, 1998
Export Citation:
Assignee:
KS Waves Limited
International Classes:
H04R3/04; G10L19/00; G10L21/007; G10L25/00; H04R3/00; (IPC1-7): H04R3/04; G10L11/00; G10L19/00
Domestic Patent References:
| JP5328481A | ||||
| JP3270400A | ||||
| JP6178397A |
Other References:
【文献】米国特許5355416(US,A)
Attorney, Agent or Firm:
Heikichi Odashima
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