Title:
AUDIO SIGNAL PROCESSING CIRCUIT, ON-VEHICLE AUDIO SYSTEM USING THE SAME, AUDIO COMPONENT APPARATUS, ELECTRONIC APPARATUS AND AUDIO SIGNAL PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2018110362
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve cost reduction and/or low power consumption for an audio system which can reproduce a high-resolution sound source.SOLUTION: An audio signal processing circuit 100 includes a frequency band division section 110 and a main digital signal processing section 120. The frequency band division section 110 divides an input audio signal Swith an input sampling frequency fsinto a first signal Sincluding a first frequency band FBand a second signal Sincluding a second frequency band FBhigher than the first frequency band FB. The first signal Sis down-sampled to an internal sampling frequency fslower than the input sampling frequency fs. The main digital signal processing unit 120 processes the first signal S.SELECTED DRAWING: Figure 2
Inventors:
SAKAI MITSUTERU
Application Number:
JP2017000945A
Publication Date:
July 12, 2018
Filing Date:
January 06, 2017
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H04R3/00
Domestic Patent References:
| JP2007041298A | 2007-02-15 | |||
| JP2010136343A | 2010-06-17 | |||
| JP2004247893A | 2004-09-02 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki
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