Title:
AUDIO SIGNAL PROCESSING DEVICE, AUDIO PLAYBACK DEVICE, AND ELECTRONIC MUSICAL INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2017/138596
Kind Code:
A1
Abstract:
Provided is an audio signal processing device that is provided to a device having a speaker and that generates an audio signal representing audio emitted from a virtual sound source that is virtually disposed in a different position than is the speaker, wherein the audio signal processing device is provided with: an acquisition means for acquiring an original signal representing audio emitted from a sounding body of a prescribed device; a plurality of bandpass filters provided in correspondence to a plurality of natural frequencies of the virtual sound source, each of the bandpass filters extracting a frequency component of the original signal; a plurality of delay means provided in correspondence to the plurality of natural frequencies of the virtual sound source, the delay means delaying the extracted frequency components in accordance with the vibration state of the virtual sound source and the distance between the position of the speaker and the position of the virtual sound source; and an addition means for adding the frequency components respectively outputted from the plurality of delay means.
Inventors:
ISOZAKI YOSHIMASA (JP)
Application Number:
PCT/JP2017/004682
Publication Date:
August 17, 2017
Filing Date:
February 09, 2017
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
G10H1/00; H04R3/00
Foreign References:
| JP2007183349A | 2007-07-19 | |||
| JPH08190375A | 1996-07-23 | |||
| JP2003316358A | 2003-11-07 | |||
| JP2007333813A | 2007-12-27 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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