CA2048686A1 - Audio signal reproducing apparatus - Google Patents
Audio signal reproducing apparatusInfo
- Publication number
- CA2048686A1 CA2048686A1 CA2048686A CA2048686A CA2048686A1 CA 2048686 A1 CA2048686 A1 CA 2048686A1 CA 2048686 A CA2048686 A CA 2048686A CA 2048686 A CA2048686 A CA 2048686A CA 2048686 A1 CA2048686 A1 CA 2048686A1
- Authority
- CA
- Canada
- Prior art keywords
- transfer characteristics
- information
- listener
- head
- audio signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 title abstract 7
- 238000001514 detection method Methods 0.000 abstract 3
- 210000005069 ears Anatomy 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
- H04S1/005—For headphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Stereophonic Arrangements (AREA)
Abstract
In the audio signal reproducing apparatus, information on the transfer characteristics representative of the transfer characteristics from virtual sound sources to both ears of a listener in at least a first quadrant of the rotational angular position of the head M of the listener is stored in storing means 22. The transfer characteristics in rotational angular position of the head M represented by detection outputs from detecting means 5L, 5R and 13 for detecting the rotational angle position depending upon the movement of the head of the listener are formed based upon the transfer characteristics information of at least the first quadrant stored in the storing means and left and right channel audio signals are processed by audio signal processing means 23 for achieving a proper binaural reproduction relative to the virtual sound sources.
Also in the audio signal processing apparatus of the present invention, information on the transfer characteristics from virtual sound sources to both ears of a listener for each given rotational angle depending upon the movement of the head M of the listener is stored in storing means 62. The rotational angular position of the head of the listener is detected by detecting means 45L, 45R and 53 at a solution higher than that of the information of the transfer characteristics stored in said storing means. The information on at least two transfer characteristics in the vicinity of the rotational angular position represented by the detection outputs from detecting means is read from the storing means. The information on the transfer characteristics in the rotational angular position of the head represented by the detection output is interpolation operated by interpolation operating means 61. Based upon the information on the transfer characteristics determined by the interpolation operation means, left and right channel audio signals are processed by audio signal processing means 63 for achieving a proper binaural reproduction relative to the virtual sound sources.
Also in the audio signal processing apparatus of the present invention, information on the transfer characteristics from virtual sound sources to both ears of a listener for each given rotational angle depending upon the movement of the head M of the listener is stored in storing means 62. The rotational angular position of the head of the listener is detected by detecting means 45L, 45R and 53 at a solution higher than that of the information of the transfer characteristics stored in said storing means. The information on at least two transfer characteristics in the vicinity of the rotational angular position represented by the detection outputs from detecting means is read from the storing means. The information on the transfer characteristics in the rotational angular position of the head represented by the detection output is interpolation operated by interpolation operating means 61. Based upon the information on the transfer characteristics determined by the interpolation operation means, left and right channel audio signals are processed by audio signal processing means 63 for achieving a proper binaural reproduction relative to the virtual sound sources.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPP2-008520 | 1990-01-19 | ||
JP2008514A JP2751512B2 (en) | 1990-01-19 | 1990-01-19 | Sound signal reproduction device |
JP2008520A JP2893780B2 (en) | 1990-01-19 | 1990-01-19 | Sound signal reproduction device |
JPP2-008514 | 1990-01-19 | ||
PCT/JP1991/000057 WO1991011080A1 (en) | 1990-01-19 | 1991-01-18 | Apparatus for reproducing acoustic signals |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2048686A1 true CA2048686A1 (en) | 1991-07-20 |
CA2048686C CA2048686C (en) | 2001-01-02 |
Family
ID=26343043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002048686A Expired - Lifetime CA2048686C (en) | 1990-01-19 | 1991-01-18 | Audio signal reproducing apparatus |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP0464217B1 (en) |
KR (1) | KR920702175A (en) |
CA (1) | CA2048686C (en) |
DE (2) | DE69132430T2 (en) |
WO (1) | WO1991011080A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0795698A (en) * | 1993-09-21 | 1995-04-07 | Sony Corp | Audio reproducing device |
EP0744881B1 (en) * | 1995-05-22 | 2004-07-14 | Victor Company Of Japan, Ltd. | Headphone reproducing apparatus |
JP3577798B2 (en) * | 1995-08-31 | 2004-10-13 | ソニー株式会社 | Headphone equipment |
FR2744871B1 (en) * | 1996-02-13 | 1998-03-06 | Sextant Avionique | SOUND SPATIALIZATION SYSTEM, AND PERSONALIZATION METHOD FOR IMPLEMENTING SAME |
WO2007112756A2 (en) * | 2006-04-04 | 2007-10-11 | Aalborg Universitet | System and method tracking the position of a listener and transmitting binaural audio data to the listener |
EP2288178B1 (en) * | 2009-08-17 | 2012-06-06 | Nxp B.V. | A device for and a method of processing audio data |
US9706304B1 (en) * | 2016-03-29 | 2017-07-11 | Lenovo (Singapore) Pte. Ltd. | Systems and methods to control audio output for a particular ear of a user |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5419242B2 (en) | 1973-06-22 | 1979-07-13 | ||
JPS5165901A (en) * | 1974-12-05 | 1976-06-08 | Sony Corp | |
US4076677A (en) | 1976-06-23 | 1978-02-28 | Desoto, Inc. | Aqueous copolymer dispersions and method of producing the same |
JPS54109401A (en) * | 1978-02-16 | 1979-08-28 | Victor Co Of Japan Ltd | Signal converter |
JPS58116900A (en) * | 1982-11-15 | 1983-07-12 | Sony Corp | Stereophonic reproducing device |
US4893342A (en) * | 1987-10-15 | 1990-01-09 | Cooper Duane H | Head diffraction compensated stereo system |
JP2671329B2 (en) * | 1987-11-05 | 1997-10-29 | ソニー株式会社 | Audio player |
JP3155592B2 (en) * | 1991-12-11 | 2001-04-09 | 武藤工業株式会社 | Method and apparatus for correcting progressive dimensions |
-
1991
- 1991-01-18 EP EP91902738A patent/EP0464217B1/en not_active Expired - Lifetime
- 1991-01-18 DE DE69132430T patent/DE69132430T2/en not_active Expired - Lifetime
- 1991-01-18 DE DE69120150T patent/DE69120150T2/en not_active Expired - Lifetime
- 1991-01-18 CA CA002048686A patent/CA2048686C/en not_active Expired - Lifetime
- 1991-01-18 WO PCT/JP1991/000057 patent/WO1991011080A1/en active IP Right Grant
- 1991-01-18 EP EP95104929A patent/EP0664660B1/en not_active Expired - Lifetime
- 1991-01-18 KR KR1019910701121A patent/KR920702175A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2048686C (en) | 2001-01-02 |
DE69120150T2 (en) | 1996-12-12 |
EP0464217A1 (en) | 1992-01-08 |
DE69132430D1 (en) | 2000-11-02 |
WO1991011080A1 (en) | 1991-07-25 |
EP0664660B1 (en) | 2000-09-27 |
DE69132430T2 (en) | 2001-04-05 |
EP0464217A4 (en) | 1992-06-24 |
KR920702175A (en) | 1992-08-12 |
EP0464217B1 (en) | 1996-06-12 |
DE69120150D1 (en) | 1996-07-18 |
EP0664660A3 (en) | 1995-08-09 |
EP0664660A2 (en) | 1995-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |