JPS5574292A - Speaker system of constant directionality - Google Patents
Speaker system of constant directionalityInfo
- Publication number
- JPS5574292A JPS5574292A JP14722078A JP14722078A JPS5574292A JP S5574292 A JPS5574292 A JP S5574292A JP 14722078 A JP14722078 A JP 14722078A JP 14722078 A JP14722078 A JP 14722078A JP S5574292 A JPS5574292 A JP S5574292A
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- high band
- directionality
- speakers
- filter
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
PURPOSE:To extened the range in which excellent stereophonic feeling of is obtained, by giving the performance of directionality in which the output sound pressure of speakers remote from the listening position is higher and that from near is lower. CONSTITUTION:The speakers SP1-SP3 are located on a straight line with unequal distance, and this distance is taken ad d1>d2. Further, the filter circuit is connected to the speaker, and the degree in decrease or increase of high band to the speaker output is set by changing the filter constant. That is, the input voltage of each speaker is changed with the high band increase or decrease filter and the appearent size of the sound source is taken smaller at high band, to obtain the speaker system having a given directionality over wide range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14722078A JPS6056038B2 (en) | 1978-11-30 | 1978-11-30 | Constant directional speaker system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14722078A JPS6056038B2 (en) | 1978-11-30 | 1978-11-30 | Constant directional speaker system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5574292A true JPS5574292A (en) | 1980-06-04 |
| JPS6056038B2 JPS6056038B2 (en) | 1985-12-07 |
Family
ID=15425278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14722078A Expired JPS6056038B2 (en) | 1978-11-30 | 1978-11-30 | Constant directional speaker system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056038B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722306A (en) * | 1980-07-11 | 1982-02-05 | Hitachi Ltd | Gas insulated switching device |
| US4475233A (en) * | 1981-10-08 | 1984-10-02 | Watkins William H | Resistively damped loudspeaker system |
| US4597100A (en) * | 1984-05-15 | 1986-06-24 | Rg Dynamics, Inc. | Ultra high resolution loudspeaker system |
-
1978
- 1978-11-30 JP JP14722078A patent/JPS6056038B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722306A (en) * | 1980-07-11 | 1982-02-05 | Hitachi Ltd | Gas insulated switching device |
| US4475233A (en) * | 1981-10-08 | 1984-10-02 | Watkins William H | Resistively damped loudspeaker system |
| US4597100A (en) * | 1984-05-15 | 1986-06-24 | Rg Dynamics, Inc. | Ultra high resolution loudspeaker system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6056038B2 (en) | 1985-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1487847A (en) | Microphone units | |
| GB1383473A (en) | Hearing aid | |
| KR850007551A (en) | Hearing aid | |
| JPS5574292A (en) | Speaker system of constant directionality | |
| JPS5233517A (en) | Multi-way loudspeaker system | |
| JPS5689194A (en) | Secondary acoustic pressure inclination unidirectional microphone system | |
| GB985566A (en) | Improvements in dynamic headphone | |
| JPS57168596A (en) | Directional microphone | |
| JPS5546646A (en) | Speaker system | |
| JPS5753198A (en) | Ring-shaped speaker | |
| US4361734A (en) | Hearing aid | |
| JPS5574293A (en) | Speaker system of constant directionality | |
| GB1517938A (en) | Headphone system | |
| GB1499976A (en) | Hearing aids | |
| JPS53116102A (en) | Acoustic reproducer | |
| JPS5238213A (en) | Stereo microphone | |
| JPS5413714A (en) | Multi-frequency signal reception system | |
| JPS52102020A (en) | Speaker system | |
| JPS5744395A (en) | Stereophonic zoom microphone | |
| JPS57104312A (en) | Control device for sound volume of acoustic device | |
| JPS56104597A (en) | Variably directional microphone | |
| JPS5427420A (en) | Multiway speaker device | |
| JPS5635596A (en) | Variable directional microphone | |
| US2131669A (en) | Sound reproducing apparatus | |
| JPS57133797A (en) | Speaker system |