JPS56110400A - Stereo sound field expansion device - Google Patents
Stereo sound field expansion deviceInfo
- Publication number
- JPS56110400A JPS56110400A JP1312180A JP1312180A JPS56110400A JP S56110400 A JPS56110400 A JP S56110400A JP 1312180 A JP1312180 A JP 1312180A JP 1312180 A JP1312180 A JP 1312180A JP S56110400 A JPS56110400 A JP S56110400A
- Authority
- JP
- Japan
- Prior art keywords
- adder
- signal
- deltat
- branched
- sound
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
Abstract
PURPOSE:To expand the normal effect of sound image and then obtain a sound field having a high ambience and large extension, by controlling the impulse of difference of time and amplitude between both ears with the stereo signal and then adding a reflected sound having a difference of the approximate to a large hall in terms of circuit and sound. CONSTITUTION:The stereo signals R and L applied to the input terminals 9 and 10 are branched each. One of the branched signals is applied to the delay circuits 11 and 12 to secure a delay of DELTAt seconds. The stereo signals R(-DELTAt) and L(-DELTAt) that are delayed by the clock pulse generator 13 are controlled to the proper leveles (m) and (n) each by the attenuators 14 and 15 to be applied to the left and right channel adders 17 and 16 each. The other signal of the branched signal R receives an in-phase addition through the sum signal adder 18 and the adder 16 and then a reverse-phase addition through the adder 17 respectively. Then the speaker 5 is driven by the output of the adder 18. At the same time, the output of the adders 16 and 17 drive the right and left speakers 6 and 7 each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1312180A JPS56110400A (en) | 1980-02-06 | 1980-02-06 | Stereo sound field expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1312180A JPS56110400A (en) | 1980-02-06 | 1980-02-06 | Stereo sound field expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56110400A true JPS56110400A (en) | 1981-09-01 |
Family
ID=11824317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1312180A Pending JPS56110400A (en) | 1980-02-06 | 1980-02-06 | Stereo sound field expansion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56110400A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866776A (en) * | 1983-11-16 | 1989-09-12 | Nissan Motor Company Limited | Audio speaker system for automotive vehicle |
| JPH05199598A (en) * | 1992-01-22 | 1993-08-06 | Matsushita Electric Ind Co Ltd | Sound reproducing system |
| US5572591A (en) * | 1993-03-09 | 1996-11-05 | Matsushita Electric Industrial Co., Ltd. | Sound field controller |
| JP2013538509A (en) * | 2010-08-12 | 2013-10-10 | ボーズ・コーポレーション | Active and passive directional acoustic radiation |
-
1980
- 1980-02-06 JP JP1312180A patent/JPS56110400A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866776A (en) * | 1983-11-16 | 1989-09-12 | Nissan Motor Company Limited | Audio speaker system for automotive vehicle |
| JPH05199598A (en) * | 1992-01-22 | 1993-08-06 | Matsushita Electric Ind Co Ltd | Sound reproducing system |
| US5572591A (en) * | 1993-03-09 | 1996-11-05 | Matsushita Electric Industrial Co., Ltd. | Sound field controller |
| JP2013538509A (en) * | 2010-08-12 | 2013-10-10 | ボーズ・コーポレーション | Active and passive directional acoustic radiation |
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