JPS57129099A - Acoustic image expanding device - Google Patents
Acoustic image expanding deviceInfo
- Publication number
- JPS57129099A JPS57129099A JP56014136A JP1413681A JPS57129099A JP S57129099 A JPS57129099 A JP S57129099A JP 56014136 A JP56014136 A JP 56014136A JP 1413681 A JP1413681 A JP 1413681A JP S57129099 A JPS57129099 A JP S57129099A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- phase
- circuit
- expansion
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Networks Using Active Elements (AREA)
Abstract
PURPOSE:To improve a sense of expansion of sound, by inserting a phase-shifting circuit having a prescribed transfer function, into one terminal of a circuit for supplying a sound signal to the first and second loudspeakers. CONSTITUTION:A sound signal inputted to a terminal 1 is sounded from the first loudspeaker 6 through a phase-shifting circuit 4 and an amplifying circuit 5. A signal inputted to a terminal 10 or a signal inputted to the terminal 1 is sounded from the second loudspeaker 9 through a changeover switch 7 and an amplifier circuit 8. In this case, when a transfer function G(s) of the phase-shifting circuit 4 is prescribed as an expansion (provided that S=jomega, and omega and omega0 denote angular frequency and resonance angular frequency, respectively), it is possible to obtain an expansion of a natural sound which does not generate a sense of 180 deg. out-of-phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56014136A JPS57129099A (en) | 1981-02-02 | 1981-02-02 | Acoustic image expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56014136A JPS57129099A (en) | 1981-02-02 | 1981-02-02 | Acoustic image expanding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57129099A true JPS57129099A (en) | 1982-08-10 |
| JPH0119320B2 JPH0119320B2 (en) | 1989-04-11 |
Family
ID=11852721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56014136A Granted JPS57129099A (en) | 1981-02-02 | 1981-02-02 | Acoustic image expanding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57129099A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009090822A1 (en) * | 2008-01-15 | 2009-07-23 | Sharp Kabushiki Kaisha | Audio signal processing device, audio signal processing method, display device, rack, program, and recording medium |
-
1981
- 1981-02-02 JP JP56014136A patent/JPS57129099A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009090822A1 (en) * | 2008-01-15 | 2009-07-23 | Sharp Kabushiki Kaisha | Audio signal processing device, audio signal processing method, display device, rack, program, and recording medium |
| JP5095758B2 (en) * | 2008-01-15 | 2012-12-12 | シャープ株式会社 | Audio signal processing apparatus, audio signal processing method, display apparatus, rack, program, and recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0119320B2 (en) | 1989-04-11 |
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