JPS5636739A - Audio output unit - Google Patents
Audio output unitInfo
- Publication number
- JPS5636739A JPS5636739A JP11154179A JP11154179A JPS5636739A JP S5636739 A JPS5636739 A JP S5636739A JP 11154179 A JP11154179 A JP 11154179A JP 11154179 A JP11154179 A JP 11154179A JP S5636739 A JPS5636739 A JP S5636739A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- rom1
- addresses
- rom2
- fixed memory
- 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
Abstract
PURPOSE: To output a sound of extreme variety by simultaneously selecting one code each from fixed memory units stored with digital codes of sounds to be outputted.
CONSTITUTION: As an indication regarding a sound is applied from input part INP to central processor CPU, CPU indicates two addresses and addresses are changed at every constant time, so that fixed memory parts ROM1 and ROM2 output sound codes (digital code word). The outputs of ROM1 and ROM2, after passing through low-pass filters LPF1 and LPF2, are led to coupler CON to obtain a composite waveform, which is applied to speaker SP by way of driver D.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11154179A JPS5636739A (en) | 1979-08-31 | 1979-08-31 | Audio output unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11154179A JPS5636739A (en) | 1979-08-31 | 1979-08-31 | Audio output unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5636739A true JPS5636739A (en) | 1981-04-10 |
Family
ID=14563974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11154179A Pending JPS5636739A (en) | 1979-08-31 | 1979-08-31 | Audio output unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5636739A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58211798A (en) * | 1982-06-04 | 1983-12-09 | 松下電器産業株式会社 | Alarm sound generation circuit |
JPS60198594A (en) * | 1984-03-23 | 1985-10-08 | 株式会社日立製作所 | Voice synthesizer control system |
JPS62299900A (en) * | 1986-06-18 | 1987-12-26 | 日本電気株式会社 | Voice synthesizer |
JPH01150198A (en) * | 1987-12-08 | 1989-06-13 | Matsushita Electric Ind Co Ltd | Voice data editing apparatus |
-
1979
- 1979-08-31 JP JP11154179A patent/JPS5636739A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58211798A (en) * | 1982-06-04 | 1983-12-09 | 松下電器産業株式会社 | Alarm sound generation circuit |
JPS60198594A (en) * | 1984-03-23 | 1985-10-08 | 株式会社日立製作所 | Voice synthesizer control system |
JPH0550757B2 (en) * | 1984-03-23 | 1993-07-29 | Hitachi Ltd | |
JPS62299900A (en) * | 1986-06-18 | 1987-12-26 | 日本電気株式会社 | Voice synthesizer |
JPH01150198A (en) * | 1987-12-08 | 1989-06-13 | Matsushita Electric Ind Co Ltd | Voice data editing apparatus |
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