JPS55150700A - Stereophonic reproducing system - Google Patents

Stereophonic reproducing system

Info

Publication number
JPS55150700A
JPS55150700A JP5879779A JP5879779A JPS55150700A JP S55150700 A JPS55150700 A JP S55150700A JP 5879779 A JP5879779 A JP 5879779A JP 5879779 A JP5879779 A JP 5879779A JP S55150700 A JPS55150700 A JP S55150700A
Authority
JP
Japan
Prior art keywords
sub
speaker
speakers
amplifiers
adding circuit
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
Application number
JP5879779A
Other languages
Japanese (ja)
Other versions
JPS6013640B2 (en
Inventor
Hideki Fujie
Yasutoshi Nakama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54058797A priority Critical patent/JPS6013640B2/en
Publication of JPS55150700A publication Critical patent/JPS55150700A/en
Publication of JPS6013640B2 publication Critical patent/JPS6013640B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE:To make it possible to obtian acoustic effects as great as a large hall with the space of a general room, by forming electrically the support sound of a prescribed time delay and by utilizing two sub-speakers to reproduce the reflection sound. CONSTITUTION:The signals of stereo signal source STG are applied to the main speakers through left and right pre-amplifiers and main amplifiers. Meanwhile, outputs of left and right pre-amplifiers are added in adding circuit MIX1 and are further added in adding circuit MIX2 through attenuating circuit ATT0, delay circuits tau1- and attenuating circuits ATT1-, and the time delay of the reflection sound is set to 30-220msec. This output is amplified and supplied to sub-speaker SS1, and a signal which is obtained by delaying the output of adding circuit MIX2 by approximately 20msec furthermore and is larger than the signal of speaker SS1 by approximately 6dB is supplied to the other sub-speaker SS2. These sub-speakers are arranged symmetrically in the left and the right, so that acoustic effects can be obtained as great as a large hall with the space of a general room.
JP54058797A 1979-05-14 1979-05-14 Stereo playback method Expired JPS6013640B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54058797A JPS6013640B2 (en) 1979-05-14 1979-05-14 Stereo playback method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54058797A JPS6013640B2 (en) 1979-05-14 1979-05-14 Stereo playback method

Publications (2)

Publication Number Publication Date
JPS55150700A true JPS55150700A (en) 1980-11-22
JPS6013640B2 JPS6013640B2 (en) 1985-04-08

Family

ID=13094565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54058797A Expired JPS6013640B2 (en) 1979-05-14 1979-05-14 Stereo playback method

Country Status (1)

Country Link
JP (1) JPS6013640B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987000A (en) * 1982-11-10 1984-05-19 Pioneer Electronic Corp Natural sound field reproducing device
JPS60129800U (en) * 1984-02-07 1985-08-30 パイオニア株式会社 Sound addition device
JPS61100099U (en) * 1984-12-07 1986-06-26
JPS61202600A (en) * 1985-03-05 1986-09-08 Nissan Motor Co Ltd Accoustic device
JPS61237600A (en) * 1985-04-12 1986-10-22 Nissan Motor Co Ltd Acoustic device
US7917236B1 (en) 1999-01-28 2011-03-29 Sony Corporation Virtual sound source device and acoustic device comprising the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987000A (en) * 1982-11-10 1984-05-19 Pioneer Electronic Corp Natural sound field reproducing device
JPH0471400B2 (en) * 1982-11-10 1992-11-13 Pioneer Electronic Corp
JPS60129800U (en) * 1984-02-07 1985-08-30 パイオニア株式会社 Sound addition device
JPS61100099U (en) * 1984-12-07 1986-06-26
JPS61202600A (en) * 1985-03-05 1986-09-08 Nissan Motor Co Ltd Accoustic device
JPS61237600A (en) * 1985-04-12 1986-10-22 Nissan Motor Co Ltd Acoustic device
US7917236B1 (en) 1999-01-28 2011-03-29 Sony Corporation Virtual sound source device and acoustic device comprising the same

Also Published As

Publication number Publication date
JPS6013640B2 (en) 1985-04-08

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