JPS55161500A - False stereo sound reproducing device - Google Patents

False stereo sound reproducing device

Info

Publication number
JPS55161500A
JPS55161500A JP6955179A JP6955179A JPS55161500A JP S55161500 A JPS55161500 A JP S55161500A JP 6955179 A JP6955179 A JP 6955179A JP 6955179 A JP6955179 A JP 6955179A JP S55161500 A JPS55161500 A JP S55161500A
Authority
JP
Japan
Prior art keywords
signal
output
phase shifter
sound
voice
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
JP6955179A
Other languages
Japanese (ja)
Other versions
JPS5927160B2 (en
Inventor
Yukinobu Ishigaki
Yutaka Haramoto
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP54069551A priority Critical patent/JPS5927160B2/en
Publication of JPS55161500A publication Critical patent/JPS55161500A/en
Publication of JPS5927160B2 publication Critical patent/JPS5927160B2/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 

Abstract

PURPOSE:To reproduce selectively monaural sound or false stereo sound automatically according to contents of the source, by stopping the reproducing operation of false stereo sound when the nmonaural sound signal is a signal dependent upon human's voice. CONSTITUTION:The monaural sound signal output from source 8 is phase-shifted in phase shifter 12 by a phase shift quantity different dependently upon the input signal frequency. The output of phase shifter 12 and the signal which does not pass through phase shifter 12 are subjected to addition and subtraction by adder and subtractor 10 and 11 and are reproduced and output as false stereo sound. Meanwhile, the monaural sound signal is input to a frequency select circuit consisting of band-pass filter 13, band-stop filter 14 and so on to discriminate whether the monaural sound signal is a signal dependent upon human's voice or not. If it is discriminated that the monaural sound signal is a signal dependent upon human's voice, an external control signal is output to electronic attenuator 21 to cut off the output of phase shifter 12.
JP54069551A 1979-06-04 1979-06-04 Pseudo stereo sound reproduction device Expired JPS5927160B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54069551A JPS5927160B2 (en) 1979-06-04 1979-06-04 Pseudo stereo sound reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54069551A JPS5927160B2 (en) 1979-06-04 1979-06-04 Pseudo stereo sound reproduction device

Publications (2)

Publication Number Publication Date
JPS55161500A true JPS55161500A (en) 1980-12-16
JPS5927160B2 JPS5927160B2 (en) 1984-07-03

Family

ID=13405967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54069551A Expired JPS5927160B2 (en) 1979-06-04 1979-06-04 Pseudo stereo sound reproduction device

Country Status (1)

Country Link
JP (1) JPS5927160B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001363A1 (en) * 1984-08-10 1986-02-27 Matsushita Electric Industrial Co., Ltd. Apparatus for reproducing sound field
US6590983B1 (en) * 1998-10-13 2003-07-08 Srs Labs, Inc. Apparatus and method for synthesizing pseudo-stereophonic outputs from a monophonic input
JP2011521551A (en) * 2008-05-13 2011-07-21 ストーミングスイス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Angle-dependent motion apparatus or method for obtaining a pseudo-stereoscopic audio signal
JP2012533953A (en) * 2009-07-22 2012-12-27 ストーミングスイス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Apparatus and method for improving stereo or pseudo-stereo audio signals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001363A1 (en) * 1984-08-10 1986-02-27 Matsushita Electric Industrial Co., Ltd. Apparatus for reproducing sound field
US6590983B1 (en) * 1998-10-13 2003-07-08 Srs Labs, Inc. Apparatus and method for synthesizing pseudo-stereophonic outputs from a monophonic input
JP2011521551A (en) * 2008-05-13 2011-07-21 ストーミングスイス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Angle-dependent motion apparatus or method for obtaining a pseudo-stereoscopic audio signal
JP2012533953A (en) * 2009-07-22 2012-12-27 ストーミングスイス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Apparatus and method for improving stereo or pseudo-stereo audio signals
JP2012533954A (en) * 2009-07-22 2012-12-27 ストーミングスイス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Apparatus and method for optimizing stereo or pseudo stereo audio signal

Also Published As

Publication number Publication date
JPS5927160B2 (en) 1984-07-03

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