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GB2134358A - Monaural to binaural audio processor - Google Patents
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GB2134358A - Monaural to binaural audio processor - Google Patents

Monaural to binaural audio processor

Info

Publication number
GB2134358A
GB2134358A GB08405983A GB8405983A GB2134358A GB 2134358 A GB2134358 A GB 2134358A GB 08405983 A GB08405983 A GB 08405983A GB 8405983 A GB8405983 A GB 8405983A GB 2134358 A GB2134358 A GB 2134358A
Authority
GB
United Kingdom
Prior art keywords
monaural
binaural
audio
signals
led
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.)
Withdrawn
Application number
GB08405983A
Other versions
GB8405983D0 (en
Inventor
John C Bedini
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.)
TVI SYSTEMS Ltd
Original Assignee
TVI SYSTEMS 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 TVI SYSTEMS Ltd filed Critical TVI SYSTEMS Ltd
Publication of GB8405983D0 publication Critical patent/GB8405983D0/en
Publication of GB2134358A publication Critical patent/GB2134358A/en
Withdrawn legal-status Critical Current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 

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Optical Communication System (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Stereophonic Arrangements (AREA)

Abstract

Audio processors which convert monaural signals to binaural signals have had poor frequency response, lose some musical information, or are slow response. This invention provides a high quality set of binaural outputs. A high (24) or low (26) monaural input selected by a switch (21) is connected to an emitter follower (Q1) driving a light emitting diode LED (D1). A phase splitting network includes a phototransistor (Q2) responsive to the light output of the LED to provide an unbalanced ouput to terminals (36, 38) for connection to preamplifiers, amplifiers, etc. A dot bar display (22) provides visual indications of the output. The circuit can be used as a line driver, a noise reducer, and for TV audio.
GB08405983A 1982-07-22 1983-07-21 Monaural to binaural audio processor Withdrawn GB2134358A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40063182A 1982-07-22 1982-07-22
PCT/US1983/001123 WO1984000661A1 (en) 1982-07-22 1983-07-21 Monaural to binaural audio processor

Publications (2)

Publication Number Publication Date
GB8405983D0 GB8405983D0 (en) 1984-04-11
GB2134358A true GB2134358A (en) 1984-08-08

Family

ID=23584386

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08405983A Withdrawn GB2134358A (en) 1982-07-22 1983-07-21 Monaural to binaural audio processor

Country Status (7)

Country Link
EP (1) EP0113780A1 (en)
JP (1) JPS59501846A (en)
AU (1) AU1880383A (en)
DE (1) DE3390117T1 (en)
GB (1) GB2134358A (en)
NL (1) NL8320241A (en)
WO (1) WO1984000661A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595529B1 (en) * 1986-03-06 1990-04-06 Gandolfi Patrick STEREOPHONY SIMULATOR SYNTHESIZER

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156769A (en) * 1960-05-10 1964-11-10 Markowitz Jerome Stereophonic tonal output from single audio input channel
US3560656A (en) * 1967-05-01 1971-02-02 Dictaphone Corp Binaural phase differential system
US3670106A (en) * 1970-04-06 1972-06-13 Parasound Inc Stereo synthesizer
US3911776A (en) * 1973-11-01 1975-10-14 Musitronics Corp Sound effects generator
US3980964A (en) * 1974-05-20 1976-09-14 Grodinsky Robert M Noise reduction circuit
US4239939A (en) * 1979-03-09 1980-12-16 Rca Corporation Stereophonic sound synthesizer
US4308424A (en) * 1980-04-14 1981-12-29 Bice Jr Robert G Simulated stereo from a monaural source sound reproduction system

Also Published As

Publication number Publication date
NL8320241A (en) 1984-06-01
WO1984000661A1 (en) 1984-02-16
DE3390117T1 (en) 1984-11-15
JPS59501846A (en) 1984-11-01
AU1880383A (en) 1984-02-23
EP0113780A1 (en) 1984-07-25
GB8405983D0 (en) 1984-04-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)