PL310082A1 - Method of polarising sound fields especially to obtain the best stereophonic effect in a confined small space irrespective of location of cound listening - Google Patents

Method of polarising sound fields especially to obtain the best stereophonic effect in a confined small space irrespective of location of cound listening

Info

Publication number
PL310082A1
PL310082A1 PL93310082A PL31008293A PL310082A1 PL 310082 A1 PL310082 A1 PL 310082A1 PL 93310082 A PL93310082 A PL 93310082A PL 31008293 A PL31008293 A PL 31008293A PL 310082 A1 PL310082 A1 PL 310082A1
Authority
PL
Poland
Prior art keywords
acoustic
cound
polarising
listening
location
Prior art date
Application number
PL93310082A
Other versions
PL174848B1 (en
Inventor
Waldemar Kehler
Original Assignee
Waldemar Kehler
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
Priority claimed from DE19924244397 external-priority patent/DE4244397C2/en
Application filed by Waldemar Kehler filed Critical Waldemar Kehler
Publication of PL310082A1 publication Critical patent/PL310082A1/en
Publication of PL174848B1 publication Critical patent/PL174848B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Polarising Elements (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

A process is disclosed for producing polarized acoustic fields. The directionality thereby obtained in a very wide auditory range, even with a very small monolithic, purely passive system, results in a subjectively unusually broad spatial stereo effect. The ability of bodies (acoustic "conductors", including "insulators" or action reflectors for mirror sources) to create at least one spatial preferred direction for the wave progression by means of internal structuring, special geometries and surfaces is exploited to this end (polarization). Longitudinally structured bodies, especially clusters of capillary tubes, have this ability and favour one longitudinal component of the acoustic progression. The record-side acoustic 3-D space appears to be reproducible in phase using acoustic transducers according to the process to a large extent without electronic aids. However, active smoothing of frequency-response and phase-response advantageously compensate for certain system-related features. Electronic delay units simulate the behaviour of the enclosure of a system according to the invention and improve its characteristics.
PL93310082A 1992-12-29 1993-12-29 Method of polarising sound fields especially to obtain the best stereophonic effect in a confined small space irrespective of location of cound listening PL174848B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19924244397 DE4244397C2 (en) 1992-12-29 1992-12-29 Method and device for stereophonic reproduction and recording
DE4323537 1993-07-14
PCT/EP1993/003716 WO1994015439A2 (en) 1992-12-29 1993-12-29 Method of polarizing acoustic fields in particular with the aim of achieving an extremely broad, non-localized and spatial stereo effect requiring little space

Publications (2)

Publication Number Publication Date
PL310082A1 true PL310082A1 (en) 1995-11-27
PL174848B1 PL174848B1 (en) 1998-09-30

Family

ID=25921860

Family Applications (1)

Application Number Title Priority Date Filing Date
PL93310082A PL174848B1 (en) 1992-12-29 1993-12-29 Method of polarising sound fields especially to obtain the best stereophonic effect in a confined small space irrespective of location of cound listening

Country Status (16)

Country Link
EP (1) EP0677234B1 (en)
JP (1) JPH08504963A (en)
KR (1) KR960700619A (en)
AT (1) ATE158463T1 (en)
AU (1) AU6425094A (en)
BR (1) BR9307798A (en)
CA (1) CA2152611A1 (en)
CZ (1) CZ288068B6 (en)
DE (1) DE59307400D1 (en)
DK (1) DK0677234T3 (en)
ES (1) ES2110739T3 (en)
GR (1) GR3025705T3 (en)
HU (1) HUT72948A (en)
PL (1) PL174848B1 (en)
RU (1) RU95114372A (en)
WO (1) WO1994015439A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1487847A (en) * 1974-09-25 1977-10-05 Ard Anstalt Microphone units
GB1572093A (en) * 1976-03-16 1980-07-23 Wehner R Omniphonic transducer system
GB8617953D0 (en) * 1986-07-23 1986-08-28 Wehner R Microphone & loudspeaker system
US5109416A (en) * 1990-09-28 1992-04-28 Croft James J Dipole speaker for producing ambience sound

Also Published As

Publication number Publication date
AU6425094A (en) 1994-07-19
EP0677234A1 (en) 1995-10-18
KR960700619A (en) 1996-01-20
BR9307798A (en) 1995-11-14
WO1994015439A2 (en) 1994-07-07
PL174848B1 (en) 1998-09-30
WO1994015439A3 (en) 1994-08-18
GR3025705T3 (en) 1998-03-31
ATE158463T1 (en) 1997-10-15
CA2152611A1 (en) 1994-07-07
JPH08504963A (en) 1996-05-28
HUT72948A (en) 1996-06-28
DK0677234T3 (en) 1998-05-25
CZ169895A3 (en) 1996-04-17
RU95114372A (en) 1997-04-20
HU9501092D0 (en) 1995-06-28
ES2110739T3 (en) 1998-02-16
DE59307400D1 (en) 1997-10-23
EP0677234B1 (en) 1997-09-17
CZ288068B6 (en) 2001-04-11

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