Nothing Special   »   [go: up one dir, main page]

EP0705054A3 - Sound reproduction system - Google Patents

Sound reproduction system Download PDF

Info

Publication number
EP0705054A3
EP0705054A3 EP95114595A EP95114595A EP0705054A3 EP 0705054 A3 EP0705054 A3 EP 0705054A3 EP 95114595 A EP95114595 A EP 95114595A EP 95114595 A EP95114595 A EP 95114595A EP 0705054 A3 EP0705054 A3 EP 0705054A3
Authority
EP
European Patent Office
Prior art keywords
arrangement
elements
cross
adder
determined
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
EP95114595A
Other languages
German (de)
French (fr)
Other versions
EP0705054A2 (en
EP0705054B1 (en
Inventor
Friedbert Stuhlfelner
Harri Valio
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.)
Nokia Technology GmbH
Original Assignee
Nokia Technology GmbH
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 Nokia Technology GmbH filed Critical Nokia Technology GmbH
Publication of EP0705054A2 publication Critical patent/EP0705054A2/en
Publication of EP0705054A3 publication Critical patent/EP0705054A3/en
Application granted granted Critical
Publication of EP0705054B1 publication Critical patent/EP0705054B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic Arrangements (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Die Erfindung befaßt sich mit der Schaltungsvereinfachung von zweikanalig ausgebildeten Tonsignalquellen (10), denen eine Überblendanordnung (11) und eine Anordnung (13) zur digitalen Bearbeitung von Tonsignalen nachgeordnet ist. Der Schaltungsaufwand ist insbesondere dann hoch, wenn die Tonsignalquelle (10) und die Überblendanordnung (11) eine Einheit bilden und räumlichen Abstand zur Anordnung (13) haben. Die Vereinfachung wird dadurch realisiert, daß aus den nach der Überblendanordnung (11) vorliegenden Tonsignalen die an der Überblendanordnung (11) eingestellte Signalaufteilung auf verschiedene Abhörorte ermittelt wird. Dazu werden zunächst in zwei Addiergliedern (12.2, 12.3) die Ausgangstonsignale (L, R) rekonstruiert und einem vierten Addierglied (12.4) zugeführt. Jeweils zwei Tonsignale (LV, RV) werden einem ersten Addierglied (12.1) zugeführt. Die nach den Addiergliedern (12.1/4) vorliegenden Signale werden dann in einem Divisionsglied (20) zueinander ins Verhältnis gesetzt. Aus dem dort ermittelten Quotienten Q wird dann in einem Kalkulationsglied (21) die Aufteilungsrate bestimmt und Multipliziergliedern (M1-4) zur Verfügung gestellt. Symmetrisch zu den Addiergliedern (12.1/4) sind Anordnungen (17) zur Ermittlung des durchschnittlichen Pegelwerts mit nachfolgenden Glättungsgliedern (18) angeordnet.

Figure 00000001
The invention relates to the simplification of the circuit of two-channel sound signal sources (10), which is followed by a cross-fade arrangement (11) and an arrangement (13) for the digital processing of sound signals. The circuit complexity is particularly high when the sound signal source (10) and the cross-fade arrangement (11) form a unit and are spatially spaced from the arrangement (13). The simplification is achieved in that the signal distribution set on the cross-fading arrangement (11) to different listening locations is determined from the audio signals present after the cross-fading arrangement (11). For this purpose, the output sound signals (L, R) are first reconstructed in two adder elements (12.2, 12.3) and fed to a fourth adder element (12.4). Two sound signals (L V , R V ) are fed to a first adder (12.1). The signals present after the adding elements (12.1 / 4) are then related to one another in a division element (20). From the quotient Q determined there, the distribution rate is then determined in a calculation element (21) and multiplier elements (M1-4) are made available. Arrangements (17) for determining the average level value with subsequent smoothing elements (18) are arranged symmetrically to the adder elements (12.1 / 4).
Figure 00000001
EP95114595A 1994-09-30 1995-09-16 Sound reproduction system Expired - Lifetime EP0705054B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4435224 1994-09-30
DE4435224A DE4435224A1 (en) 1994-09-30 1994-09-30 Sound display device

Publications (3)

Publication Number Publication Date
EP0705054A2 EP0705054A2 (en) 1996-04-03
EP0705054A3 true EP0705054A3 (en) 1998-07-01
EP0705054B1 EP0705054B1 (en) 2005-12-14

Family

ID=6529777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114595A Expired - Lifetime EP0705054B1 (en) 1994-09-30 1995-09-16 Sound reproduction system

Country Status (4)

Country Link
US (1) US5592558A (en)
EP (1) EP0705054B1 (en)
JP (1) JP3586012B2 (en)
DE (2) DE4435224A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5872851A (en) * 1995-09-18 1999-02-16 Harman Motive Incorporated Dynamic stereophonic enchancement signal processing system
US6522758B1 (en) 1999-08-18 2003-02-18 Sound Advance Systems, Inc. Compensation system for planar loudspeakers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856065A (en) * 1987-02-27 1989-08-08 Pioneer Electronic Corporation Power fader for a loudspeaker system
EP0357034A2 (en) * 1988-08-30 1990-03-07 Nec Corporation Audio signal processing system performing balance control in both amplitude and phase of audio signal
EP0462285A1 (en) * 1989-12-29 1991-12-27 Fujitsu Ten, Ltd. Acoustic reproducing device
EP0479456A2 (en) * 1990-10-01 1992-04-08 Ford Motor Company Limited Automatically configured audio system
DE4303386A1 (en) * 1993-02-05 1994-08-11 Blaupunkt Werke Gmbh Circuit arrangement for the digital processing of audio signals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397286A (en) * 1964-09-17 1968-08-13 Gen Motors Corp Four-speaker adjustable stereo sound system
EP0352627B1 (en) * 1988-07-20 1995-03-08 Sanyo Electric Co., Ltd. Sound reproducer
US4866774A (en) * 1988-11-02 1989-09-12 Hughes Aircraft Company Stero enhancement and directivity servo
JP2630651B2 (en) * 1989-07-26 1997-07-16 ヤマハ株式会社 Fader device
JPH07101827B2 (en) * 1989-10-13 1995-11-01 ヤマハ株式会社 Mixing console
US5216718A (en) * 1990-04-26 1993-06-01 Sanyo Electric Co., Ltd. Method and apparatus for processing audio signals
US5504819A (en) * 1990-06-08 1996-04-02 Harman International Industries, Inc. Surround sound processor with improved control voltage generator
DE4106844A1 (en) * 1991-03-04 1992-09-10 Blaupunkt Werke Gmbh Car radio system allowing fader control of four loudspeakers - has four-resistor bridge connecting loudspeakers to receiver via capacitors, with centre tap connected to negative terminal of front and positive terminal of rear loudspeakers
US5325435A (en) * 1991-06-12 1994-06-28 Matsushita Electric Industrial Co., Ltd. Sound field offset device
JP2897586B2 (en) * 1993-03-05 1999-05-31 ヤマハ株式会社 Sound field control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856065A (en) * 1987-02-27 1989-08-08 Pioneer Electronic Corporation Power fader for a loudspeaker system
EP0357034A2 (en) * 1988-08-30 1990-03-07 Nec Corporation Audio signal processing system performing balance control in both amplitude and phase of audio signal
EP0462285A1 (en) * 1989-12-29 1991-12-27 Fujitsu Ten, Ltd. Acoustic reproducing device
EP0479456A2 (en) * 1990-10-01 1992-04-08 Ford Motor Company Limited Automatically configured audio system
DE4303386A1 (en) * 1993-02-05 1994-08-11 Blaupunkt Werke Gmbh Circuit arrangement for the digital processing of audio signals

Also Published As

Publication number Publication date
JP3586012B2 (en) 2004-11-10
EP0705054A2 (en) 1996-04-03
US5592558A (en) 1997-01-07
DE59511029D1 (en) 2006-01-19
DE4435224A1 (en) 1996-04-04
JPH08182096A (en) 1996-07-12
EP0705054B1 (en) 2005-12-14

Similar Documents

Publication Publication Date Title
DE69839329T2 (en) Surround sound channel, coding and decoding
DE69214523T2 (en) DECODER FOR VARIABLE NUMBER OF CHANNEL DISPLAYS OF MULTI-DIMENSIONAL SOUND FIELDS
DE69210689T2 (en) ENCODER / DECODER FOR MULTI-DIMENSIONAL SOUND FIELDS
Avendano Frequency-domain source identification and manipulation in stereo mixes for enhancement, suppression and re-panning applications
US6405163B1 (en) Process for removing voice from stereo recordings
US5113437A (en) Signal identification system
HK1245555A1 (en) Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
EP1864279B1 (en) Device and method for producing a data flow and for producing a multi-channel representation
DE69827775T2 (en) TONKANALSMISCHUNG
WO2007041231A2 (en) Method and apparatus for removing or isolating voice or instruments on stereo recordings
EP0825800A3 (en) Method and apparatus for generating multi-audio signals from a mono audio signal
DE10148351B4 (en) Method and device for selecting a sound algorithm
DE69325950T2 (en) Digital transmission system
EP0705054A3 (en) Sound reproduction system
US20050244019A1 (en) Method and apparatus to improve the reproduction of music content
DE2827159B2 (en) Method of broadcasting stereo. Phonic signals on two equivalent television sound channels (two-carrier method) and device for receiving a signal transmitted according to this method
DE2605056A1 (en) Directional loudspeaker system for conference halls - has microphones located on dias with outputs separately connected to delay circuit
DE2139098C3 (en) Arrangement for splitting quadrophonic information in the form of two signal mixtures into four playback signals
DE3118704A1 (en) Playback synthesizer
JPS57168539A (en) Coding system
DE1297677B (en) Process for the conversion of monophonic or insufficiently stereophonic recorded, stored or transmitted sound information into a two-channel or multi-channel sound information stereophonic and spatial character and facilities for carrying out the process as well as an application of the process
DE9310389U1 (en) Device for the re-mixing of multi-channel sound recordings to 2-channel room effect recordings, especially for headphone playback
DE2139098A1 (en) Arrangement for the reproduction of information in four-channel stereophony (quadrophony)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19980710

17Q First examination report despatched

Effective date: 20000119

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NOKIA TECHNOLOGY GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59511029

Country of ref document: DE

Date of ref document: 20060119

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060325

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060322

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH

Effective date: 20060405

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20061018

Year of fee payment: 12

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060915

BERE Be: lapsed

Owner name: NOKIA TECHNOLOGY G.M.B.H.

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130927

Year of fee payment: 19

Ref country code: FR

Payment date: 20130919

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130924

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140929

Year of fee payment: 20

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140916

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140916

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140930

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59511029

Country of ref document: DE