EP2139133A3 - Device and method for matching the playback spectrum of two audio sources - Google Patents

Device and method for matching the playback spectrum of two audio sources Download PDF

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Publication number
EP2139133A3
EP2139133A3 EP09100254.3A EP09100254A EP2139133A3 EP 2139133 A3 EP2139133 A3 EP 2139133A3 EP 09100254 A EP09100254 A EP 09100254A EP 2139133 A3 EP2139133 A3 EP 2139133A3
Authority
EP
European Patent Office
Prior art keywords
audio sources
matching
transfer function
spectrum
input
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Withdrawn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
EP09100254.3A
Other languages
German (de)
French (fr)
Other versions
EP2139133A2 (en
Inventor
Stefan Rychlak
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2139133A2 publication Critical patent/EP2139133A2/en
Publication of EP2139133A3 publication Critical patent/EP2139133A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
    • H04H20/22—Arrangements for broadcast of identical information via plural broadcast systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/26—Arrangements for switching distribution systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zur Anpassung des Wiedergabespektrums zweier Audioquellen, enthaltend ein adaptives Filter, welches einen ersten und einen zweiten Eingang und einen Ausgang aufweist, wobei eine erste Übertragungsfunktion zur Wiedergabe der ersten Audioquelle am ersten Eingang und eine zweite Übertragungsfunktion zur Wiedergabe der zweiten Audioquelle am zweiten Eingang vorgesehen ist, wobei die erste Übertragungsfunktion vom Benutzer einstellbar ist und die zweite Übertragungsfunktion automatisiert ermittelbar ist, so dass das Wiedergabespektrum am Ausgang des adaptiven Filters für beide Audioquellen gleich ist.

Figure imgaf001
The invention relates to a device for adjusting the reproduction spectrum of two audio sources, comprising an adaptive filter having a first and a second input and an output, wherein a first transfer function for reproducing the first audio source at the first input and a second transfer function for reproducing the second audio source is provided at the second input, wherein the first transfer function is adjustable by the user and the second transfer function is automatically determined, so that the playback spectrum at the output of the adaptive filter for both audio sources is the same.
Figure imgaf001
EP09100254.3A 2008-06-26 2009-04-29 Device and method for matching the playback spectrum of two audio sources Withdrawn EP2139133A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810002689 DE102008002689A1 (en) 2008-06-26 2008-06-26 Apparatus and method for adjusting the reproduction spectrum of two audio sources

Publications (2)

Publication Number Publication Date
EP2139133A2 EP2139133A2 (en) 2009-12-30
EP2139133A3 true EP2139133A3 (en) 2015-03-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09100254.3A Withdrawn EP2139133A3 (en) 2008-06-26 2009-04-29 Device and method for matching the playback spectrum of two audio sources

Country Status (3)

Country Link
EP (1) EP2139133A3 (en)
CN (1) CN101615959B (en)
DE (1) DE102008002689A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9384745B2 (en) 2014-08-12 2016-07-05 Nxp B.V. Article of manufacture, system and computer-readable storage medium for processing audio signals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7314414B2 (en) * 2019-12-02 2023-07-25 グーグル エルエルシー Method, system and medium for seamless audio mixing
CN115086925B (en) * 2021-03-15 2025-07-11 Oppo广东移动通信有限公司 Audio source switching method, Bluetooth audio receiving device, audio source device and playback system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1370016A1 (en) * 2002-06-07 2003-12-10 Sony International (Europe) GmbH Method and apparatus for the reception of an audio signal transmitted both in analogue and in higher-quality digital modulation, gradually varying the mixing ratio from digital to analogue in case of poor channel conditions, so as to make the change less perceptible
EP1681765A2 (en) * 2005-01-13 2006-07-19 Delphi Technologies, Inc. Audio automatic volume control
US20070293167A1 (en) * 2006-06-16 2007-12-20 Vasant Shridhar Audio correlation system for high definition radio blending

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3526225B2 (en) * 1998-11-04 2004-05-10 シャープ株式会社 Digital broadcast receiver
DE10103400A1 (en) 2001-01-26 2002-08-14 Bosch Gmbh Robert Audio service switching method for a radio receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1370016A1 (en) * 2002-06-07 2003-12-10 Sony International (Europe) GmbH Method and apparatus for the reception of an audio signal transmitted both in analogue and in higher-quality digital modulation, gradually varying the mixing ratio from digital to analogue in case of poor channel conditions, so as to make the change less perceptible
EP1681765A2 (en) * 2005-01-13 2006-07-19 Delphi Technologies, Inc. Audio automatic volume control
US20070293167A1 (en) * 2006-06-16 2007-12-20 Vasant Shridhar Audio correlation system for high definition radio blending

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9384745B2 (en) 2014-08-12 2016-07-05 Nxp B.V. Article of manufacture, system and computer-readable storage medium for processing audio signals

Also Published As

Publication number Publication date
CN101615959B (en) 2013-06-12
EP2139133A2 (en) 2009-12-30
CN101615959A (en) 2009-12-30
DE102008002689A1 (en) 2009-12-31

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