WO2014057442A3 - Method for measuring the loudness range of an audio signal, measuring apparatus for implementing said method, method for controlling the loudness range of an audio signal, and control apparatus for implementing said control method - Google Patents

Method for measuring the loudness range of an audio signal, measuring apparatus for implementing said method, method for controlling the loudness range of an audio signal, and control apparatus for implementing said control method Download PDF

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Publication number
WO2014057442A3
WO2014057442A3 PCT/IB2013/059243 IB2013059243W WO2014057442A3 WO 2014057442 A3 WO2014057442 A3 WO 2014057442A3 IB 2013059243 W IB2013059243 W IB 2013059243W WO 2014057442 A3 WO2014057442 A3 WO 2014057442A3
Authority
WO
WIPO (PCT)
Prior art keywords
audio signal
implementing
measuring
loudness range
control
Prior art date
Application number
PCT/IB2013/059243
Other languages
French (fr)
Other versions
WO2014057442A2 (en
Inventor
Jens Groh
Original Assignee
Institut für Rundfunktechnik 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
Priority claimed from IT000879A external-priority patent/ITTO20120879A1/en
Priority claimed from IT001011A external-priority patent/ITTO20121011A1/en
Application filed by Institut für Rundfunktechnik GmbH filed Critical Institut für Rundfunktechnik GmbH
Priority to KR2020157000013U priority Critical patent/KR20150002388U/en
Priority to DE212013000211.4U priority patent/DE212013000211U1/en
Publication of WO2014057442A2 publication Critical patent/WO2014057442A2/en
Publication of WO2014057442A3 publication Critical patent/WO2014057442A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
    • G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/69—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for evaluating synthetic or decoded voice signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3089—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Quality & Reliability (AREA)
  • General Physics & Mathematics (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

The invention relates to a measurement method for measuring the loudness range of an audio signal. In particular, said loudness range is measured in real time. Measuring apparatuses for implementing said method are also proposed (Figs. 1, 2). Such measuring apparatuses (920, 1020) are further used in control apparatuses for controlling the loudness range of the audio signal in real time. (Figs. 9, 10)
PCT/IB2013/059243 2012-10-09 2013-10-09 Method for measuring the loudness range of an audio signal, measuring apparatus for implementing said method, method for controlling the loudness range of an audio signal, and control apparatus for implementing said control method WO2014057442A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR2020157000013U KR20150002388U (en) 2012-10-09 2013-10-09 Method for measuring the loudness range of an audio signal, measuring apparatus for implementing said method, method for controlling the loudness range of an audio signal, and control apparatus for implementing said control method
DE212013000211.4U DE212013000211U1 (en) 2012-10-09 2013-10-09 Measuring device for measuring the volume range of an audio signal and control device for controlling the volume range of an audio signal

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT000879A ITTO20120879A1 (en) 2012-10-09 2012-10-09 VERFAHREN ZUM MESSEN DES LAUTSTAERKEUMFANGS EINES AUDIOSIGNALS, MESSEINRICHTUNG ZUM DURCHFUEHREN DES VERFAHRENS, VERFAHREN ZUM REGELN BZW. STEUERN DES LAUTSTAERKEUMFANGS EINES AUDIOSIGNALS UND REGEL- BZW. STEUEREINRICHTUNG ZUM DURCHFUEHREN DES REGEL-
ITTO2012A000879 2012-10-09
IT001011A ITTO20121011A1 (en) 2012-11-20 2012-11-20 VERFAHREN ZUM MESSEN DES LAUTSTAEKEUMFANGS EINES AUDIOSIGNALS, MESSEINRICHTUNG ZUM DURCHFUEHREN DES VERFAHRENS, VERFAHREN ZUM REGELN BZW. STEUERN DES LAUTSTAERKEUMFANGS EINES AUDIOSIGNALS UND REGEL- BZW. STEUEREINRICHTUNG ZUM DURCHFUHREN DES REGEL- B
ITTO2012A001011 2012-11-20

Publications (2)

Publication Number Publication Date
WO2014057442A2 WO2014057442A2 (en) 2014-04-17
WO2014057442A3 true WO2014057442A3 (en) 2014-11-27

Family

ID=49920365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/059243 WO2014057442A2 (en) 2012-10-09 2013-10-09 Method for measuring the loudness range of an audio signal, measuring apparatus for implementing said method, method for controlling the loudness range of an audio signal, and control apparatus for implementing said control method

Country Status (3)

Country Link
KR (1) KR20150002388U (en)
DE (1) DE212013000211U1 (en)
WO (1) WO2014057442A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10389323B2 (en) 2017-12-18 2019-08-20 Tls Corp. Context-aware loudness control

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5822718A (en) * 1997-01-29 1998-10-13 International Business Machines Corporation Device and method for performing diagnostics on a microphone
US6075890A (en) * 1996-06-27 2000-06-13 Samsung Electronics Co., Ltd. Video-image histogram equalization circuit and method therefor
US6731767B1 (en) * 1999-02-05 2004-05-04 The University Of Melbourne Adaptive dynamic range of optimization sound processor
WO2006058361A1 (en) * 2004-12-04 2006-06-08 Dynamic Hearing Pty Ltd Method and apparatus for adaptive sound processing parameters
WO2010000042A1 (en) * 2008-07-04 2010-01-07 Peter Blamey Linear gain amplification for mid-to-high intensity sounds in a compressive sound processor
US20100027820A1 (en) * 2006-09-05 2010-02-04 Gn Resound A/S Hearing aid with histogram based sound environment classification
US20120128164A1 (en) * 2008-08-31 2012-05-24 Peter Blamey Binaural noise reduction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075890A (en) * 1996-06-27 2000-06-13 Samsung Electronics Co., Ltd. Video-image histogram equalization circuit and method therefor
US5822718A (en) * 1997-01-29 1998-10-13 International Business Machines Corporation Device and method for performing diagnostics on a microphone
US6731767B1 (en) * 1999-02-05 2004-05-04 The University Of Melbourne Adaptive dynamic range of optimization sound processor
WO2006058361A1 (en) * 2004-12-04 2006-06-08 Dynamic Hearing Pty Ltd Method and apparatus for adaptive sound processing parameters
US20100027820A1 (en) * 2006-09-05 2010-02-04 Gn Resound A/S Hearing aid with histogram based sound environment classification
WO2010000042A1 (en) * 2008-07-04 2010-01-07 Peter Blamey Linear gain amplification for mid-to-high intensity sounds in a compressive sound processor
US20120128164A1 (en) * 2008-08-31 2012-05-24 Peter Blamey Binaural noise reduction

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Application Note - Loudness Monitoring: ITU 1770-2/EBU R128 and Loudness Control", IQUAV10 PRODUCT FAMILY, 1 March 2012 (2012-03-01), pages 1 - 3, XP055075200, Retrieved from the Internet <URL:http://www.snellgroup.com/documents/white-papers/IS_Loudness_Monitoring_and_Control.pdf> [retrieved on 20130814] *
ANONYMOUS ED - RTW GMBH & CO KG: "Solutions for Broadcast and Production - Loudness Measurement", INTERNET CITATION, 9 February 2001 (2001-02-09), pages 1 - 8, XP002711282, Retrieved from the Internet <URL:www.rtw.de/nc/en/sales-support/downloads.html?...Loudness> [retrieved on 20130801] *
BOLEY JON ET AL: "Measuring Dynamics: Comparing and Contrasting Algorithms for the Computation of Dynamic Range", AES CONVENTION 129; NOVEMBER 2010, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, 4 November 2010 (2010-11-04), XP040567149 *
SKOVENBORG ET AL: "Loudness Range (LRA) - Design and Evaluation", AES CONVENTION 132; APRIL 2012, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, 26 April 2012 (2012-04-26), XP040574580 *

Also Published As

Publication number Publication date
DE212013000211U1 (en) 2015-06-11
WO2014057442A2 (en) 2014-04-17
KR20150002388U (en) 2015-06-19

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