EP1130577A3 - Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen - Google Patents

Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen Download PDF

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Publication number
EP1130577A3
EP1130577A3 EP01102129A EP01102129A EP1130577A3 EP 1130577 A3 EP1130577 A3 EP 1130577A3 EP 01102129 A EP01102129 A EP 01102129A EP 01102129 A EP01102129 A EP 01102129A EP 1130577 A3 EP1130577 A3 EP 1130577A3
Authority
EP
European Patent Office
Prior art keywords
frequencies
frequency
reconstruction
mid
range
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
EP01102129A
Other languages
English (en)
French (fr)
Other versions
EP1130577B1 (de
EP1130577A2 (de
Inventor
Jürgen Schultz
Klaus Dr. Schaaf
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1130577A2 publication Critical patent/EP1130577A2/de
Publication of EP1130577A3 publication Critical patent/EP1130577A3/de
Application granted granted Critical
Publication of EP1130577B1 publication Critical patent/EP1130577B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Telephone Function (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen, bei dem das technische Problem, für eine Wiedergabe eines gestörten Sprachsignals eine möglichst naturgetreue Wiedergabe zu ermöglichen, durch ein Verfahren gelöst wird, bei dem oberhalb einer Grenzfrequenz ω0 mindestens zwei benachbart angeordnete Frequenzanteile ωfa1, ωfa2, ... mit erhöhter Amplitude im Sprachsignal bestimmt werden und bei dem die Grundfrequenz ωg des Sprachsignals als Frequenzdifferenz zwischen den mindestens zwei benachbarten Frequenzanteilen ωfa1, ωfa2, ... bestimmt wird und bei dem mit Hilfe der ermittelten Grundfrequenz ωg und des Sprachsignals der tieffrequente Frequenzbereich unterhalb der Grenzfrequenz ωg rekonstruiert wird.
Die Erfindung betrifft auch eine Vorrichtung zur Durchführung des vorgenannten Verfahrens.
EP01102129A 2000-03-02 2001-02-01 Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen Expired - Lifetime EP1130577B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10010037 2000-03-02
DE10010037A DE10010037B4 (de) 2000-03-02 2000-03-02 Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen

Publications (3)

Publication Number Publication Date
EP1130577A2 EP1130577A2 (de) 2001-09-05
EP1130577A3 true EP1130577A3 (de) 2002-09-18
EP1130577B1 EP1130577B1 (de) 2007-06-06

Family

ID=7633152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102129A Expired - Lifetime EP1130577B1 (de) 2000-03-02 2001-02-01 Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen

Country Status (3)

Country Link
EP (1) EP1130577B1 (de)
AT (1) ATE364221T1 (de)
DE (2) DE10010037B4 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE528748T1 (de) 2006-01-31 2011-10-15 Nuance Communications Inc Verfahren und entsprechendes system zur erweiterung der spektralen bandbreite eines sprachsignals
CN111863006B (zh) * 2019-04-30 2024-07-16 华为技术有限公司 一种音频信号处理方法、音频信号处理装置和耳机
CN112151065B (zh) * 2019-06-28 2024-03-15 力同科技股份有限公司 单音信号频率检测方法、装置、设备及计算机存储介质
CN113362840B (zh) * 2021-06-02 2022-03-29 浙江大学 基于内建传感器欠采样数据的通用语音信息恢复装置及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091237A (en) * 1975-10-06 1978-05-23 Lockheed Missiles & Space Company, Inc. Bi-Phase harmonic histogram pitch extractor
US4700390A (en) * 1983-03-17 1987-10-13 Kenji Machida Signal synthesizer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490843A (en) * 1982-06-14 1984-12-25 Bose Corporation Dynamic equalizing
DE3782959T2 (de) * 1986-04-01 1993-06-24 Matsushita Electric Ind Co Ltd Erzeuger von niederfrequenten toenen.
JP2779886B2 (ja) * 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091237A (en) * 1975-10-06 1978-05-23 Lockheed Missiles & Space Company, Inc. Bi-Phase harmonic histogram pitch extractor
US4700390A (en) * 1983-03-17 1987-10-13 Kenji Machida Signal synthesizer

Also Published As

Publication number Publication date
DE50112581D1 (de) 2007-07-19
EP1130577B1 (de) 2007-06-06
EP1130577A2 (de) 2001-09-05
DE10010037B4 (de) 2009-11-26
ATE364221T1 (de) 2007-06-15
DE10010037A1 (de) 2001-09-06

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