EP1330914A2 - Verfahren und vorrichtung zur ratenanpassung in einem sprachpaketsystem - Google Patents

Verfahren und vorrichtung zur ratenanpassung in einem sprachpaketsystem

Info

Publication number
EP1330914A2
EP1330914A2 EP01979935A EP01979935A EP1330914A2 EP 1330914 A2 EP1330914 A2 EP 1330914A2 EP 01979935 A EP01979935 A EP 01979935A EP 01979935 A EP01979935 A EP 01979935A EP 1330914 A2 EP1330914 A2 EP 1330914A2
Authority
EP
European Patent Office
Prior art keywords
voice
packet
encoding rate
message
rate
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Withdrawn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
EP01979935A
Other languages
English (en)
French (fr)
Inventor
Qiaobing Xie
Sanjay Gupta
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of EP1330914A2 publication Critical patent/EP1330914A2/de
Withdrawn legal-status Critical Current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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/007—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS

Definitions

  • encode rate 68 and decode rate 70 are input into the codec.
  • the values of encode rate 68 and decode rate 70 are determined by rate controller 72.
  • FIG. 4 there is depicted a high-level logic flow chart that illustrates the method and operation of transmitting a voice packet in accordance with the method and system of the present invention.
  • the process begins at block 300, and thereafter passes to block 302 wherein the process encodes a frame of voice bits.
  • the process generates a CRC for the encoded voice bits, as illustrated at block 304.
  • the process After generating the CRC, the process generates a change encoding rate message to request a change of the voice encoding rate in a remote voice coder, as depicted at block 306.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Business, Economics & Management (AREA)
  • Business, Economics & Management (AREA)
  • Quality & Reliability (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
EP01979935A 2000-10-06 2001-10-05 Verfahren und vorrichtung zur ratenanpassung in einem sprachpaketsystem Withdrawn EP1330914A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68088400A 2000-10-06 2000-10-06
US680884 2000-10-06
PCT/US2001/042468 WO2002030098A2 (en) 2000-10-06 2001-10-05 Method and system for rate adaptation in a packet voice system

Publications (1)

Publication Number Publication Date
EP1330914A2 true EP1330914A2 (de) 2003-07-30

Family

ID=24732923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01979935A Withdrawn EP1330914A2 (de) 2000-10-06 2001-10-05 Verfahren und vorrichtung zur ratenanpassung in einem sprachpaketsystem

Country Status (2)

Country Link
EP (1) EP1330914A2 (de)
WO (1) WO2002030098A2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20011715A7 (fi) * 2001-08-27 2003-02-28 Nokia Corp Koodekin toiminnallisen moodin valinta
EP1513280A1 (de) 2003-09-05 2005-03-09 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren zur Datenübertragung mit Fehlererkennungsmechanismus, welches für unzuverlässige Netze und ausfallsichere Anwendungen bestimmt ist
EP1721422B1 (de) 2004-03-01 2008-01-23 BAE Systems PLC Verbindungssteuerverfahren in paketvermittelten netzwerken
ATE352138T1 (de) * 2004-05-28 2007-02-15 Cit Alcatel Anpassungsverfahren für ein mehrraten-sprach- codec
IL163092A (en) 2004-07-19 2010-11-30 Veraz Networks Ltd Processing of packets forwarded in communication networks
GB0416720D0 (en) 2004-07-27 2004-09-01 British Telecomm Method and system for voice over IP streaming optimisation
US7660366B2 (en) 2004-08-30 2010-02-09 Harmonic Inc. Message synchronization over a stochastic network
IL165010A (en) 2004-11-03 2013-04-30 Dialogic Networks Israel Ltd Methods and Devices for Providing Protection in Package-Based Communication Networks
CN100452693C (zh) * 2005-10-31 2009-01-14 连展科技(天津)有限公司 一种在无线网络中有效保证话音质量的amr方法
US8036242B2 (en) 2006-02-15 2011-10-11 Qualcomm Incorporated Dynamic capacity operating point management for a vocoder in an access terminal
JP4872415B2 (ja) * 2006-03-31 2012-02-08 日本電気株式会社 信号劣化検出方法、信号復旧検出方法及びそれらの装置並びにトラフィック伝送システム
IL200694A (en) 2009-09-02 2014-04-30 Gil Levy A method and device for transmitting frames in a communication network
US8775029B2 (en) * 2011-03-16 2014-07-08 Infineon Technologies Ag System and method for bit error rate monitoring
CN108111702B (zh) * 2017-12-07 2020-07-07 杭州闪目科技有限公司 一种对voip系统语音包丢失自动补偿的方法
US11133888B2 (en) * 2019-05-06 2021-09-28 Qualcomm Incorporated Codec configuration adaptation based on packet loss rate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1227853C (zh) * 1997-12-12 2005-11-16 汤姆森消费电子有限公司 具有增强范围和适度恶化的数字无线系统及其方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0230098A3 *

Also Published As

Publication number Publication date
WO2002030098A3 (en) 2002-07-04
WO2002030098A2 (en) 2002-04-11

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