WO2011069293A1 - Procédé, appareil et système permettant un codage et un décodage de paroles - Google Patents

Procédé, appareil et système permettant un codage et un décodage de paroles Download PDF

Info

Publication number
WO2011069293A1
WO2011069293A1 PCT/CN2009/075476 CN2009075476W WO2011069293A1 WO 2011069293 A1 WO2011069293 A1 WO 2011069293A1 CN 2009075476 W CN2009075476 W CN 2009075476W WO 2011069293 A1 WO2011069293 A1 WO 2011069293A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
time slot
pulse code
code modulation
assembling
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.)
Ceased
Application number
PCT/CN2009/075476
Other languages
English (en)
Chinese (zh)
Inventor
李笑霜
高兴国
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP09851973A priority Critical patent/EP2472807A4/fr
Priority to PCT/CN2009/075476 priority patent/WO2011069293A1/fr
Priority to CN200980148063.9A priority patent/CN102177688B/zh
Publication of WO2011069293A1 publication Critical patent/WO2011069293A1/fr
Priority to US13/464,872 priority patent/US8849654B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G10L21/0208—Noise filtering
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

Definitions

  • the traditional PSTN Public Switched Telephone Network
  • 64K bandwidth and 3.4K spectrum voice are usually provided. Since the frequency of people's speech can usually reach 7K, the speech of the 3.4K spectrum provided in the traditional PSTN network usually has distortion, which is why the sound of the person in the phone is different from the voice of the person in the real environment. the reason.
  • the G.722 encoding and decoding method can process audio signals with a frequency of up to 7K, in the IP (Internet Protocol) network, in order to solve the problem of speech distortion, many chip manufacturers provide G-based .722 encoded, decoded voice solution.
  • the prior art shown in FIG. 1 requires two parts of hardware when implementing G.722-based voice coding and decoding:
  • One is a POTS (Plain Old Telephone Service) user board, and the user board includes Codec. (Codec) /SLIC (Subscriber Line Interface Circuit), and DSP (Digital Signal Processing) chip.
  • the DSP chip multiplies two 8K PCM (Pulse Code Modulation) signals to 16K, and realizes 16K samples through two time slots; and the DSP chip also uses 16K based on internal Processing mode, restore the PCM signal of 2 slots to a 16K data, and then perform EC (Echo cancel), Tone Detect, encoding, etc. for this 16K data, and finally with RTP (Real The -time Transport Protocol format outputs the encoded signal.
  • the process of speech decoding is the reverse process of speech coding.
  • the DSP chip that is usually applied on the existing network does not support the 16K frequency multiplication and the processing based on the 16K code stream, that is, The products that are widely used on the Internet cannot provide the speech editing and decoding functions of the 7K spectrum.
  • Supporting 16K multiplication requires the internal hardware support of the DSP chip. If you want to support the implementation of the speech coding and decoding provided by the prior art, you need to replace the hardware inside the DSP chip in the existing network. Summary of the invention
  • the embodiment of the present invention provides a voice encoding and decoding. Methods, devices and systems. The technical solution is as follows:
  • a speech coding method comprising:
  • a processing module configured to perform echo suppression and signal sound detection on the input pulse code modulation signal, and output a first signal
  • the assembling module is configured to assemble the first signal into a second signal according to a specified time slot and assembling manner
  • An embodiment of the present invention further provides a communication system, where the system includes a communication device, and the communication device includes:
  • a processing module configured to perform echo suppression and signal sound detection on the input pulse code modulation signal, and output a first signal
  • An encoding module configured to encode the second signal according to a specified encoding manner, and output the voice Signal.
  • An embodiment of the present invention further provides a communication system, where the system includes a communication device, and the communication device includes:
  • FIG. 10 is a schematic structural diagram of a communication apparatus according to Embodiment 5 of the present invention.
  • Step 201 Perform echo suppression and signal tone detection on the input pulse code modulation signal (Pu 1 Se Code Modu 1 ati on , PCM ), Outputting the first signal;
  • the first signal in this embodiment may be two 8K pulse code modulated signals, or may be four 8K pulse code modulated signals.
  • the specified coding mode may be G.711, G.722, G.729, G.726, etc.; the designated time slot refers to the time slot that needs to be occupied when the signal is input. For example, G. 711 needs to occupy one time slot. G. 722 needs to occupy 2 or 4 time slots.
  • the designated time slot may include a first time slot TS 0 and a second time slot TS 1 , where TS 0 and TS 1 respectively correspond to 8K pulses. Code modulation signal.
  • the pulse code modulation signal corresponding to the time slot TS1 is inserted in the middle of the pulse code modulation signal corresponding to the time slot TS 0 .
  • the pulse code modulation signal corresponding to the second time slot needs to be inserted in the middle of the pulse code modulation signal corresponding to the first time slot, so as to be assembled into one
  • the second signal that is, the pulse code modulation signal corresponding to the time slot TS 0 in the buffer is inserted into the pulse code modulation signal corresponding to the time slot TS1 in the buffer, and after the insertion is completed, the two pulse code modulation signals in the buffer are assembled into one.
  • the second signal that is, the pulse code modulation signal corresponding to the time slot TS 0 in the buffer is inserted into the pulse code modulation signal corresponding to the time slot TS1 in the buffer, and after the insertion is completed, the two pulse code modulation signals in the buffer are assembled into one.
  • the second signal is the pulse code modulation signal corresponding to the time slot TS 0 in the buffer is inserted into the pulse code modulation signal corresponding to the time slot TS1 in the buffer, and after the insertion is completed, the two pulse code modulation signals in the
  • the encoding module 505 is configured to encode the second signal according to the specified encoding manner, and output the voice signal.
  • the encoding module 505 is configured to encode the second signal according to the specified encoding manner, and output the voice signal.
  • This embodiment also provides a communication system, including a communication device, as shown in FIG.
  • the communication device includes:

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (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)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention se rapporte à un procédé, à un appareil et à un système permettant un codage et un décodage de paroles. Le procédé consiste à : assembler un signal d'entrée de modulation par impulsions et codage dans un signal selon un créneau attribué et selon une manière d'assembler; coder le signal assemblé selon une manière de codage attribuée et transmettre le signal vocal codé. Parce que le processus d'assemblage ou de séparation du signal peut être réalisé par un logiciel, la présente invention a l'avantage de réaliser un codage et un décodage de paroles pour le spectre de fréquence de 7k dans l'actuel réseau en partant du principe qu'il n'est pas nécessaire de remplacer le matériel de l'actuel réseau.
PCT/CN2009/075476 2009-12-10 2009-12-10 Procédé, appareil et système permettant un codage et un décodage de paroles Ceased WO2011069293A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09851973A EP2472807A4 (fr) 2009-12-10 2009-12-10 Procédé, appareil et système permettant un codage et un décodage de paroles
PCT/CN2009/075476 WO2011069293A1 (fr) 2009-12-10 2009-12-10 Procédé, appareil et système permettant un codage et un décodage de paroles
CN200980148063.9A CN102177688B (zh) 2009-12-10 2009-12-10 语音编、解码方法、装置和系统
US13/464,872 US8849654B2 (en) 2009-12-10 2012-05-04 Method, device and system for voice encoding/decoding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/075476 WO2011069293A1 (fr) 2009-12-10 2009-12-10 Procédé, appareil et système permettant un codage et un décodage de paroles

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/464,872 Continuation US8849654B2 (en) 2009-12-10 2012-05-04 Method, device and system for voice encoding/decoding

Publications (1)

Publication Number Publication Date
WO2011069293A1 true WO2011069293A1 (fr) 2011-06-16

Family

ID=44145090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/075476 Ceased WO2011069293A1 (fr) 2009-12-10 2009-12-10 Procédé, appareil et système permettant un codage et un décodage de paroles

Country Status (4)

Country Link
US (1) US8849654B2 (fr)
EP (1) EP2472807A4 (fr)
CN (1) CN102177688B (fr)
WO (1) WO2011069293A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969689B1 (fr) * 1998-06-05 2002-07-31 Lucent Technologies Inc. Commutation de trafic internet à travers des commutateurs numériques avec un réseau de commutation de canaux temporels
CN1122397C (zh) * 1998-12-23 2003-09-24 三星电子株式会社 消除交换系统中回声和侧音的电路
US20080287063A1 (en) * 2007-05-16 2008-11-20 Texas Instruments Incorporated Controller integrated audio codec for advanced audio distribution profile audio streaming applications
CN100456358C (zh) * 2004-04-08 2009-01-28 华为技术有限公司 一种实现端到端语音加密的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7339924B1 (en) * 1998-09-30 2008-03-04 Cisco Technology, Inc. Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS)
US7003093B2 (en) * 2000-09-08 2006-02-21 Intel Corporation Tone detection for integrated telecommunications processing
US20020116186A1 (en) * 2000-09-09 2002-08-22 Adam Strauss Voice activity detector for integrated telecommunications processing
US6738358B2 (en) * 2000-09-09 2004-05-18 Intel Corporation Network echo canceller for integrated telecommunications processing
US7035282B1 (en) 2001-04-10 2006-04-25 Cisco Technology, Inc. Wideband telephones, adapters, gateways, software and methods for wideband telephony over IP network
KR100475879B1 (ko) 2002-11-11 2005-03-11 한국전자통신연구원 유무선 인터넷 전화용 통신 단말장치
US7889783B2 (en) * 2002-12-06 2011-02-15 Broadcom Corporation Multiple data rate communication system
US7450570B1 (en) 2003-11-03 2008-11-11 At&T Intellectual Property Ii, L.P. System and method of providing a high-quality voice network architecture
EP1748590B1 (fr) * 2005-07-28 2008-01-02 Alcatel Lucent Télécommunication à bande large et à bande étroite
US8249066B2 (en) * 2008-02-19 2012-08-21 Dialogic Corporation Apparatus and method for allocating media resources
JP4661901B2 (ja) * 2008-04-18 2011-03-30 ソニー株式会社 信号処理装置および方法、プログラム、並びに信号処理システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969689B1 (fr) * 1998-06-05 2002-07-31 Lucent Technologies Inc. Commutation de trafic internet à travers des commutateurs numériques avec un réseau de commutation de canaux temporels
CN1122397C (zh) * 1998-12-23 2003-09-24 三星电子株式会社 消除交换系统中回声和侧音的电路
CN100456358C (zh) * 2004-04-08 2009-01-28 华为技术有限公司 一种实现端到端语音加密的方法
US20080287063A1 (en) * 2007-05-16 2008-11-20 Texas Instruments Incorporated Controller integrated audio codec for advanced audio distribution profile audio streaming applications

Also Published As

Publication number Publication date
US8849654B2 (en) 2014-09-30
CN102177688A (zh) 2011-09-07
EP2472807A4 (fr) 2013-01-02
CN102177688B (zh) 2014-12-17
US20120221327A1 (en) 2012-08-30
EP2472807A1 (fr) 2012-07-04

Similar Documents

Publication Publication Date Title
CA2244007C (fr) Methode et dispositif de stockage et de retransmission de signaux vocaux
US20110044324A1 (en) Method and Apparatus for Voice Communication Based on Instant Messaging System
CN115460186B (zh) 一种基于amr-wb编码的能力平台录音文件生成方法和装置
US8340959B2 (en) Method and apparatus for transmitting wideband speech signals
US20100082335A1 (en) System and method for transmitting and receiving wideband speech signals
CN101079836A (zh) 一种基于非对称媒体的即时通信方法及系统
CN105321522A (zh) 一种语音数据处理和传输的方法和装置
WO2012065567A1 (fr) Procédé et appareil de conversion de message texte
US7079498B2 (en) Method, apparatus, and system for reducing memory requirements for echo cancellers
WO2011137872A2 (fr) Procédé, système et terminal correspondant de communication multimédia
CN103826084A (zh) 一种音频编码方法
CN206649899U (zh) 一种实现实时语音互译的通信装置
CN102177688B (zh) 语音编、解码方法、装置和系统
CN113035226A (zh) 语音通话方法、通信终端和计算机可读介质
WO2019036089A1 (fr) Normalisation de signaux à bande haute dans des communications de téléphonie en réseau
CN101442575A (zh) 一种网络语音系统的实现方法
CN107438181A (zh) 一种音视频处理方法和装置
CN2753067Y (zh) Voip电话终端
CN1738320A (zh) 一种在通话过程中播放音乐的手机及其方法
WO2007014789A1 (fr) Telecommunication a large bande/bande etroite
CN105407243B (zh) 一种Android平台上使用改进仿射投影算法的回声消除VOIP系统
CN117749947A (zh) 一种基于多端协议的多方通话处理方法及系统
KR100913818B1 (ko) Ｉｐ 전화 시스템에 구비된 녹취장치 및 그 녹취방법
CN115457977A (zh) 一种收发端双向双模音频交互系统
CN119583712A (zh) 录音方法、装置、设备、介质及程序产品

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980148063.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09851973

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2009851973

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2009851973

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE