IT1271959B - Codec per il parlato a predizione lineare eccitato da un libro di codici - Google Patents

Codec per il parlato a predizione lineare eccitato da un libro di codici

Info

Publication number
IT1271959B
IT1271959B ITMI930406A ITMI930406A IT1271959B IT 1271959 B IT1271959 B IT 1271959B IT MI930406 A ITMI930406 A IT MI930406A IT MI930406 A ITMI930406 A IT MI930406A IT 1271959 B IT1271959 B IT 1271959B
Authority
IT
Italy
Prior art keywords
codec
linear prediction
excited
book
speaking
Prior art date
Application number
ITMI930406A
Other languages
English (en)
Italian (it)
Inventor
Giorgio Parladori
Marco Fratti
Silvio Cucchi
Antonio Rotunno
Luca Ponte
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI930406A priority Critical patent/IT1271959B/it
Publication of ITMI930406A0 publication Critical patent/ITMI930406A0/it
Priority to DE69424960T priority patent/DE69424960T2/de
Priority to EP94103204A priority patent/EP0614075B1/de
Publication of ITMI930406A1 publication Critical patent/ITMI930406A1/it
Application granted granted Critical
Publication of IT1271959B publication Critical patent/IT1271959B/it

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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/002—Dynamic bit allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
ITMI930406A 1993-03-03 1993-03-03 Codec per il parlato a predizione lineare eccitato da un libro di codici IT1271959B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI930406A IT1271959B (it) 1993-03-03 1993-03-03 Codec per il parlato a predizione lineare eccitato da un libro di codici
DE69424960T DE69424960T2 (de) 1993-03-03 1994-03-03 Verfahren und Vorrichtung zur Sprachkodierung mit Trellis-kodierter Quantisierung für LPC- Quantisierung
EP94103204A EP0614075B1 (de) 1993-03-03 1994-03-03 Verfahren und Vorrichtung zur Sprachkodierung mit Trellis-kodierter Quantisierung für LPC- Quantisierung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI930406A IT1271959B (it) 1993-03-03 1993-03-03 Codec per il parlato a predizione lineare eccitato da un libro di codici

Publications (3)

Publication Number Publication Date
ITMI930406A0 ITMI930406A0 (it) 1993-03-03
ITMI930406A1 ITMI930406A1 (it) 1994-09-03
IT1271959B true IT1271959B (it) 1997-06-10

Family

ID=11365221

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI930406A IT1271959B (it) 1993-03-03 1993-03-03 Codec per il parlato a predizione lineare eccitato da un libro di codici

Country Status (3)

Country Link
EP (1) EP0614075B1 (de)
DE (1) DE69424960T2 (de)
IT (1) IT1271959B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3557255B2 (ja) * 1994-10-18 2004-08-25 松下電器産業株式会社 Ｌｓｐパラメータ復号化装置及び復号化方法
US6128346A (en) * 1998-04-14 2000-10-03 Motorola, Inc. Method and apparatus for quantizing a signal in a digital system
PL3125241T3 (pl) * 2014-03-28 2021-09-20 Samsung Electronics Co., Ltd. Sposób i urządzenie do kwantyzacji współczynnika predykcji liniowej oraz sposób i urządzenie do kwantyzacji odwrotnej
CN112927702A (zh) 2014-05-07 2021-06-08 三星电子株式会社 对线性预测系数量化的方法和装置及解量化的方法和装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US4975956A (en) * 1989-07-26 1990-12-04 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing

Also Published As

Publication number Publication date
DE69424960T2 (de) 2001-01-11
ITMI930406A1 (it) 1994-09-03
EP0614075A2 (de) 1994-09-07
EP0614075A3 (de) 1995-08-02
EP0614075B1 (de) 2000-06-21
ITMI930406A0 (it) 1993-03-03
DE69424960D1 (de) 2000-07-27

Similar Documents

Publication Publication Date Title
CN101494055B (zh) 用于码分多址无线系统的方法和装置
HK1132324A1 (en) Method and device for coding transition frames in speech signals
ES2529221T3 (es) Codificación de sonido con bajo retardo que alterna codificación predictiva y codificación por transformada
MX9602391A (es) Metodo y aparato para reproducir señales de conversacion y metodo para transmitirlas.
KR910700526A (ko) 고품질 오디오용 저속 비트 변환 코더, 디코더 및 인코더/디코더
ATE310304T1 (de) Lpc-harmonischer sprachkodierer mit überrahmenformat
FI962572A0 (fi) Hajautettu äänentunnistusjärjestelmä
DK0716787T3 (da) Spektral indhylningskodning med lav bithastighed og høj opløsning for audiokoder og dekoder
TR199501637A2 (tr) Bir ses sinyalini kodlamak icin yöntem.
CN1334952A (zh) 用于改善编码通信信号性能的编码增强特性
KR950704864A (ko) 차분 코팅 원리를 구현하는 전송 시스템(Transmission system impiementing dif-ferent coding principles)
WO2001015410A3 (en) Telephone terminal apparatus and communication method
DE60038279D1 (de) Beitband Sprachkodierung mit parametrischer Kodierung des Hochfrequenzanteils
SE9500452D0 (sv) Method and apparatus in coding digital information
DK1328927T3 (da) Fremgangsmåde og system til estimering af kunstigt höjbåndssignal i tale-codec
FI20000524A0 (fi) Puhedekooderi ja menetelmä puheen dekoodaamiseksi
IT1271959B (it) Codec per il parlato a predizione lineare eccitato da un libro di codici
JP2000209663A (ja) 音声チャネル上で非音声情報を送信する方法
ATE370496T1 (de) Telekommunikationsendgerät zur veränderung eines übertragenen sprachsignals bei einer bestehenden fernsprechverbindung
DE60027140D1 (de) Sprachsynthetisierer auf der basis von sprachkodierung mit veränderlicher bit-rate
PL1756806T3 (pl) Sposób kwantyzacji kodera mowy o bardzo małej przepływności
ATE368280T1 (de) Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben
JPS6033751A (ja) 符・復号器
Wang Speech coding
Atal From Vocoders to Code-Excited Linear Prediction: Learning How We Hear What We Hear.

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990226