Nothing Special   »   [go: up one dir, main page]

IT1271240B - Metodo e sistema psicoacustico di codifica del segnale audio - Google Patents

Metodo e sistema psicoacustico di codifica del segnale audio

Info

Publication number
IT1271240B
IT1271240B ITMI942015A ITMI942015A IT1271240B IT 1271240 B IT1271240 B IT 1271240B IT MI942015 A ITMI942015 A IT MI942015A IT MI942015 A ITMI942015 A IT MI942015A IT 1271240 B IT1271240 B IT 1271240B
Authority
IT
Italy
Prior art keywords
audio signal
coding method
signal coding
information
exploits
Prior art date
Application number
ITMI942015A
Other languages
English (en)
Inventor
Giorgio Parladori
Gian Antonio Mian
Renato Andreola
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 ITMI942015A priority Critical patent/IT1271240B/it
Publication of ITMI942015A0 publication Critical patent/ITMI942015A0/it
Priority to AU38027/95A priority patent/AU3802795A/en
Priority to PCT/EP1995/003866 priority patent/WO1996010870A1/en
Publication of ITMI942015A1 publication Critical patent/ITMI942015A1/it
Application granted granted Critical
Publication of IT1271240B publication Critical patent/IT1271240B/it

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La presente invenzione si riferisce ad un metodo e ad un sistema psicoacustico per la codifica del segnale audio che sfrutta le caratteristiche percettive del sistema uditivo umano.In particolare, il sistema si basa su un metodo di analisi che permette di evidenziare le caratteristiche del segnale audio che risultino essere percettivamente significative.Tale informazione, secondo un aspetto del trovato, può essere sfruttata per comprimere l'informazione contenuta nel suddetto segnale allo scopo di poterla trasmettere in modo efficiente.
ITMI942015A 1994-10-04 1994-10-04 Metodo e sistema psicoacustico di codifica del segnale audio IT1271240B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI942015A IT1271240B (it) 1994-10-04 1994-10-04 Metodo e sistema psicoacustico di codifica del segnale audio
AU38027/95A AU3802795A (en) 1994-10-04 1995-09-29 Psychoacoustic audio-signal coding system and method
PCT/EP1995/003866 WO1996010870A1 (en) 1994-10-04 1995-09-29 Psychoacoustic audio-signal coding system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI942015A IT1271240B (it) 1994-10-04 1994-10-04 Metodo e sistema psicoacustico di codifica del segnale audio

Publications (3)

Publication Number Publication Date
ITMI942015A0 ITMI942015A0 (it) 1994-10-04
ITMI942015A1 ITMI942015A1 (it) 1996-04-04
IT1271240B true IT1271240B (it) 1997-05-27

Family

ID=11369642

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI942015A IT1271240B (it) 1994-10-04 1994-10-04 Metodo e sistema psicoacustico di codifica del segnale audio

Country Status (3)

Country Link
AU (1) AU3802795A (it)
IT (1) IT1271240B (it)
WO (1) WO1996010870A1 (it)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2751564B2 (ja) * 1990-05-25 1998-05-18 ソニー株式会社 ディジタル信号符号化装置
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置

Also Published As

Publication number Publication date
ITMI942015A1 (it) 1996-04-04
WO1996010870A1 (en) 1996-04-11
AU3802795A (en) 1996-04-26
ITMI942015A0 (it) 1994-10-04

Similar Documents

Publication Publication Date Title
DE69804478D1 (de) Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate
TR199701496T1 (xx) İnsan kulağı özelliklerinin kullanıldığı veri yayım sistemi.
EP0932141A3 (en) Method for signal controlled switching between different audio coding schemes
DE69923724D1 (de) Vorrichtung zur Codierung von Sprach- und Musiksignalen sowie Vorrichtung zur Decodierung
EP0998051A3 (en) Block size determination and adaptation method for audio transform coding
EP0951867A3 (en) Determining the presence of two breath sounds
SE0400417D0 (sv) Fidelety-optimised variable frame length encoding
AU2003206682A1 (en) Method for dynamic determination of time constants, method for level detection, method for compressing an electric audio signal and hearing aid, wherein the method for compression is used
CA2165229A1 (en) Method and Apparatus for Characterizing an Input Signal
ATE385025T1 (de) Parametrische darstellung von raumklang
ITTO920695A1 (it) Sistema di riconoscimento, particolarmente per il riconoscimento di persone.
CA2197128A1 (en) Enhanced Joint Stereo Coding Method Using Temporal Envelope Shaping
DE602007004061D1 (de) Abschätzung der eigenen Stimmaktivität mit einem Hörgerätsystem aufgrund des Verhältnisses zwischen Direktklang und Widerhall
DE69712836D1 (de) Vorrichtung und verfahren zur videosignalkodierung
DE59801343D1 (de) Verfahren und vorrichtung zum codieren eines zeitdiskreten stereosignals
HK1020101A1 (en) Method and device for coding an audio signal by "forward" and "backward" lpc analysis
AU2636899A (en) Emergency signaling or diagnostic device
IT1271240B (it) Metodo e sistema psicoacustico di codifica del segnale audio
EP0867862A3 (en) Coding and decoding system for speech and musical sound
EP0813183A3 (en) Speech reproducing system
DE69617564D1 (de) Taschenvorrichtung zur Detektion eines elektrischen, biologischen Signals, insbesondere eines elektrokardiographischen Signals
AU4627801A (en) Method for the elimination of noise signal components in an input signal for an auditory system, use of said method and hearing aid
DE60213405D1 (de) Wasserzeichen
WO2002005261A3 (en) Dynamic power sharing in a multi-channel sound system
ATE150609T1 (de) Verfahren zur verstärkung von akustischen signalen für hörbehinderte, sowie vorrichtung zur durchführung des verfahrens

Legal Events

Date Code Title Description
0001 Granted