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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

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/66—Details 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
    • H04B1/665—Details 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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (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
ITMI942015A0 (it) 1994-10-04
AU3802795A (en) 1996-04-26
WO1996010870A1 (en) 1996-04-11
ITMI942015A1 (it) 1996-04-04

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Legal Events

Date Code Title Description
0001 Granted