IT1271240B - Metodo e sistema psicoacustico di codifica del segnale audio - Google Patents
Metodo e sistema psicoacustico di codifica del segnale audioInfo
- 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
Links
- 230000005236 sound signal Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000004458 analytical method Methods 0.000 abstract 1
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)
- 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.
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)
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 |
-
1994
- 1994-10-04 IT ITMI942015A patent/IT1271240B/it active IP Right Grant
-
1995
- 1995-09-29 AU AU38027/95A patent/AU3802795A/en not_active Abandoned
- 1995-09-29 WO PCT/EP1995/003866 patent/WO1996010870A1/en active Application Filing
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 |
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