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1. WO2020200595 - SIGNAL PROCESSING

Publication Number WO/2020/200595
Publication Date 08.10.2020
International Application No. PCT/EP2020/055271
International Filing Date 28.02.2020
IPC
G10L 21/003 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
003Changing voice quality, e.g. pitch or formants
G10L 21/0316 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02Speech enhancement, e.g. noise reduction or echo cancellation
0316by changing the amplitude
G10L 25/21 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25Speech or voice analysis techniques not restricted to a single one of groups G10L15/-G10L21/129
03characterised by the type of extracted parameters
21the extracted parameters being power information
H03G 7/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
7Volume compression or expansion in amplifiers
H03G 5/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
5Tone control or bandwidth control in amplifiers
H03G 9/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
9Combinations of two or more types of control, e.g. gain control and tone control
CPC
G10L 21/003
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
003Changing voice quality, e.g. pitch or formants
G10L 21/0316
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02Speech enhancement, e.g. noise reduction or echo cancellation
0316by changing the amplitude
G10L 25/21
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25Speech or voice analysis techniques not restricted to a single one of groups G10L15/00-G10L21/00
03characterised by the type of extracted parameters
21the extracted parameters being power information
G11B 27/031
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
27Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
031Electronic editing of digitised analogue information signals, e.g. audio or video signals
H03G 5/00
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
5Tone control or bandwidth control in amplifiers
H03G 7/00
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
7Volume compression or expansion in amplifiers
Applicants
  • SONY CORPORATION [JP]/[JP]
  • SONY EUROPE B.V. [NL]/[GB] (AL)
Inventors
  • DERUTY, Emmanuel
Agents
  • TURNER, James Arthur
Priority Data
19166344.229.03.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SIGNAL PROCESSING
(FR) TRAITEMENT DE SIGNAL
Abstract
(EN)
A signal processing method comprises comparing a first frequency domain representation of a sequence of power values for respective windows of source input samples of a source input signal with a second frequency domain representation of a sequence of power values for respective windows of target input samples of a target input signal so as to generate a frequency domain difference representation; inverse-frequency-transforming the frequency domain difference representation to generate a modification indication; and applying the modification indication to the source input samples to generate respective output samples of an output signal.
(FR)
La présente invention concerne un procédé de traitement de signal qui consiste à comparer une première représentation de domaine de fréquence d'une séquence de valeurs de puissance pour des fenêtres respectives d'échantillons d'entrée de source d'un signal d'entrée de source à une seconde représentation de domaine de fréquence d'une séquence de valeurs de puissance pour des fenêtres respectives d'échantillons d'entrée cibles d'un signal d'entrée cible de façon à générer une représentation de différence de domaine de fréquence; transformer en fréquence inverse la représentation de différence de domaine de fréquence pour générer une indication de modification; et appliquer l'indication de modification aux échantillons d'entrée de source pour générer des échantillons de sortie respectifs d'un signal de sortie.
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