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1. WO2011031273 - SYSTEM FOR ADAPTIVE VOICE INTELLIGIBILITY PROCESSING

Publication Number WO/2011/031273
Publication Date 17.03.2011
International Application No. PCT/US2009/056850
International Filing Date 14.09.2009
IPC
G06F 15/16 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
15Digital computers in general; Data processing equipment in general
16Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
CPC
G10L 2021/02082
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
0208Noise filtering
02082the noise being echo, reverberation of the speech
G10L 21/0232
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
0208Noise filtering
0216characterised by the method used for estimating noise
0232Processing in the frequency domain
G10L 21/0364
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
0364for improving intelligibility
H03G 3/32
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers ; without distortion of the input signal
20Automatic control
30in amplifiers having semiconductor devices
32the control being dependent upon ambient noise level or sound level
Applicants
  • SRS LABS, INC [US]/[US] (AllExceptUS)
  • YANG, Jun [US]/[US] (UsOnly)
  • OLIVER, Richard, J. [US]/[US] (UsOnly)
  • TRACEY, James [US]/[US] (UsOnly)
  • HE, Xing [CN]/[US] (UsOnly)
Inventors
  • YANG, Jun
  • OLIVER, Richard, J.
  • TRACEY, James
  • HE, Xing
Agents
  • KING, John, R.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM FOR ADAPTIVE VOICE INTELLIGIBILITY PROCESSING
(FR) SYSTÈME DE TRAITEMENT ADAPTATIF D'INTELLIGIBILITÉ VOCALE
Abstract
(EN) An adaptive audio system can be implemented in a communication device. The adaptive audio system can enhance voice in an audio signal received by the communication device to increase intelligibility of the voice. The audio system can adapt the audio enhancement based at least in part on levels of environmental content, such as noise, that are received by the communication device. For higher levels of environmental content, for example, the audio system might appiy the audio enhancement more aggressively. Additionally, the adaptive audio system can detect substantially periodic content in the environmental content. The adaptive audio system can further adapt the audio enhancement responsive to the environmental content.
(FR) L'invention porte sur un système audio adaptatif qui peut être mis en œuvre dans un dispositif de communication. Le système audio adaptatif peut accentuer la voix dans un signal audio reçu par le dispositif de communication afin d'augmenter l'intelligibilité de la voix. Le système audio peut adapter l'accentuation audio sur la base au moins en partie de niveaux de contenu ambiant, tel que du bruit, qui sont reçus par le dispositif de communication. Pour de plus haut niveaux de contenu ambiant, par exemple, le système audio peut appliquer l'accentuation audio de façon plus agressive. De plus, le système audio adaptatif peut détecter un contenu sensiblement périodique dans le contenu ambiant. Le système audio adaptatif peut en outre adapter l'accentuation audio en réponse au contenu ambiant.
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