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1. WO2017063069 - A COMPUTER-IMPLEMENTED METHOD FOR REDUCING CROSSTALK IN A COMPUTER-BASED AUDIOMETER

Publication Number WO/2017/063069
Publication Date 20.04.2017
International Application No. PCT/CA2016/000249
International Filing Date 06.10.2016
IPC
G10L 21/0208 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
0208Noise filtering
A61B 5/12 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
12Audiometering
G10L 21/0224 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
0208Noise filtering
0216characterised by the method used for estimating noise
0224Processing in the time domain
CPC
A61B 2505/09
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2505Evaluating, monitoring or diagnosing in the context of a particular type of medical care
09Rehabilitation or training
A61B 2560/0223
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2560Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
02Operational features
0223of calibration, e.g. protocols for calibrating sensors
A61B 2560/0406
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2560Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
04Constructional details of apparatus
0406specially shaped apparatus housings
A61B 5/121
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
12Audiometering ; Evaluation or the auditory system, not limited to hearing capacity
121evaluating hearing capacity
A61B 5/6815
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6801specially adapted to be attached to or worn on the body surface
6813Specially adapted to be attached to a specific body part
6814Head
6815Ear
A61B 5/7275
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7271Specific aspects of physiological measurement analysis
7275Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
Applicants
  • CLEARWATER CLINICAL LIMITED [CA]/[CA]
Inventors
  • BROMWICH, Matthew
  • JOURDAN, Guy-Vincent
  • BROMWICH, Julian
  • KOIVIKKO, Heikki
Agents
  • ANTICIPATE LAW
Priority Data
2,908,89115.10.2015CA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A COMPUTER-IMPLEMENTED METHOD FOR REDUCING CROSSTALK IN A COMPUTER-BASED AUDIOMETER
(FR) PROCÉDÉ MIS EN ŒUVRE PAR ORDINATEUR POUR RÉDUIRE LA DIAPHONIE DANS UN AUDIOMÈTRE INFORMATISÉ
Abstract
(EN)
A computer-implemented method for reducing undesired crosstalk signals on an inactive channel of a device comprising the steps of: (i) determining system volume levels and associated signal amplitudes required to achieve a range of desired audio output attenuation levels on an active channel of the device; (ii) determining a crosstalk compensation signal comprising a signal amplitude and associated phase shift required to reduce undesired crosstalk on the inactive channel of the device for each desired audio output attention level in the range of desired audio output attenuation levels; and (iii) generating a desired audio output attenuation level on the active channel of the device by generating a signal at the determined system volume level and associated signal amplitude required to achieve said desired audio output attenuation level, and generating a contemporaneous crosstalk compensation signal on the inactive channel of the device by generating a signal at the determined signal amplitude and associated phase shift required to reduce the undesired crosstalk on the inactive channel.
(FR)
L'invention concerne un procédé mis en œuvre par ordinateur pour réduire des signaux de diaphonie indésirable sur un canal inactif d'un dispositif, comprenant les étapes suivantes : (i) déterminer des niveaux de volume de système et des amplitudes de signal associées nécessaires pour obtenir une plage de niveaux d'atténuation de sortie audio souhaités sur un canal actif du dispositif ; (ii) déterminer un signal de compensation de diaphonie comprenant une amplitude de signal et un décalage de phase associé nécessaires pour réduire une diaphonie indésirable sur le canal inactif du dispositif pour chaque niveau d'atténuation de sortie audio souhaité dans la plage de niveaux d'atténuation de sortie audio souhaités ; et (iii) générer un niveau d'atténuation de sortie audio souhaité sur le canal actif du dispositif en générant un signal au niveau de volume de système déterminé et à l'amplitude de signal associée déterminée nécessaires pour obtenir ledit niveau d'atténuation de sortie audio souhaité, et générer un signal de compensation de diaphonie simultané sur le canal inactif du dispositif en générant un signal à l'amplitude de signal déterminée et au décalage de phase associé déterminé nécessaires pour réduire la diaphonie indésirable sur le canal inactif.
Also published as
Latest bibliographic data on file with the International Bureau