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Sound processing apparatus

A sound processing and sound technology, applied in the direction of electrical digital data processing, input/output process of data processing, voice analysis, etc., can solve the problem of no classification accuracy, low performance of classification accuracy, and failure to give high reconstruction accuracy and other issues to achieve highly accurate encoding/decoding

Pending Publication Date: 2019-12-24
OTICON
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AI Technical Summary

Problems solved by technology

[0014] The main disadvantage of the prior art techniques is the low performance in terms of reconstruction accuracy (correlation coefficient), classification accuracy
Namely, in the prior art, there is no method that reliably maps speech to EEG data, i.e. no method that gives a high reconstruction accuracy (correlation coefficient)
Furthermore, no approach to 100% classification accuracy has been achieved so far in the state of the art

Method used

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Embodiment Construction

[0055] The detailed description given below with reference to the accompanying drawings serves as a description of a number of different configurations. The detailed description includes specific details to provide a thorough understanding of various concepts. It will be apparent, however, to one skilled in the art that these concepts may be practiced without these specific details. Several aspects of the apparatus and methods are described in terms of a number of different blocks, functional units, modules, elements, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). Depending on the particular application, design constraints, or other reasons, these elements may be implemented using electronic hardware, computer programs or any combination thereof.

[0056] Electronic hardware may include microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), gating l...

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Abstract

The application discloses a sound processing apparatus, wherein a speech classification apparatus (100) comprises a sound processing unit (10) configured to capture sound input signals (11) from at least one external microphone (15) and segment the captured sound input signals into segmented sound signals (17); a speech classification unit (20) comprising a speech cepstrum calculation unit (21) configured to calculate a speech cepstrum (14) for each segmented sound signal (17); an EEG cepstrum calculation unit (40) configured to calculate an EEG cepstrum (13) for an EEG signal (12) of a user'sbrain (220); a mapping unit (22) configured to select a predetermined number of coefficients from each calculated sound cepstrum (14) and from the calculated EEG cepstrum (13); and a correlation unit(23) configured to calculate a correlation value for each captured sound input signal (11) based on a correlation of the predetermined number of selected coefficients (13, 14) from the respective calculated sound cepstrum with the predetermined number of selected coefficients from the calculated EEG cepstrum, wherein an attended speech source is classified based on the obtained correlation values.

Description

technical field [0001] The present invention relates to a sound processing device for a hearing device, with brain wave dependent sound processing. More specifically, the present invention relates to hearing devices such as hearing aids, hearing instruments, listening devices, active ear protectors, headsets or headphones, which have sensors for measuring the brain waves of the user of the hearing device and based on the measured brain waves Wave adjustment sound processing. [0002] The invention can be used, for example, in the following applications: hearing aids for compensating the loss of hearing ability of hearing-impaired persons, listening devices for enhancing the hearing ability of normal-hearing persons, active ear protectors for protecting the human auditory system, A headset used to transmit electronic sound signals to the user, or a headset used to communicate with another person. Background technique [0003] A common challenge in the field of hearing devic...

Claims

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Application Information

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IPC IPC(8): G10L25/24G10L25/06G10L25/51H04R25/00
CPCG10L25/24G10L25/06G10L25/51H04R25/00H04R25/407G06F3/015G06F17/18G10L15/16G10L25/30
Inventor T·伦纳C·格拉弗森E·阿里科维克C·F·门多萨·劳拉A·塞格尔
Owner OTICON
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