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DEVICE AND METHOD OF INCREASING CONVERGENCE OF SPEECH FOR RESPIRATORY MASK
DEVICE AND METHOD OF INCREASING CONVERGENCE OF SPEECH FOR RESPIRATORY MASK
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机译：增加呼吸面具言语汇聚的装置和方法
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摘要
FIELD: items for personal use.;SUBSTANCE: respiratory mask contains a mask body, designed to create a clean air space between the mask, mouth, and nose of the user. The mask body is capable of attenuating the acoustic energy passing through the respiratory mask in one or more frequency ranges of the mask user's speech. The speech intelligibility device comprises a microphone configured to be attached to the mask body. The microphone is further designed to sense acoustic energy inside a clean airspace, being attached to the mask body. The speaker is designed to emit acoustic energy outside clean airspace. A controller operatively connected to a speaker and a microphone, wherein the controller is adapted to receive a speech signal from the microphone. The speech signal carries signs of acoustic energy perceived by the microphone within the first frequency range and delivering the output signal to the speaker to compensate for the attenuation of the acoustic energy passing through the respiratory mask. The output signal is configured to cause the speaker to generate a compensating acoustic energy. The compensating acoustic energy is emitted in one or more ranges of attenuated frequencies covering less than all of the said first frequency range in which one or more of the predetermined frequency bands are selected in accordance with one or more attenuated mask ranges of the user's voice of the mask. The compensating acoustic energy has a predetermined amplitude attenuation profile in each predetermined range of attenuated frequencies from one or more predetermined ranges of attenuated frequencies.;EFFECT: increasing the speech intelligibility.;22 cl, 6 dwg
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