Vocal acoustic attenuation
AssigneeBlackBox Biometrics, Inc.
InventorsAngela D'ORAZIO, David A. BORKHOLDER, Scott J. FEATHERMAN
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Abstract
Systems and methods to provide vocal acoustic attenuation for an acoustic sensor are disclosed, comprising attenuating an acoustic signal using an attenuation material covering at least a portion of a first surface of the acoustic sensor.
Claims20
A vocal acoustic attenuation system configured to provide data privacy and data security by monitoring exposure to acoustic or impulse events without recording audible human speech, the system comprising:
- an acoustic sensor;
- a dosimeter circuit configured to monitor exposure to acoustic or impulse events using an output of the acoustic sensor;
- and
- an attenuation material,
- configured to physically attenuate an acoustic signal prior to reaching the acoustic sensor such that the acoustic sensor does not record audible human speech.
A vocal acoustic attenuation apparatus for acoustic monitoring without recording audible human speech, comprising:
- an acoustic sensor having a sound port in a first surface, the acoustic sensor having a noise floor below 35 dB;
- and
- an attenuation material secured to the first surface and covering the sound port;
- and
- wherein the attenuation material is configured to attenuate a vocal audible decibel range below 90 dB to a range below the noise floor prior to acoustic signals reaching the sound port, such that an attenuated vocal audible signal in the vocal audible range would be indiscernible from noise.
A method for monitoring exposure to acoustic or impulse events without recording audible human speech to provide data privacy and data security, the method comprising:
- monitoring, using a dosimeter circuit, exposure to acoustic or impulse events using information from an acoustic sensor;
- and
- physically attenuating an acoustic signal prior to reaching the acoustic sensor using an attenuation material, such that the acoustic sensor does not record audible human speech.
Dependencies are inferred from the claim text.