Wearable hearing assist device with sound pressure level shifting
AssigneeBose Corporation
InventorsAndrew Todd Sabin, Daniel M. Gauger, Jr., Andrew Jackson Stockton X, Darrin Kiyoshi Reed
Life of this patent
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Abstract
Various implementations include hearing assist devices and systems for processing audio signals. In particular implementations, a process includes receiving an input signal via a microphone; performing a sound pressure level (SPL) shift that decreases a gain of the input signal to generate a gain reduced audio signal; amplifying the gain reduced audio signal using dynamic range compression to generate an amplified audio signal; generating a noise reduced amplified signal using active noise reduction that simultaneously processes the input signal; and outputting the noise reduced amplified signal to an electrodynamic transducer.
Claims20
A method for processing signals in a hearing assistance device, the method comprising:
- receiving an input signal via a microphone;
- performing a sound pressure level (SPL) shift that decreases a gain of the input signal to generate a gain reduced audio signal;
- amplifying the gain reduced audio signal using dynamic range compression to generate an amplified audio signal;
- generating a noise reduced signal using active noise reduction that simultaneously processes the input signal;
- and
- combining the noise reduced signal with the amplified audio signal.
A hearing assistance device, comprising:
- a microphone;
- an electrodynamic
- transducer;
- a
- memory;
- and
- a processor configured to execute instructions from the memory to process audio signals for the hearing assistance device, wherein the instructions cause the processor to:
- receive an input signal via a microphone;
- perform a sound pressure level (SPL) shift that decreases a gain of the input signal to generate a gain reduced audio signal;
- amplify the gain reduced audio signal using dynamic range compression to generate an amplified audio signal;
- generate a noise reduced signal using active noise reduction that simultaneously processes the input signal;
- and
- combine the noise reduced signal with the amplified audio signal and outputting a combined signal to the electrodynamic transducer.
A method for processing signals in a hearing assistance device, the method comprising:
- receiving an input signal via a microphone;
- performing a sound pressure level (SPL) shift with a broadband gain reduction that decreases a gain of the input signal to generate a gain reduced audio signal;
- amplifying the gain reduced audio signal using dynamic range compression to generate an amplified audio signal;
- generating a noise reduced signal using active noise reduction that simultaneously processes the input signal;
- and
- combining the noise reduced signal with the amplified audio signal.
Dependencies are inferred from the claim text.