Active Acoustic Filter with Automatic Selection of Filter Parameters Based on Ambient Sound
First Claim
Patent Images
1. An active acoustic filter system, comprising:
- a housing;
an active acoustic filter configured to convert ambient sound into digitized ambient sound, wherein the active acoustic filter comprises a microphone, a preamplifier, an analog to digital converter, a digital to analog converter, an amplifier, and a speaker that are disposed within the housing;
a memory storing one or more stored sound profiles and a respective set of processing parameters associated with each of the one or more stored sound profiles;
one or more processors, at least one of the one or more processors being enclosed by the housing and configured for communication with the memory, the at least one of the one or more processors being configured to;
analyze the digitized ambient sound to create an ambient sound profile;
determine whether or not the ambient sound profile matches one of the one or more stored sound profiles; and
when the one or more processors determines that the ambient sound profile does not match one of the one or more stored sound profiles, provide a user prompt either to establish one or more processing parameters or to retrieve processing parameters associated with a closest stored sound profile;
receive one or more user-established processing parameters;
generate digitized processed sound by processing the digitized ambient sound in accordance with the one or more user-established processing parameters that adjust one or more decibel levels associated with frequency ranges of the digitized ambient sound, wherein the active acoustic filter is configured to convert the digitized processed sound into processed output sound.
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Abstract
Active acoustic filter systems and methods are disclosed. An active acoustic filter system includes a memory storing one or more stored sound profiles and a respective set of processing parameters associated with each of the one or more stored sound profiles. A processor coupled to the memory generates processed sound by processing ambient sound in accordance with a set of processing parameters retrieved from the memory based on results from comparing an ambient sound profile to at least one of the one or more stored sound profiles.
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Citations
21 Claims
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1. An active acoustic filter system, comprising:
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a housing; an active acoustic filter configured to convert ambient sound into digitized ambient sound, wherein the active acoustic filter comprises a microphone, a preamplifier, an analog to digital converter, a digital to analog converter, an amplifier, and a speaker that are disposed within the housing; a memory storing one or more stored sound profiles and a respective set of processing parameters associated with each of the one or more stored sound profiles; one or more processors, at least one of the one or more processors being enclosed by the housing and configured for communication with the memory, the at least one of the one or more processors being configured to; analyze the digitized ambient sound to create an ambient sound profile; determine whether or not the ambient sound profile matches one of the one or more stored sound profiles; and when the one or more processors determines that the ambient sound profile does not match one of the one or more stored sound profiles, provide a user prompt either to establish one or more processing parameters or to retrieve processing parameters associated with a closest stored sound profile; receive one or more user-established processing parameters; generate digitized processed sound by processing the digitized ambient sound in accordance with the one or more user-established processing parameters that adjust one or more decibel levels associated with frequency ranges of the digitized ambient sound, wherein the active acoustic filter is configured to convert the digitized processed sound into processed output sound. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 21)
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5. (canceled)
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13. A method, comprising:
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converting ambient sound into digitized ambient sound; storing, in a memory, one or more stored sound profiles and a respective set of processing parameters associated with each of the one or more stored sound profiles; analyzing the digitized ambient sound to create an ambient sound profile; determining whether or not the ambient sound profile matches one of the one or more stored sound profiles; and when the ambient sound profile does not match one of the one or more stored sound profiles; providing a user prompt either to establish one or more processing parameters or to retrieving processing parameters associated with a closest stored sound profile; receive one or more user-established processing parameters; generating, by the processor, the digitized processed sound by processing the digitized ambient sound in accordance with the one or more user-established processing parameters that adjust one or more decibel levels associated with frequency ranges of the digitized ambient sound; and convert the digitized processed sound into processed output sound. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A computer program product, the computer program product being embodied in a tangible non-transitory computer readable storage medium and comprising computer instructions for:
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converting ambient sound into digitized ambient sound; storing, in a memory, one or more stored sound profiles and a respective set of processing parameters associated with each of the one or more stored sound profiles; analyzing the digitized ambient sound to create an ambient sound profile; determining whether or not the ambient sound profile matches one of the one or more stored sound profiles; and when the ambient sound profile does not match one of the one or more stored sound profiles; providing a user prompt either to establish one or more processing parameters or to retrieving processing parameters associated with a closest stored sound profile; receive one or more user-established processing parameters; generating, by the processor, the digitized processed sound by processing the digitized ambient sound in accordance with the one or more user-established processing parameters that adjust one or more decibel levels associated with frequency ranges of the digitized ambient sound; and convert the digitized processed sound into processed output sound.
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Specification