Selective amplification of an acoustic signal
First Claim
1. A system comprising:
- an audio engine configured to compare frequency ranges obtained via a Kalman analysis for each of a plurality of acoustic signals having frequency ranges that determine a presence of an individual in a closed environment; and
an amplification engine configured to, in response to a target signal indicative of a pre-defined keyword utterance, amplify the target signal within the closed environment and generate an interfering signal to cancel other acoustic signals.
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Abstract
The present subject matter relates to systems and methods for selectively amplifying an acoustic signal in a closed environment. In an implementation, a plurality of acoustic signals may be received from within the closed environment. Frequency ranges corresponding to each acoustic signal may be obtained and compared to determine presence of at least one individual in the closed environment. Acoustic signals pertaining to the at least one individual may be analysed to detect occurrence of a physiological event. Based on the analysis, the acoustic signal may be recognized as a target signal, and the target signal may be amplified in the closed environment. Further, an interfering signal may be generated to cancel other acoustic signals within the closed environment.
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Citations
15 Claims
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1. A system comprising:
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an audio engine configured to compare frequency ranges obtained via a Kalman analysis for each of a plurality of acoustic signals having frequency ranges that determine a presence of an individual in a closed environment; and an amplification engine configured to, in response to a target signal indicative of a pre-defined keyword utterance, amplify the target signal within the closed environment and generate an interfering signal to cancel other acoustic signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method to amplify acoustic signals comprising;
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comparing, via an audio engine implementing a Kalman analysis, frequency ranges of acoustic signals pertaining to an individual; analyzing, by an amplification engine, the acoustic signals to detect a target signal indicative of a physiological event having a pre-defined frequency range in the closed environment; recognizing the target signal; amplifying the target signal within the closed environment; and cancelling other acoustic signals in the closed environment. - View Dependent Claims (9, 10)
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11. A vehicle infotainment system, comprising:
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a processor configured to, receive, in real-time, a plurality of acoustic signals from within a closed environment; compare, using a Kalman analysis, frequency ranges of acoustic signals pertaining to an individual; analyze acoustic signals pertaining to at least one individual from the plurality of acoustic signals to detect occurrence of a physiological event being one of an utterance of a pre-defined keyword and an occurrence of a pre-defined frequency range in the acoustic signals in the closed environment; based on the analysis, select an acoustic signal corresponding to the at least one individual as a target signal, wherein the target signal is indicative of the acoustic signal triggering the physiological event; amplify the target signal within the closed environment, based on the identification; and generate an interfering signal to cancel other acoustic signals amongst the plurality of acoustic signals. - View Dependent Claims (12, 13, 14, 15)
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Specification