Systems and methods for distinguishing valid voice commands from false voice commands in an interactive media guidance application. In some aspects, the interactive media guidance application receives, at a user device, a signature sound sequence. The interactive media guidance application determines, using control circuitry, based on the signature sound sequence, a threshold gain for the current location of the user device. The interactive media guidance application receives, at the user device, a voice command. The interactive media guidance application determines, using the control circuitry, based on the voice command, a gain for the voice command. The interactive media guidance application determines, using the control circuitry, whether the gain for the voice command is different from the threshold gain. Based on determining that the gain for the voice command is different from the threshold gain, the interactive media guidance application executes, using the control circuitry, the voice command.

An embodiment of the disclosure relates to a method of detecting the location of a user located in a vehicle, the method including performing pairing between a mobile device of the user and the vehicle, outputting a plurality of sound wave signals respectively from a plurality of speakers located in the vehicle, the plurality of sound wave signal being different from each other in at least one of a frequency band and a time period, and obtaining user location information which is information about a user location detected based on an audio signal received by the mobile device in correspondence to the plurality of sound wave signals.

A condenser microphone with at least two microphone capsules, each including a diaphragm and a backplate. The backplates of both the first capsule and second capsule having an electret bias. The first capsule having a first polar pattern, and the second capsule having a second polar pattern. The second capsule having an external voltage bias that is continuously variable over a certain voltage range. This external voltage bias can be applied to the second diaphragm or second backplate. The microphone's total polar pattern consists of a combination of the first polar pattern and the second polar pattern. Using the external voltage bias of the second capsule, the microphone's total polar pattern is continuously variable throughout a range set by the external voltage bias.

Embodiments include an audio system comprising a plurality of microphones disposed in an environment, wherein the plurality of microphones is configured to detect one or more audio sources, and generate location data indicating a location of each of the one or more audio sources relative to the plurality of microphones; and at least one processor communicatively coupled to the plurality of microphones, wherein the at least one processor is configured to receive the location data from the plurality of microphones, and define a plurality of audio pick-up regions in the environment based on the location data, the plurality of audio pick-up regions comprising a first audio pick-up region and a second audio pick-up region, wherein the plurality of microphones are configured to deploy a first lobe within the first audio pick-up region and a second lobe within the second audio pick-up region.

An electronic device, computer program product, and method manage presenting and pausing of media content in response to locally detected visual and aural interruptions. The electronic device is configured to determine, using one or more sensors from among: (i) an image capturing device positioned to have a field of view of a monitored area and (ii) a microphone positioned to detect sounds in or near the monitored area. A consumer is in the monitored area during presenting of media content by a media output device. The electronic device is configured to monitor the one or more sensors to determine whether an interruption is occurring that can degrade consumer experience relative to the presenting of the media content. In response to determining that the interruption is occurring, the electronic device is configured to pause the presenting of the media content on the media output device.

The invention relates to a variable-directivity MEMS microphone. The microphone comprises an acoustic cavity. The following components are provided inside the acoustic cavity: a first acoustic transducer for detecting an acoustic signal and converting the acoustic signal into a first acoustic conversion signal; a first pre-amplifier, connected to the first acoustic transducer, and configured for outputting a first electric signal; a second acoustic transducer for detecting an acoustic signal and converting the acoustic signal into a second acoustic conversion signal; a second pre-amplifier, connected to the second acoustic transducer, and configured for outputting a second electric signal; and a signal processing chip, connected to the first pre-amplifier and the second pre-amplifier, and configured for generating a directional output signal by performing an arithmetic operation on the first electric signal and the second electric signal under the action of a switching control signal.

Provided is a microphone, including a base having a back cavity, a diaphragm, a backplate electrode, and a backplate spaced from the diaphragm and defining an inner cavity jointly with the diaphragm. The diaphragm includes a vibration portion, a fixing portion, and a leak hole. The back cavity is communicated with the inner cavity through the leak hole. The backplate is provided with a first through hole. The inner cavity is communicated with outside through the first through hole. The backplate includes a backplate body and a backplate extension portion. The inner cavity includes a first inner cavity and a second inner cavity. The backplate extension portion is provided with a second through hole, and the second inner cavity is communicated with outside through the second through hole. A method for manufacturing the microphone is further provided. The technical solution has better drop performance.

Systems, methods, and apparatus for corona detection using audio data are provided. In one example embodiment, the method includes obtaining, by one or more computing devices, audio data indicative of audio associated with an electrical system for at least one time interval. The method includes partitioning, by the one or more computing devices, the audio data for the time interval into a plurality of time windows. The method includes determining, by the one or more computing devices, a signal indicative of a presence of corona based at least in part on audio data collected within an identified time window of the plurality of time windows relative to audio data collected for a remainder of the time interval.

A microphone may comprise a microphone element for detecting sound, and a digital signal processor configured to process a first audio signal that is based on the sound in accordance with a selected one of a plurality of digital signal processing (DSP) modes. Each of the DSP modes may be for processing the first audio signal in a different way. For example, the DSP modes may account for distance of the person speaking (e.g., near versus far) and/or desired tone (e.g., darker, neutral, or bright tone). At least some of the modes may have, for example, an automatic level control setting to provide a more consistent volume as the user changes their distance from the microphone or changes their speaking level, and that may be associated with particular default (and/or adjustable) values of the parameters attack, hold, decay, maximum gain, and/or target gain, each depending upon which DSP is being applied.

An audio recording apparatus provided with a heat radiation fan comprises at least one processor and/or circuit configured to function as following units: an acquiring unit configured to acquire a type of microphone used to record audio; a control unit configured to control a rotation frequency for driving the heat radiation fan; and a recording unit configured to record audio acquired by the used microphone, wherein the control unit changes the rotation frequency of the heat radiation fan according to the type of the used microphone acquired by the acquiring unit.