Patent classifications
H04R2410/07
SYSTEM AND METHOD FOR GENERATING A SELF-STEERING BEAMFORMER
A system and method for generating a self-steering beamformer is provided. Embodiments may include receiving, at one or more microphones, a first audio signal and adapting one or more blocking filters based upon, at least in part, the first audio signal. Embodiments may also include generating, using the one or more blocking filters, one or more noise reference signals. Embodiments may further include providing the one or more noise reference signals to an adaptive interference canceller to reduce a beamformer output power level.
Apparatus for and method of wind detection
A method, comprising: obtaining one or more accelerometer signals derived from an accelerometer; and determining one or more parameters of wind at the accelerometer based on the one or more accelerometer signals.
Audio system and method
An audio processing system and method are described. A microphone is arranged to generate a microphone output signal responsive to an acoustic input. A speaker is arranged to generate an acoustic output responsive to a speaker input signal and to generate a speaker output signal responsive to the acoustic input. A wind noise detector is arranged to receive and process the microphone output signal and/or the speaker output signal to detect wind noise. A signal processor is arranged to receive the microphone output signal and is configured to process the speaker output signal when wind noise has been detected. The microphone output signal is modified using a result of processing the speaker output signal to reduce the amount of wind noise in a processed audio signal output by the signal processor.
Waterproof molded membrane for microphone
A boot is used to cover an inlet of a microphone of an auditory prosthesis. The boot prevents water, sweat, and other debris from damaging the microphone or entering the prosthesis housing. Additionally, the boot can include structure that helps dampen vibrations within the auditory prosthesis, thus improving microphone performance.
System and method for wind detection and suppression
In one embodiment, a pickup system includes a wind detector and a wind suppressor. The wind detector has a plurality of analyzers each configured to analyze first and second input signals, and a combiner configured to combine outputs of the plurality of analyzers and issue, based on the combined outputs, a wind level indication signal indicative of wind activity. The analyzers can be selected from a group of analyzers including a spectral slope analyzer, a ratio analyzer, a coherence analyzer, a phase variance analyzer and the like. The wind suppressor has a ratio calculator configured to generate a ratio of the first and second input signals, and a mixer configured to select one of the first or second input signals and to apply to the selected input signal one of first or second panning coefficients based on the wind level indication signal and on the ratio.
Information processing system, non-transitory storage medium storing program, and information processing method
An information processing system includes: a plurality of vehicles; and a server configured to communicate with the plurality of vehicles, wherein each of the plurality of vehicles is configured to detect wind information by using a wind detection device mounted on each of the plurality of vehicles, and send probe data to the server, the probe data including the wind information and position information on each of the plurality of vehicles at a time when the wind information was detected, and the server is configured to store the probe data received from the plurality of vehicles in a database, and provide information to a client by using the probe data stored in the database.
UNMANNED AERIAL VEHICLE, CONTROL METHOD, AND RECORDING MEDIUM
Unmanned aerial vehicle includes a microphone which picks up a sound emitted by a target, an actuator which extends to change a position of the microphone, and a processor. The processor obtains positional relationship information which indicates at least one of a position of the target or a distance from the unmanned aerial vehicle to the target, causes the unmanned aerial vehicle to move to a first position at which the unmanned aerial vehicle and the target have a predetermined positional relationship based on the positional relationship information, and causes actuator to extend toward the target after unmanned aerial vehicle moves to the first position.
Personal Audio Device
A personal audio device configured to be worn on the head or body of a user and including a plurality of microphones configured to provide a plurality of separate microphone signals capturing audio from an environment external to the personal audio device, and a processor configured to process a first subset of the plurality of separate microphone signals using a first array processing technique to provide a first array signal, compare the first array signal to a microphone signal from the plurality of separate microphone signals, and select the first array signal or the microphone signal based on the comparison.
Multi-port wind noise protection system and method
A system method provides for multi-port wind noise protection. A sound may include a desired component such as speech and an undesired component such as wind. Multiple apertures on a housing receive the sound and conduct it to a microphone. The undesired component such as wind is uncorrelated at the apertures and mixes at the microphone, attenuating in amplitude while the desired component such as speech is correlated at the apertures. In this manner, the signal to noise ratio between the desired component and undesired component is improved at the microphone.
WIND NOISE REDUCTION BY MICROPHONE PLACEMENT
An image capture device includes a housing having a lens snout protruding from a front housing surface. A front microphone is mounted below the lens snout. A top microphone is mounted under a top housing surface. The top microphone is positioned to receive direct freestream air flow at a first pitched forward angle. The front microphone is positioned to receive turbulent air flow at a second pitched forward angle. The second pitched forward angle is greater than or equal to the first pitched forward angle. An audio processor receives a first audio signal and a second audio signal from the top microphone and front microphone, respectively. The audio processor generates frequency sub-bands from the first and second audio signals. The audio processor selects the frequency sub-bands with the lowest noise metric and combines them to generate an output audio signal.