The present disclosure provides a microphone apparatus. The microphone apparatus may include a microphone and a vibration sensor. The microphone may be configured to receive a first signal including a voice signal and a first vibration signal. The vibration sensor may be configured to receive a second vibration signal. And the microphone and the vibration sensor are configured such that the first vibration signal may be offset with the second vibration signal.

There is provided an information processing device, an information processing method, and a program that can suppress hindrance to viewing/listening to content. A control unit controls output of a tactile stimulus in a case where notification information is received during output of content including sound. Further, the control unit performs a process of controlling the tactile stimulus in response to the content or a process of controlling the content in response to the tactile stimulus. The present technology can be applied to, for example, a mobile device such as a smartphone and the like capable of reproducing content including sound.

An active noise reduction device includes: an impulsive signal generator that generates an impulsive signal; a signal output unit that outputs the impulsive signal to a loudspeaker; a signal detector that detects a rising signal and a falling signal from a microphone signal outputted from a microphone collecting sound; a connection determiner that determines, based on respective peak values of the rising signal detected and the falling signal detected, whether or not the loudspeaker is connected to the signal output unit; and a polarity determiner that determines a connection polarity between the loudspeaker and the signal output unit based on respective timings of the rising signal and the falling signal with respect to the impulsive signal, when it is determined that the loudspeaker is connected to the signal output unit.

An additive manufacturing device for reducing vibrational sounds produced during an evacuation process includes a shaker connected to a build area of the additive manufacturing device, the shaker to vibrate the build area during the evacuation process to separate fused and non-fused build material of a cake and an exciting transducer to transmit a reducing signal during the evacuation process such that the reducing signal reduces vibrational sounds produced by the shaker before the vibrational sounds reaches a user.

The present disclosure provides a microphone apparatus. The microphone apparatus may include a microphone and a vibration sensor. The microphone may be configured to receive a first signal including a voice signal and a first vibration signal. The vibration sensor may be configured to receive a second vibration signal. And the microphone and the vibration sensor are configured such that the first vibration signal may be offset with the second vibration signal.

A camera includes one or more microphone pairs. A first microphone (e.g., a main microphone) is ported to the outside of the camera and captures the desired external audio signal, but may also capture undesired vibrational noise. A second microphone has a similar structure to the first microphone, but is not ported to the outside of the camera. Instead, the second microphone is ported into an enclosed cavity (e.g., 1-2 cubic centimeters in volume). The second microphone may pick up the same vibration excitation and internal acoustic noise as the first microphone but very little of the desired external acoustic sounds around the camera. The unwanted noise can then be removed by subtracting the second audio signal from the second microphone from the main audio signal from the main microphone.

An active noise canceling apparatus using a motor may include a reference sensor configured for detecting a noise source of the vehicle; an error sensor configured for detecting information related to internal noise of the vehicle; an adaptive control circuit configured of adjusting a filter value for reducing the internal noise of the vehicle on the basis of detecting signals from the reference sensor and the error sensor, and generating a current instruction for driving the motor by applying the adjusted filter value; a motor controller configured for controlling driving of the motor to follow the current instruction; and a radiation sound generator engaged to the motor and generating sound for offsetting the internal sound using vibration generated according to the driving of the motor.

Exemplary engine order and road noise control systems and methods include directly picking up road noise from a structural element of a vehicle to generate a first sense signal representative of the road noise, detecting harmonics of an engine of the vehicle to generate a second sense signal representative of the engine harmonics, and combining the first sense signal and the second sense signal to provide a combination signal representing the combination of the first sense signal and the second sense signal. The systems and methods further include broadband active noise control filtering to generate a filtered combination signal, and converting the filtered combination signal from the active noise control filtering into anti-noise and radiating the anti-noise to a listening position in an interior of the vehicle. The filtered combination signal is configured so that the anti-noise reduces the road noise and engine sound at the listening position.

The invention relates to a control device (1) and to a control method for noise reduction for a vehicle. The control device comprises the following: at least one supported auxiliary assembly for the vehicle, for example an air conditioning system (4) having an air conditioning compressor (40), an electrical accumulator (60) or a range extender (70), wherein the auxiliary assembly emits vibrations in operation; at least one vibration sensor (21a) for detecting vibrations; at least one controllable vibration actuator (22a) for generating vibrations and a control unit (10), which is connected to the vibration sensor and the vibration actuator or the vibration damper, wherein the control unit (10) is designed, based upon the detected vibrations, to generate control signals for transmission to the vibration actuator or the vibration damper (45, 52, 71, 81), which result in the vibrations emitted by the auxiliary assembly being reduced and/or masked in a vehicle interior (3).

The present disclosure provides a microphone apparatus. The microphone apparatus may include a microphone and a vibration sensor. The microphone may be configured to receive a first signal including a voice signal and a first vibration signal. The vibration sensor may be configured to receive a second vibration signal. And the microphone and the vibration sensor are configured such that the first vibration signal may be offset with the second vibration signal.