The present invention provides an elongated active thermo-regulated neonatal transportable incubator (ANTI), having a main longitudinal axis with a proximal end and an opposite distal end comprising adjacent to at least one of the ends a temperature regulating vent (TRV). The TRV is configured to stream air from one end towards the opposite end substantially along the axis, and the ANTI is configured, by means of size and shape, to accommodate the neonate in parallel to the axis. Further the ANTI can be configured by means of size shape and material to at least partially inserted into an MRD having an open bore in its longitudinal axis, further accommodating the neonate parallel to the MRD bore. An incubator with a temperature regulating vent located outside the incubator and its base.

A device (1) for reducing a rolling noise of a vehicle (3) having at least one tire (2), the tire (2) rolling on a roadway on a tire contact patch (4), wherein the device (1) comprises at least one sound absorption element (5) attached to the vehicle (3) in front of, behind and/or laterally of the tire contact patch (4) in the direction of travel (F) of the vehicle (3) and having at least one resonance frequency and a curved first absorber membrane (6) facing the tire contact patch (4), wherein essentially the entire first absorber membrane (6) is oriented normally to a direction of sound propagation (S) emanating from the tire contact patch (4), and the sound absorption element (5) is located at a distance from the tire contact patch (4) which corresponds to a multiple of half a wavelength (λ) assigned to the resonance frequency.

The present invention is directed to a wireless confidential device for voice communication that has an ergonomically shaped housing with a flange, the shape of which reflects a covering area around a user's mouth. The housing further has at least one microphone, transceiver, switch, sound absorbing means. The sound reducing means can include a front portion, side portions and back portion. The flange is located on the inner surface of the front part of the housing. The device also has a wired or wireless headset, at least one headphone connected with the mobile communication means, and arranged to complement the passive muffling methods of speech by active muffling methods of speech and noise reduction techniques.

An audio processing device (100) includes a correction microphone (110), a reference microphone (120), a classification unit (130), an active noise cancellation (ANC) unit (140), and a speaker (150). The correction microphone is arranged in an area adjacent to an ear of a user of the device and picks up acoustic signals in the area and outputs same as a correction signal. The reference microphone picks up surrounding noises (124) from a surrounding area of the user and outputs same as a reference signal. The classification unit receives the reference signal and splits the reference signal corresponding to a spectrum and amplitude thereof into signal components of two or more classes and outputs a classified signal. The ANC unit receives and processes the correction signal based on the classified signal and outputs a corresponding audio signal. The speaker receives the audio signal and provides a corresponding acoustic signal output.

A speaker system includes a cushion body with which a person comes into contact when sitting therein, and a speaker, a front of which is covered by the cushion body. The cushion body includes: a three-dimensional mesh-like elastic part that is formed by a three-dimensionally entangled fiber and bears a load of the person; and a cover member that covers surroundings of the three-dimensional mesh-like elastic part. The cover member includes a first cover member that covers the part of the surroundings of the three-dimensional mesh-like elastic part located at the front of the speaker, and a second cover member that is a remainder of the cover member excluding the first cover member. The first cover member has a higher acoustic transmissivity than the second cover member.

A method and apparatus for acoustic noise cancellation (ANC) in an audio headset. A combination of an analog feedforward path and at least one digital feedforward path enables the ANC facility to operate with the shorter delay inherent in analog electronics, but with the capability of better cancellation of reflections that digital feedforward allows.

A sound reducing system (500) includes at least one sound reducing speaker for radiating a sound wave for sound reduction. The at least one sound reducing speaker includes a piezoelectric speaker (10). The piezoelectric speaker (10) includes a piezoelectric film (35), a fixing face (17) in contact with a support supporting the piezoelectric speaker (35), and a film holding portion (55) disposed between the piezoelectric film (35) and the fixing face (17). (i) The film holding portion (55) includes a pressure-sensitive adhesive layer and the fixing face (17) is formed of a surface of the pressure-sensitive adhesive layer and/or (ii) the film holding portion (55) includes a porous body layer.

An active noise cancellation system for reducing unwanted noise in a target area by attenuating a disturbance noise signal (d(n)), which is the remaining noise in the target area originated from an ambient noise signal (x(n)) present in the vicinity of the target area that is transferred to the target area via a main path described by a transfer function P(z)), the active noise cancellation system including a processing unit that implements an ANC-controller which is configured to provide a control signal (y(n)) for controlling a speaker in the target area in order to generate an acoustic signal (y(n)) that destructively overlaps with the disturbance noise signal (d(n)) and thereby attenuates the same.

An audio processing device (100) includes a correction microphone (110), a reference microphone (120), a classification unit (130), an active noise cancellation (ANC) unit (140), and a speaker (150). The correction microphone is arranged in an area adjacent to an ear of a user of the device and picks up acoustic signals in the area and outputs same as a correction signal. The reference microphone picks up surrounding noises (124) from a surrounding area of the user and outputs same as a reference signal. The classification unit receives the reference signal and splits the reference signal corresponding to a spectrum and amplitude thereof into signal components of two or more classes and outputs a classified signal. The ANC unit receives and processes the correction signal based on the classified signal and outputs a corresponding audio signal. The speaker receives the audio signal and provides a corresponding acoustic signal output.

An active noise cancellation device having an acoustic filter includes: a casing, an active noise cancellation unit, a speaker, a noise cancellation processor and an acoustic filter. The casing includes a first channel and a second channel, wherein a channel length of the first channel is greater than a channel length of the second channel. The active noise cancellation unit includes an external microphone disposed outside the casing. The active noise cancellation is configured to detect an ambient noise, wherein a location of the external microphone corresponds to a location of the first external end of the first channel. The speaker is disposed at a second external end of the second channel, and is configured to output a phase-inverted signal of the ambient noise. The noise cancellation processor electrically couples with the external microphone and the speaker. The acoustic filter is disposed inside the first channel.