132results about How to "High-quality sound" patented technology

An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.

According to various embodiments, an audio system having high quality sound and a high frequency response is provided. The audio system comprises one or more speakers with mismatched components. Although the combination of mismatched components may result in a diminished frequency response, digital signal processing may compensate for the physical deficiencies of a driver of the speaker. In some embodiments, an audio system comprises a speaker and a signal processor. The speaker may comprise one or more mismatched speaker components which are operably coupled to each other such that the components, together, have a low frequency response. The signal processor may operably couple to the one or more mismatched speaker components. The signal processor may be configured to process an input signal and to drive the speaker using the processed signal such that the speaker has a higher frequency response than the low frequency response.

Systems and methods to deliver live sound with enhanced quality conveyed by a mixing desk to a mobile computing device user contemporaneously with external live sounds. The mobile computing device is operable to receive enhanced audio signals produced by a remote audio signal processing device through a communication work. A memory resident application is configured to playback the enhanced audio signals in phase with the external sounds using an audio rendering device. An attendee at the live event can hear the sounds from the playback through an earphone coupled to the mobile computing device as well as from the ambient environment.

A sound reproducing apparatus includes a display unit, a board 22, a diaphragm panel 23, and an electroacoustic transducer 26. The display unit displays an image on a display surface. The board 22 is composed of a material which transmits visible light and arranged such that a first space is provided between the display surface of the display unit and the board 22. The diaphragm panel 23 is composed of a material which transmits visible light and arranged on the opposite side of the board 22 from the display unit such that a second space is provided between the board 22 and the diaphragm panel 23. The electroacoustic transducer 26 emits sound into the second space.

Apparatus for in-vehicle provision of audio content to a listener. The apparatus includes a cellular telephone adapted to receive broadcast radio content over a wireless network, and an in-vehicle audio system adapted to be fixedly installed in a vehicle, and coupled to receive the broadcast radio content from the cellular telephone, and to play the content in the vehicle.

Disclosed herein is a digital filter circuit for producing a noise reduction signal for reducing noise based on a noise signal outputted from a microphone which collects the noise, including: an analog/digital conversion section; a first digital filter section; an arithmetic operation processing section; a second digital filter section; and a digital/analog conversion section. The first digital filter section and/or the second digital filter section are configured such that a predetermined attenuation amount is obtained within a predetermined range in the proximity of a sampling frequency around the sampling frequency.

Disclosed is an installation structure for a loudspeaker system in a vehicle, the loudspeaker system being installed in a vehicle front space separated from a vehicle interior by a partition, the vehicle front space being anterior to the vehicle interior, the installation structure including a sound guide port extending through the partition. The sound guide port allows a sound output space of a diaphragm in the loudspeaker system to communicate with front part of the vehicle interior.

A speech transmission adapter for use with a respirator mask. The respirator mask has an associated clean air source and defines a clean air envelope between the body of the respirator mask and the face of the wearer and is bounded by a sealing portion of the respirator mask, the clean air source, and an exhalation port. The speech transmission adapter comprises a peripheral housing, a speech reception device supported by the peripheral housing, a speech transmitter coupled to the speech reception device, and a port defined in the peripheral structure for enabling the passage of air therethrough. The peripheral housing is adapted to mate to the respirator mask in a manner that expands the clean air envelope defined therein to include the speech reception means within the clean air envelope without requiring structural modification to the respirator mask.

The ear pad according to the present invention has a number of gathered sound-insulating walls (12) monolithically provided on an outer periphery of the basic body (11) made of an elastic material such as rubber, for instance, a silicon rubber or such as soft synthetic resins, for instance, polypropylene in a ring form with a prescribed space in the axial direction and made of the same material as that for the basic body. With this feature, the ear pad according to the present invention can provide softness and adaptability to be set in an auditory meatus without stimulating sensitive portions thereof.

A chair equipped the a speaker is provided with a frame that forms the structural skeleton of the chair, and a speaker unit that is installed to the frame; and wherein hollow pipe is used for the frame, and furthermore wherein the frame functions as an acoustical resonating section or acoustical space for the speaker.

The present invention relates to an acoustic transducer that includes one or more capsules, side walls and a backing plate. Each capsule contains a cavity formed by the side walls and a plurality of film stacks. Each film stack has one or more membranes that can be a piezoelectric layer. Two or more of the film stacks that form the first cavity faces each other. A film stack and the backing plate face each other and form the wall of a second cavity. The transducers of this invention have a broadband response, can radiate sounds uni-directionally, and produce high quality sounds at low frequencies and at high intensities. They can be driven by AC signals. They can be fabricated using conventional integrated circuit manufacturing processes and therefore can be mass produced easily and inexpensively.

A piezoelectric-type speaker is provided for converting electrical signals into sounds capable of being heard by a human ear. The piezoelectric-type speaker includes a housing, a separating portion, a supporting base, a high-pitched speaker and a dynamic low-pitched speaker. The separating portion is disposed at the housing and provided for separating interior spaces of the housing. The supporting base is disposed at the housing. One end of the supporting base is fastened with the separating portion. The high-pitched speaker is formed by a piezoelectric member, and is supported by the other end of the supporting base. The dynamic low-pitched speaker is disposed in the housing. The dynamic low-pitched speaker is disposed at the separating portion and opposite the high-pitched speaker.

In digital hearing devices, it is common to reduce the preamplifier gain when very loud signals are received in order to avoid clipping. It is known to temporarily reduce the preamplifier gain with fast attack and release times when a clipping of the input signal in the digitiser is expected. Perceived signal quality of the audible signal provided to the user of the hearing device is herein improved by simultaneously providing relatively fast and relatively slow temporary reductions of the amplifier gain such that the slow gain reductions reduce the occurrences of fast gain reductions. This allows the hearing device to provide a high quality sound to the user where clipping is reduced due to the fast gain reductions and where signal artefacts, such as pumping and switching noise, produced by the fast gain reductions is reduced due to the slow gain reductions.

A mobile communication device is provided that includes a first body, a second body hingedly-coupled to the first body and speaker unit installed in the second body such that sound generated when the first body is folded closed with respect to the second body can be directly transferred outside the mobile communication device. Using the present invention, a user can listen to high-quality reproduced sound without distortion even when the first body is folded closed with respect to the second body and reliability and competitiveness of a product can be improved.