Provided is a sound output apparatus including a driver configured to emit sound; a pipe including a plurality of holes that are aligned in a row in a side surface of the pipe and are configured to receive the sound emitted from the driver; and at least one cover covering the plurality of holes. Impedance values of the plurality of holes which are covered by the at least one cover are substantially equal to each other within a preset range.

There is disclosed in one example an audio processor, including: an audio crossover to separate a first frequency band from a second frequency band, the first frequency band having a lower frequency band than the second frequency band; an excursion estimator to estimate from information of the first frequency band a predicted excursion of a low-frequency driver; an interpolator to interpolate an adjustment to the second frequency band to compensate for the estimated excursion; and circuitry to drive the adjusted second frequency to a receiver.

The present invention relates to a speaker box (1) having a speaker housing (2) and a speaker (3). The speaker (3) has a speaker chassis (4) having a flange ring (5) on the front side (6) of the speaker (3), and a magnet head (8) on the rear side (7), opposite the flange ring (5), of the speaker (3). The speaker (3) is attached, by way of its flange ring (5), to a metal plate (9) that at least partly covers the speaker housing (2) at the front. For simpler and more effective self-cooling, a section connected to the flange ring (5) and made from metal projects into the speaker housing (2) and forms a channel wall (10) of an air channel (11).

An earphone/headphone device, and a housing for such device are presented. The housing has proximal and distal ends defining respectively, a proximal closed-end portion and a distal open-end portion of the device, and comprises a sound source site for mounting a sound source in this site inside the housing, and an acoustic cavity extending from a back side of the sound source site and the proximal end portion of the housing. The acoustic cavity is configured to define a perpetual self-feeding closed-loop structure for propagation of backwave sound originated at the sound source site, such that the backwave sound is trapped and circulates in the closed-loop structure.

A sound emitting device includes: a speaker that is provided at a back surface of a user interface device; a support body that supports the user interface device; a horn portion that is provided in the support body; and a space portion that is a space formed inside the support body and extending from a sound emission region of the speaker to the horn portion.

An acoustic suspension speaker enclosure is filled with a heavy gas, which has a much lower sonic velocity than air. This allows the enclosure to operate at a much lower frequency, in direct proportional to the reduction in sonic velocity.

A speaker for transmitting reflected sound waves off an upper surface down to a listening environment, comprising: a cabinet containing a plurality of audio drivers, direct-firing drivers within the cabinet oriented to transmit sound along a horizontal axis substantially perpendicular to a front surface of the cabinet, and a pair of upward-firing slotted drivers placed proximate to ends of an top surface of the cabinet and oriented at an inclination angle relative to the horizontal axis. The slotted drivers are configured to create an overlapping reflected sound projection for high frequency sound when reflected down to a listening position located at a distance in front of the speaker pair. Such a speaker projects reflected sound that provides wider horizontal or side-to-side dispersion to better cover the listening area.

Provided is a sound output apparatus including a driver configured to emit sound; a pipe including a plurality of holes that are aligned in a row in a side surface of the pipe and are configured to receive the sound emitted from the driver; and at least one cover covering the plurality of holes. Impedance values of the plurality of holes which are covered by the at least one cover are substantially equal to each other within a preset range.

The invention relates to speaker systems for high-quality sound reproduction. It provides a simplified structure of the device, improves the device manufacturability and durability. The speaker system includes the driver, the horn for reproducing low-frequency range sound (rear horn), and the horn for reproducing high-frequency and mid-frequency range sound (front horn); both horns are made in the form of a single enclosure with the capability of mounting the driver in this enclosure, while the enclosure is made of two solid parts symmetrical with respect to the plane of the central vertical section, each part represents a half of the overall profile of the front and rear horns, with no joints at the junction between the front and the rear horns.

Systems and methods are herein described for a coaxial loudspeaker. The loudspeaker may comprise a compression driver having a first diaphragm assembly including a first magnet, and a first diaphragm coupled to a first voice coil, and a second diaphragm assembly including a second magnet and a second diaphragm coupled to a second voice coil. The compression driver may further comprise a third diaphragm assembly including a third diaphragm coupled to a third voice coil.