H04R2400/13

Dual asymmetric compression driver

In at least one embodiment, a dual asymmetric compression driver is provided. The dual asymmetric compression driver includes a first driver assembly and a second driver assembly. The first driver assembly is positioned about a central axis and includes a first annular diaphragm having a first planar section extending at a first clamping distance. The second driver assembly is positioned about the central axis and includes a second annular diaphragm having a second planar section extending at a second clamping distance. The first clamping distance is different from the second clamping distance causing the first asymmetric driver to provide a first audio output in a first frequency range and the second driver assembly to provide a second audio output in a second frequency range.

Airflow exit geometry

This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured to reduce the strength of forces generated by a subwoofer of the array speaker.

Full acoustic horn and method for producing same
20190394562 · 2019-12-26 ·

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.

Air-pulse generating device with common mode and differential mode movement

An air-pulse generating device includes a film structure including a flap pair. The film structure is actuated to perform a common mode movement, so as to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is actuated to perform a differential mode movement, so as to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation.

Dual compression driver with cone diaphragm

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.

OMNIDIRECTIONAL LOUDSPEAKER AND COMPRESSION DRIVER THEREFOR

An omnidirectional loudspeaker includes a lower horn member having a generally convex, upwardly-facing outer wall, an upper horn member spaced from the lower horn member and having a generally convex, downwardly-facing outer wall, and at least one compression driver connected to one of the lower or upper horn members along a central axis. The at least one compression driver includes a magnet assembly, a diaphragm operably connected to the magnet assembly, a phasing plug adjacent the diaphragm, and a compression chamber defined between the diaphragm and the phasing plug. The lower and upper horn members are coupled via the at least one compression driver in spaced relationship along the central axis to define a passageway for radiating sound waves generated by the compression driver in a generally horizontal 360 radiation pattern.

ACOUSTIC COMPRESSION CHAMBER WITH MODALLY COUPLED ANNULAR DIAPHRAGM
20240121558 · 2024-04-11 ·

An electrodynamic compression driver is defined that contains a compression chamber assembly partially bounded by an annular diaphragm. The compression chamber assembly has an annular axisymmetric geometry with a single exit for acoustic radiation. The chamber geometry is further defined such that only the zero-hertz mode of acoustic coupling is supported, allowing the use of a lumped parameter model for analysis of the acoustic coupling of diaphragm and compression chamber. The lumped parameter model is integrated with eigenmode analysis of diaphragm modes and characterization of the cross-coupling between diaphragm and compression chamber. The result is more rapid computation of how to control mechanical modes in the annular diaphragm so that they benefit the compression driver's acoustic output. Embodiments of compression chamber and diaphragms with geometry that facilitate modal control are provided.

SPEAKER

This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured to reduce the strength of forces generated by a subwoofer of the array speaker.

Compression-Type High-Pitch Loudspeaker Assembly with Horizontal Omnidirectional Horn Array
20190222925 · 2019-07-18 ·

The present invention discloses a compression-type high-pitch loudspeaker assembly with a horizontal omnidirectional horn array, comprising a high-pitch loudspeaker and a horn array. A vibrating diaphragm is disposed at the top of the high-pitch loudspeaker and the center of the horn array; the horn array comprises a horn block, a top plate and a bottom plate; the vibrating diaphragm is disposed between the top plate and the bottom plate of the horn array; the horn block of the horn array is configured to connect the top plate and the bottom plate of the horn array and supports the whole structure of the horn array, and the structure of the horn array and the interior of the vibrating diaphragm of the high-pitch loudspeaker together form a throat stop portion and a throat port portion.

SHALLOW PROFILE COMPRESSION DRIVER
20190208313 · 2019-07-04 ·

A compression driver includes a phasing plug including a base portion having a first side and an opposed second side, the first side including a central hub portion extending outwardly from the first side, the base portion including one or more apertures that extend therethrough from the first side to the second side. A diaphragm is disposed adjacent the phasing plug second side, and a compression chamber defined between the diaphragm and the phasing plug. In one embodiment, a front plate is attached to the phasing plug first side, the front plate having a central aperture generally aligned with the hub portion and base portion apertures. A horn may be attached to the front plate or directly to the phasing plug first side.