An apparatus instantiating a method for computing automatic noise compensation gain with an adaptive filter that receives ambient sound and source audio, down samples ambient sound and source audio, and filters the down sampled ambient sound and source audio to compute an RMS noise estimate from which a gain is determined. The present invention features highly efficient computations, as sampling rates are significantly lower. The present invention keeps audio data secure by transmitting only the mean-square audio levels instead of the audio itself.
A smart speaker system is used as an emergency notification system. The smart speaker has a loudspeaker, a microphone, a visual display, processing capability, and an emergency flasher in the same enclosure. The smart speaker is in communication with a network-connected server providing at least distribution of emergency notification messages to appropriate clients. The amount of audio processing shared between the smart speaker and the server may vary, depending on the requirements of the installation site. Once an emergency voice communication is detected in the microphone output, the system generates a confirmation message that is played over the loudspeaker. Upon detection of an appropriate voice response from the user, the system generates an emergency response message, sends it to the distribution network, and activates the visual display, loudspeaker, and emergency flasher. Noise cancellation circuitry prevents loudspeaker interference with microphone output.
An electronics rack crown for facilitating communications between a user of said electronics rack and a remote entity. The rack crown is responsive to door events and data inputs, externally visually signaling fault conditions in electronic modules mounted in the rack, automatically communicating alarms or anomalies via the Internet to the remote entity, providing an interchangeable user brand logo panel, and providing for configuration via an array of configuration DIP switches or by SD card. The electronics rack crown includes a framed video screen, at least one loudspeaker, and a microphone. An electronics compartment houses a PCB board that provides communications, data processing, executive functions, and audio and video signal processing.
A small, lightweight ceiling speaker assembly in a lightweight plastic tubular L-shaped housing with an inclined rear end closed by an electronics connection panel. The tubular L-shaped housing is assembled from right and left L-shaped halves and encloses a speaker, a multi-tap transformer, and control electronics. Selection of the transformer tap, zone selection, and configuration controls is accomplished manually on the electronics connection panel. Analog ANALOG IN and ANALOG OUT jacks are also located on the electronics connection panel. Spring-biased feet engage the top surface of a ceiling tile or panel to clamp the L-shaped strategically hidden speaker system against an annular flange of a releasably attachable sound diffuser or director.
An attachment to a small ceiling speaker system that is interchangeable with a diffuser of such system and that provides direct downward direction to sound produced by such system. A director interface is provided for adjustably attaching to an acoustic channel shell of such system. A direct fire ring releasably attaches to the director interface with a fastener. The direct fire ring supports magnets for releasably attaching a foraminous audio speaker grill. The director interface and the direct fire ring have alignable hub and spoke features and the hub and spokes of the director interface partially nest within the hub and spokes of the direct fire ring.
A cleanroom compatible elastomeric cover for an acoustic attachment, such as a diffuser or a director, to a Small Ceiling Speaker System. The present invention provides one elastomeric cover for the otherwise exposed axial acoustic port of a director or the exposed radial acoustic port of a diffuser. The cover further provides a cleanroom seal between the diffuser or the director and the ceiling tile. The diffuser and the director are each acoustic attachments to the enclosed speaker portion of the small ceiling speaker that is above the ceiling tile and supported on the ceiling tile support grid, rather than the tile itself. The portion of the small ceiling speaker that is below the ceiling tile includes a sectionally threaded acoustic channel shell and an acoustic attachment. The cover prevents contaminants from entering the cleanroom though the hole in the ceiling tile through which the acoustic channel shell extends.
A small dual-speaker ceiling speaker system including a loudspeaker and a tweeter with an acoustic diffuser that is adjustable over a range of lengths for different thicknesses of ceiling tile and is independently adjustable over a range of acoustic port sizes. The loudspeaker sends acoustic waves into a acoustic channel that includes a truncated conical shell, or acoustic channel cone, with a cylindrical acoustic channel shell extending therefrom. A tweeter is mounted in the acoustic channel shell. A diffuser couples to the acoustic channel shell using threads that may be engaged or disengaged. The diffuser has a diffuser element that can be raised or lowered with a screw to adjust the size of the acoustic port. The diffuser element has demarcations for visually indicating acoustic port size. A housing with a base having extendable braces supports the speaker system on the ceiling grid, rather than on the tile.
A small dual-speaker ceiling speaker system including a loudspeaker and a tweeter with an acoustic diffuser that is adjustable over a range of lengths for different thicknesses of ceiling tile and is independently adjustable over a range of acoustic port sizes. The loudspeaker sends acoustic waves into a acoustic channel that includes a truncated conical shell, or acoustic channel cone, with a cylindrical acoustic channel shell extending therefrom. A tweeter is mounted in the acoustic channel shell. A diffuser couples to the acoustic channel shell using threads that may be engaged or disengaged. The diffuser has a diffuser element that can be raised or lowered with a screw to adjust the size of the acoustic port. The diffuser element has demarcations for visually indicating acoustic port size. A housing with a base having extendable braces supports the speaker system on the ceiling grid, rather than on the tile.
Johnathan Ivey (born February 4, 1976)is an American Heavyweight mixed martial artist. He has fought notable fighters such as Gan McGee, Jeremy Horn, Ben ...