In the speaker mounting structure, a speaker 2 is mounted onto a cabinet 1 through a speaker holder 5. The speaker holder 5 is divided to a holder main body 55 for holding the speaker 2 thereon and a mounting portion 56, and the mounting portion 56 is screwed to a projecting portion 17 provided on and projected from the cabinet 1. The holder main body 55 extends through a corner portion 16 between the front wall 12 and peripheral wall 14 of the cabinet 1, and the holder main body 55 is disposed ...

The components of a portable personal audio system include first and second audio signal source devices, such as an MP3 player (14) and telephone (16). These are connected via respective leads (12) to a control and switching stage (22), and from there to left and right audio output devices (26). User input to effect operation of the control and switching stage (22) selectively directs audio signals from one or both of the signal source devices (14, 16) to a selected one or ones of the left and r...

Apparatus for simulating sound properties of audio equipment not physically present in a simulated environment not physically present includes a source of binaurally encoded audio signals processed for loudspeaker reproduction characterizing audio equipment not physically present in a simulated environment not physically present. There are left and right electroacoustical transducers. A head locator is constructed and arranged to locate a listener's head in a predetermined position between and a...

A high quality stereophonic sound enclosure system high resolution intended for computer visual display monitors employing cathode ray tubes (CRTs) having a vertical aperture grill, and methods for construction of same. The aperture grill has a natural frequency centered within the musical scale. The stereo speaker system comprises a ported speaker enclosure within which are mounted two conventional cone speaker assemblies. A stereo audio amplifier and control unit for controlling the audio sign...

An apparatus for minimizing sound vibrations in a television cabinet is disclosed. Specifically, the apparatus reduces the amount of vibrations generated by a loudspeaker that are transmitted into a television cabinet while maximizing sound energy transmitted from the cabinet. The apparatus includes an enclosure pod for accommodating at least one loudspeaker that is mounted in the television cabinet using vibration reducing devices.

A fetal communication device for permitting a user to aurally communicate with a fetus includes a housing designed for resting on the belly of a pregnant mother with a pair of elongate flexible straps coupled to the housing designed for extending across the belly of a pregnant mother. An elongate flexible attachment strap is attached a first strap of the pair of straps and is designed for wrapping around the back of the pregnant mother to hold the housing to the belly of the pregnant mother. An ...

An apparatus and method for improvement of stereophonic sound. A source of stereophonic sound is provided with two internal loudspeakers and external access to the stereophonic signal. A "wall of sound" effect is achieved by coupling of the sterophonic signal to at least two external loudspeakers with the internal loudspeakers being fed a mixture of the sterophonic signal at reduced power.

A process for locally linking optical and acoustic signals in an audiovisual apparatus and an arrangement comprising a plurality of electro-acoustic transducers are described. There are known audiovisual apparatuses capable of multichannel sound reproduction, wherein, however, no satisfactory local linkage takes place between optical and acoustic signals. Thus a plurality of electro-acoustic transducers are provided. They are electrically controlled independently of each other, and are arranged ...

The stereophonic system of the invention comprises two tweeters (12, 13) fixed to the front panel, and a low-frequency loudspeaker (4) fixed to an enclosure (6) inside the back of the cabinet. It is thus possible to use a large low-frequency loudspeaker.

There is disclosed a body speaker comprising a casing having an upper part and a lower part, the upper part having a central circular aperture closed by a cap, a thin magnetic disk with a small diameter centrally attached on the inside of the cap, a tubular member fixed around the central circular aperture of the upper part, a solenoid coil wound around the tubular member, and an oscillation body for oscillating in response to variation of the magnetic field of the solenoid coil, wherein gaps ar...