A sound receiver head set or ear phone includes an ear piece housing of generally semi-spherical shape having an annular padded edge which is adapted to be located against the head of a user around the ear. The housing defines a guide for a transducer system which has an acoustic inlet which may be oriented at a selected location in respect to the auditory meatus of the wearer. The housing carries adjusting means for regulating the position of the transducer and the acoustic outlet so that it is at a desired spacing or gap from the ear. The guide way defined in the housing for the transducer is advantageously oriented at an optimum angle in respect to the ear of the wearer in respect to a tangent to the head of the wearer and in addition the adjustable means permits its inner and outer movement in respect to the ear for the precise definition of the volume of an interreaction gap defined between the acoustic outlet of the transducer and the auditory meatus of the ear.
A static disposition geometry of the transducer systems of stereo headphones starting from the convention disposition of the headphones at the entrance to the ears, diagonally spaced downward in a forward direction (in in the direction of sight of the user). The conventional stereo headphones having essentially hemispherical housings with the transducer systems disposed in the center of the circular support structure closing the hempspherical housings from the users ears are modified by disposing these transducer systems at a position which is defined by a vector pointing forward in the direction of sight and predominately downward. The transducer systems are fixed in this later position. The amount of downward shift is greater than the amount of forward shift and may be greater than two to one.
A holder is provided for securing a microphone or earpiece in position inside a helmet. The holder comprises a plurality of tubular rings of soft flexible material. One ring is adapted to be connected to a shell of the helmet, and the other rings are serially connected by resilient, short, thin, soft segments. The rings are dimensioned and arranged so that they can be nested within each other or pulled out to form an extending holder. A microphone or earpiece may be connected to one of the said rings.
An ultrasonic transmitting and receiving device wherein horns are substantially vertically fitted to a holding frame so that opening side of the respective horns will be directed downward. Each horn is provided in its throat section with an ultrasonic oscillator and in its opening with a reflector diagonally opposing the oscillator.
A spacing device which holds earphones away from the ears to create a sense of live music when the earphones are used in conjunction with loudspeakers. The spacers allow sound from loudspeakers set away from the user to reach the ear from all directions. When the spacer is worn to hold earphones a distance from the ear while listening to recorded music played through both earphones and loudspeakers from the same source the user experiences an increase in ambience or sense of concert-hall realism.
A spacing device which holds earphones away from the ears to create a sense of live music when the earphones are used in conjunction with loudspeakers. The spacers allow sound from loudspeakers set away from the user to reach the ear from all directions. A volume control connected between the earphones and amplifier provides sound level adjustment for creating an optimal condition of presence as sensed by the listener.
