Meyer Sound Laboratories, Incorporated

Katrin M Rawks

Jon M Arneson

Pablo Espinosa

Michael Schneider

Paul Bunning

John D Meyer

Paul J Kohut

Roger Schwenke

Pei-Yuan Liu

Carlo Zuccatti

An apparatus for modifying a responsive liquid held in a barrel or other liquid container includes a transducer for producing vibration energy within the audio frequency range in response to an audio signal input and a coupler affixed to the transducer such that vibration energy produced in the transducer is transferred to the coupling device. The coupling device has a pusher end that extends beyond the front plane of the transducer and that contacts and pushes against the barrel wall when the apparatus is tied to the barrel wall. By determining the resonances of the liquid-filled barrel, audio input signals having sufficiently high levels at determined resonant frequencies can be chosen to achieve a maximum response in the liquid contained in the barrel. The apparatus is particularly suited for the sonic aging of whisky.

Apparatus and method for modifying a responsive liquid held in a liquid container having resonant frequencies in the audio frequency range

Loudspeaker

An arrayable loudspeaker () has at least one high frequency driver () mounted to a horn () and at least one pair of low frequency drivers () configured behind and in a closely spaced relationship to the horn to form low frequency side chambers () between the drivers and the horn from which acoustic energy produced by the low frequency drivers can propagate. Low frequency exit channels () above and below the horn are coupled to the low frequency side chambers (). The configuration of the horn and low frequency drivers and the low frequency side chambers and low frequency exit channels is such that acoustical outputs of all drivers radiate coaxially from the loudspeaker with substantially constant wide beamwidth in the non-arraying plane. Signal processing can be added to enhance beamwidth control critical frequency ranges above crossover.

Arrayable loudspeaker with constant wide beamwidth

Arrayable loudspeaker

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El Cerrito, CA, United States of America

Katrin M Rawks