Panel loudspeaker controller and a panel loudspeaker
First Claim
1. A panel loudspeaker controller for controlling a panel loudspeaker comprising a plurality of actuators attached to a panel, the panel loudspeaker controller comprising:
- a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled;
a plurality of signal processors, each signal processor being associated with each input and having an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implementing a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver; and
a signal processor controller associated with all of the plurality of signal processors, wherein the signal processor controller is preconfigured to improve phase alignment between the signals as an ensemble output at the outputs of the signal processors to reduce cancellation of a contribution to an acoustic output of the panel of one actuator by another.
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Accused Products
Abstract
A panel loudspeaker controller for controlling a panel loudspeaker including a plurality of actuators, the panel loudspeaker controller including a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled; a plurality of signal processors, each signal processor being associated with each input and having an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implementing a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver; and a signal processor controller associated with all of the plurality of signal processors, wherein the signal processor controller is preconfigured to improve phase alignment between the signals as an ensemble output at the outputs of the signal processors.
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Citations
19 Claims
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1. A panel loudspeaker controller for controlling a panel loudspeaker comprising a plurality of actuators attached to a panel, the panel loudspeaker controller comprising:
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a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled; a plurality of signal processors, each signal processor being associated with each input and having an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implementing a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver; and a signal processor controller associated with all of the plurality of signal processors, wherein the signal processor controller is preconfigured to improve phase alignment between the signals as an ensemble output at the outputs of the signal processors to reduce cancellation of a contribution to an acoustic output of the panel of one actuator by another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electronic device configured to configure a signal processor controller of a panel loudspeaker comprising a plurality of actuators, the electronic device being configured to:
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input electrical signals into a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled; measure a response of the panel loudspeaker to the electrical inputs as an ensemble; and use the response to configure a signal processor controller, associated with all of a plurality of signal processors, to improve phase alignment, in use, between signals output at the outputs of the plurality of signal processors as an ensemble, wherein each signal processor is associated with each input and has an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implements a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver. - View Dependent Claims (14, 15, 16)
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17. A method of configuring a signal processor controller of a panel loudspeaker comprising a plurality of actuators, the method comprising:
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inputting electrical signals into a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled; measuring a response of the panel loudspeaker to the electrical inputs as an ensemble; and using the response to configure a signal processor controller, associated with all of a plurality of signal processors, to improve phase alignment, in use, between signals output at the outputs of the plurality of signal processors as an ensemble, wherein each signal processor is associated with each input and has an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implements a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver. - View Dependent Claims (18, 19)
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Specification