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2 results about "Sound reinforcement system" patented technology
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A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. In many situations, a sound reinforcement system is also used to enhance or alter the sound of the sources on the stage, typically by using electronic effects, such as reverb, as opposed to simply amplifying the sources unaltered.
Feedback cancellation divergence prevention
ActiveUS12646495B2Sound producing devicesActive noise controlAudio frequencyAdaptive feedback cancellation
Improved adaptive feedback cancellation may be used to improve performance of audio amplification systems, such as hearing assistance devices, sound reinforcement systems, telephony, and other acoustic amplification and reproduction systems. This adaptive feedback cancellation allows a significant increase in the maximum stable gain of the amplification system, such as by increasing gain while reducing or eliminating feedback. This improves the audibility provided by an audio amplification system. This may provide particular improvements for hearing assistance devices that include open fittings or otherwise have substantial acoustic leakage. This adaptive feedback cancellation provides additional protection from a dynamically changing acoustic leakage by continually updating itself to model the changes, thereby providing increased gain while reducing or eliminating feedback.
Owner:STARKEY LABORATORIES INC
A small venue sound amplification system building method and device
The application provides a small venue sound amplification system building method and device, the method comprises the following steps: based on the initial building scheme, an initial sound amplification system is built in the target scene, and acoustic data is obtained by performing acoustic acquisition in the target scene; a multi-dimensional acoustic matrix is constructed based on the acoustic data; the multi-dimensional acoustic matrix is input into a preset feature processing model to obtain a one-dimensional first acoustic matrix; a working feature matrix is constructed based on the arrangement position and working parameters of the sound amplification facilities in the initial building scheme; an input feature is constructed based on the working feature matrix and the first acoustic matrix, the input feature is input into a preset parameter adjustment model, the parameter adjustment model outputs a feature adjustment matrix, the feature adjustment matrix corresponds to the working feature matrix, and the arrangement position and working parameters of each sound amplification facility are adjusted based on the feature adjustment matrix.
Owner:COMMUNICATION UNIVERSITY OF CHINA