3results about How to "Cancel sound" patented technology

The present application relates to a kind of electromagnetic underwater acoustic transducers, including shell, it is arranged in liquid-filled pipeline;Displacement amplifier module is arranged in shell, displacement amplifier module includes drive panel, oil cylinder and radiation panel, radiation panel is retractably arranged below oil cylinder, radiation panel side and liquid in liquid-filled pipeline contact, drive panel is retractably arranged above oil cylinder;Water pressure balancer module is arranged above drive panel;Electromagnetic actuator module is arranged in shell and is outside water pressure balancer module.The present application passes through water pressure balancer module and transmits the hydraulic pressure outside shell to drive panel, so that the drive panel and radiation panel on both sides of oil cylinder keep hydraulic balance, in through electromagnetic actuator module drive keep hydraulic balance after the drive panel and radiation panel movement, make radiation panel emit amplitude opposite, phase same acoustic wave to offset noise, so that transducer can eliminate sound in the pipeline of greater pressure.

This application provides an echo cancellation system, method, and device based on a complete reference signal on the server side, applicable to the field of audio processing technology. The system of this application uses the original audio sample from the client, stored on the server side, as a precise reference signal. When returning the output audio signal to the client, the server has already subtracted the client's corresponding reference signal from the globally mixed audio, thereby eliminating the client's voice and preventing the client user from hearing their own voice, thus achieving echo cancellation. Compared to existing technologies where echo cancellation is achieved by the client estimating the echo using AEC technology, the system of this application leverages the server's possession of a complete reference signal to achieve echo cancellation, reducing complexity while ensuring the accuracy of echo cancellation.

The utility model discloses a kind of conveniently dismounting mute tow chain, including several chain links connected head and tail, chain link includes two parallelly arranged vertical plate one and vertical plate two, one end of vertical plate one and vertical plate two is equipped with connecting hole, the other end is equipped with the connecting column compatible with connecting hole, connecting hole is equipped with elastic mute piece, vertical plate one avoids the upper and lower ends of connecting hole and connecting column and is fixed with horizontal plate one, vertical plate two avoids the upper and lower ends of connecting hole and connecting column and is fixedly connected with horizontal plate two, the end of each horizontal plate one away from vertical plate one is equipped with first sliding slot, horizontal plate two is correspondingly embedded in first sliding slot to make horizontal plate one and horizontal plate two slidingly connected, the end of each horizontal plate one away from vertical plate one is equipped with locking assembly. The technical scheme of the utility model can realize the quick dismounting and installation of mute tow chain, so as to facilitate the user to assemble suitable length of tow chain according to needs, facilitate maintenance and replacement.