Noise reduction with a single collection microphone "ANC"
By using a single collection microphone, cost reduction is achieved, microphone performance errors are eliminated, and noise reduction accuracy is improved!
Active Noise Canceling (ANC) is a technology that utilizes the ability to synthesize sound by generating a phase-inverted canceling sound to reduce noise. By outputting the canceling sound from speakers in response to the sound collected by a microphone, noise is reduced. Our ANC system is characterized by achieving noise reduction with just one microphone.
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basic information
Install a noise-canceling speaker in the duct and a pickup microphone at the noise cancellation point. The controller (PC) collects sound from the microphone and outputs sound from the speaker to cancel out the noise, thereby reducing it. By adopting a feedback algorithm for the noise control filter, it eliminates the need for a pickup microphone for the noise source required by the feedforward algorithm, achieving this with just one pickup microphone at the noise cancellation point.
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Applications/Examples of results
It is expected to be effective in reducing noise in closed spaces such as ducts. Additionally, it can be utilized as a measurement tool. - Noise reduction in ducts and openings (such as exhaust pipes and chimneys) - Measurement of the transfer function (acoustic characteristics) within the duct
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Company information
MoreSon Japan Co., Ltd. leverages over 40 years of experience and technology in software development to meet our customers' expectations across a wide range of industries and diverse product areas. We provide the technologies and methods that society demands today in a reliable manner to our customers. Under this mission, our company has acquired a broad range of expertise with a fearless attitude towards transformation. We will continue to unite our efforts to create new value in order to respond to the expectations of our customers and society with "more." To understand our customers' operations and challenges and provide the truly needed technologies, we have assembled experts from various fields.