An active noise reduction microphone calibration detection device

By using a 360° rotating simulated sound-generating element and flexible sound generation control, the problems of missed detection and insufficient accuracy of active noise-canceling microphone detection devices have been solved, enabling accurate detection of microphones in the entire space and capture of current sound in dynamic scenes.

CN121531288BActive Publication Date: 2026-04-28FUJIAN EASTWEST LIFEWIT TECH CO LTD
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Patent Information

Application Number
CN202610031657.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-04-28
Estimated Expiration
2046-01-12

AI Technical Summary

Technical Problem

Existing active noise-canceling microphone detection devices cannot fully reflect the actual performance of microphones in use, and there are problems such as missed detections or insufficient accuracy, especially in voice input scenarios where periodic low-frequency noise is easily mixed in.

Method used

Employing 360° rotating side and top simulated sound-emitting elements, combined with flexible sound quantity control, and driven by a servo motor to adjust the angle and vibration frequency, it simulates dynamic user scenarios and achieves all-round coverage detection.

Benefits of technology

It achieves accurate detection of microphones throughout the entire space, captures current sound defects in dynamic scenes, improves the targeting and accuracy of detection, and ensures the practical reference value of the detection results.

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Abstract

The application discloses an active noise reduction microphone calibration detection device and relates to the technical field of microphone detection.The device comprises a detection chamber and a microphone main body, the inside of the detection chamber is internally provided with a lifting unit, the lifting unit is internally provided with a current sound detection unit, the lifting unit is used for adjusting the height of the current sound detection unit, the current sound detection unit comprises an annular track which is arranged on the lifting unit, an inner side of the annular track is provided with a track groove, and the inside of the track groove is slidably provided with three first sliding blocks which are arranged in an annular array, one mounting bracket is arranged on each of the first sliding blocks, and an equilateral tripod is movably arranged between the three mounting brackets, and one extension frame is arranged at each of three corners of the equilateral tripod.In the application, the three lateral simulation sound production elements are rotatable in a 360-degree surrounding mode and are independently adjustable in angle, the top simulation sound production unit is combined, flexible sound production quantity control is matched, and full-space accurate detection of the microphone is realized.
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