Test method for denoising earphones

• Main Author: LI HUAIZI
• Format: Patent
• Language: Chinese; English
• Published: 21.08.2018
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The invention discloses a test method for denoising earphones. The method comprises two microphone pickup earphones and a microphone for test. A microphone (1) is used for picking up audio signals generated by an earphone left loudspeaker. The microphone (2) is used for picking up the audio signals generated by an earphone right loudspeaker. The microphone (3) is located out of the denoising spaceof the earphones. Under different conditions, comparison of frequency response of the earphones before and after the denoising is carried out. Physical isolation denoising and circuit isolation denoising can be tested. The dependence on a test environment can be reduced. The test can be applied to a production line. The test efficiency can be improved. An accurate test result can be obtained. A denoising characteristic of the earphones can be directly tested without isolating environment sounds. The test convenient and test efficiency are improved. The relatively accurate test result can be obtained. 本发明公开种降噪耳机的测量方法，