Auto-calibrating in-ear headphone

An in-ear, earphone technology, applied in earphone/earphone accessories, internal hearing earphones, earphones to reduce ambient noise, etc., can solve the problem of not taking into account the individual characteristics of the user's ear, etc.
CN113727232APending Publication Date: 2021-11-30HARMAN INT IND INC
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARMAN INT IND INC
Publication Date
2021-11-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

Disclosed is a method for calibrating an in-ear headphone to improve the frequency response heard by a user. The method including generating a sound signal and playing the sound signal at a driver when the in-ear headphone is placed within a user's ear canal, receiving a reflected sound signal at a first microphone, generating a frequency response based on the reflected sound signal, generating the user's ear drum response based on the frequency response, generating a second sound signal, modifying the second sound signal based on the user's ear drum response, and playing the modified second sound signal at the driver.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] This document generally relates to an automatic calibration method of incompetent earphone and a corresponding device. Calibrate the frequency response used to improve users. Background technique

[0002] With the increased development of technologies in the sound industry, it is possible to reproduce high quality sound from smaller and more complex drives in the headset. However, due to individual features of the user's ear (such as specific dimensions and shapes in the ear canal, how many sounds are absorbed in the user's ear canal), the user will receive different frequencies at their diaphragm. In order to achieve optimization and similar frequency response for all users, the headset should be calibrated (ie, separately equalize) the headset. The headphone transfer function (HPTF) describes how sound is filtered on the path from the sound source to the tympanic membrane. By using the appropriate separate HPTF, the HPTF can be used as a filter to balance...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More