A kind of hrtf measuring method and its measuring equipment based on head-mounted speaker system

A measurement method and technology of measurement equipment, applied in the direction of electrical components, etc., can solve the problems of not being able to accurately reflect the position information of the sound source, and not being able to conform to the HRTF characteristics more realistically, so as to achieve a good stereo sound effect
CN112218224BActive Publication Date: 2021-11-02HEAD DIRECT KUNSHAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEAD DIRECT KUNSHAN CO LTD
Publication Date
2021-11-02

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Abstract

The invention provides an HRTF measuring method based on a head-mounted speaker system and a measuring device thereof, and the measuring method is completed by the measuring device based on the head-mounted speaker system. It includes the following steps in sequence: processing the sound source signal into a test signal according to the preset HRTF; converting the test signal from the head-mounted speaker into a test sound signal and playing it to the listener; receiving the test acoustic signal to generate a measurement signal; processing the measurement signal by a processing device to generate a measurement HRTF; comparing the measurement HRTF with a preset HRTF to obtain a comparison feature, and comparing the comparison feature with the Threshold value comparison, when the compared feature value is less than the threshold value, the personalized HRTF of the listener is obtained. The invention aims at the head-related transfer function difference caused by the difference in the transmission path between the head-mounted speaker and the free-field speaker system, and realizes the measurement of the head-related transfer function when the listener wears the head-mounted speaker system.
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Description

technical field

[0001] The invention relates to the technical field of audio analysis and processing, in particular to an HRTF measurement method based on a head-mounted speaker system and a measurement device thereof. Background technique

[0002] Head-Related Transfer Function (HRTF), also known as ATF (Anatomical Transfer Function), is a sound positioning algorithm that describes the transmission process of sound waves from the sound source to the listener's ears. It reflects the structure of the human body, such as the head The comprehensive filtering results of the sound waves of the head, auricle, torso structure and gender include the location information of the sound source, which is of great significance for the reproduction of stereo sound effects and the simulation of the virtual position information of the sound source. It mainly includes binaural time difference (Interaural Time Difference, ITD) and binaural sound pressure level difference (Interaural Level Diff...

Claims

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