CN106303787A

CN106303787A - The earphone system of reduction sound bearing true to nature

Info

Publication number: CN106303787A
Application number: CN201610902039.1A
Authority: CN
Inventors: 杨跃龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-18
Filing date: 2016-10-18
Publication date: 2017-01-04

Abstract

The present invention is by combining aspect sensor, array speaker, voice data treatment technology, audio effect processing and performance is carried out according to human ear sound location principle, it is achieved thereby that the earphone system of a kind of true to nature reduction sound bearing more true to nature than traditional multi-sound-channel earphone spatial perception, can be widely applied to the field such as augmented reality, virtual reality.

Description

The earphone system of reduction sound bearing true to nature

Technical field

Virtual reality, 3-D audio system.

Background technology

The present invention is by combining aspect sensor, array speaker, voice data treatment technology, according to human ear acoustic space Positioning principle carries out audio effect processing and performance, it is achieved thereby that a kind of more true to nature than traditional multi-sound-channel earphone spatial perception , the earphone system that sound bearing can be reduced, can be widely applied to the field such as augmented reality, virtual reality.

Summary of the invention

The present invention, according to the source of sound recognition principle of human ear, have employed first-stage dynamic left and right strength control and two grades of microcosmic sources of sound Control of azimuth, it is achieved thereby that 3-D audio true to nature.

Human ear is to experience the difference of a series of sound by left-right ear thus judges the orientation of sound, the heaviest It is poor that the aspect wanted is exactly the volume of left-right ear, if but the sound listening to left-right ear of static state, people can only differentiate Sound is to the left or to the right, can not differentiate direction and above-below direction before and after sound.So people needs by dynamically rotating Head continues, listens to dynamically the volume difference of left-right ear thus identifies the orientation of source of sound.Such as: if we experience Right side volume is relatively big, and we the most slightly deflect head, and now right side volume is the biggest, then people it may determine that this Source of sound, from right front, then passes through and is rotated further head or shift position and experiences the change of sound, we it may determine that Go out sound tangent space really come to.Therefore by volume difference judge sound to by the way of be dynamic, continuous print and change 's.

The first-stage dynamic left and right intensity control system of the present invention is exactly to use the mode dynamically processed to realize the exhibition of sound Existing.First-stage dynamic left and right intensity control system is made up of spatial orientation sensor, left and right speaker and data handling system.Space Direction sensor can use now widely used electronic gyroscope, and data handling system can be incorporated into source of sound by software and provide In equipment, such as computer, mobile phone, source of sound main frame etc..Real-time earphone space angle information is sent in by spatial orientation sensor Data handling system, data handling system in the position, space direction of face, thus calculates left and right ear by source of sound Volume and content, about driving, series speaker sends the sound of different loudness.This process is dynamic, lasting, i.e. when User by slightly deflect head identify sound come to time, spatial orientation sensor catch the most at the same time head deflection become Changing, system provides the left and right speech simulation signal meeting angle change in real time, thus realizes sound bearing loudness change true to nature.

Two grades of microcosmic sound bearings control to be to realize some source of sound sides by simulation sound bearing in the range of auricle To compensation.The secondary spatial location of human ear is trickle by vibrations perception etc. of the reflection of auricle, auricle by sound The judgement to audio direction is strengthened in change, and the space judgement of this mode is limited, is mainly used to identify daily life In the sound that cannot be judged by the first due to factors such as distance are near, speed is fast, sound is little, mosquito flight the most in one's ear Sound, it is virtually impossible to being heard by ear farther out, head rotation cannot catch up with the source of sound of so Rapid Variable Design position, institute simultaneously To judge in this way.

Two grades of microcosmic sound bearings of the present invention control to be realized by left and right array speaker, and the speaker of left and right ear divides Not by 3 identical speaker forming arrays, three speakers are triangle to be arranged in around auricle and auditory meatus.In system After providing the dynamic loudness of left and right system, according to the loudness that the loudspeaker layout each speaker of offer is different, by 3, side The superposition of speaker loudness, it is possible to utilize triangle loudness center of gravity to simulate the position of sound source.Such as, if three speakers ring Degree unanimously just can come from vertical direction with simulated sound.If it is the most weak that speaker upwards rings remaining 2 speaker, it is possible to mould Draw up sound and come from top.This simulation is real-time, dynamic equally, is built upon adding on first-stage dynamic system Control.Can arrange, such as in conjunction with the size of earphone and style: the triangular array of cover aural headphone is relatively big with auditory meatus relative to auricle, Effect is substantially just beneficial to arrange.The triangular array of In-Ear Headphones is less compared to auricle and auditory meatus, and DeGrain is the most not It is beneficial to arrange.

The present invention by with upper module and system, provide the user a kind of more life-like, effective, can reduce sound bearing Earphone system.

Claims

1., by spatial orientation sensor identification user's head direction information, according to source of sound in real time relative to position, dynamically adjust Whole left and right array speaker loudness, and by the microcosmic orientation in the range of loudspeaker array source of sound superposed simulation auricle, thus force The earphone system of true reduction sound bearing.