Unlock instant, AI-driven research and patent intelligence for your innovation.

Holographic stereo loudspeaker

A loudspeaker and stereo technology, applied in the direction of electrostatic transducer speakers, sensors, electrical components, etc., can solve the problem that the speaker cannot realize holographic stereo playback

Active Publication Date: 2017-01-25
陈立康 +2
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The invention provides a holographic stereo speaker to at least solve the problem that the speaker in the prior art cannot realize holographic stereo playback

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Holographic stereo loudspeaker
  • Holographic stereo loudspeaker
  • Holographic stereo loudspeaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] In this embodiment, the finished product is used to assemble the holographic three-dimensional moving coil speaker. A hollow spherical box made of speaker material is used to open a round hole at the position of the space equalization four vectors, and four traditional full-band high-compliance speakers are installed in the round hole. , forming a closed space. The definition of directionality is the same as the above example. This embodiment can be realized by assembling existing finished loudspeakers, and is easy to manufacture. Since the closed inner space has strong elastic "damping" for vibration (in fact, it is the conversion of sound power), the relationship between the volume of the box and the frequency should be considered during production. A larger volume has a lower resonance frequency. If the original volume is reduced The speaker's voice coil support (elastic wave) and the damping of the cone edge structure (that is, increasing compliance) can further im...

Embodiment 2

[0069] Figure 15 is a schematic diagram of the first structure of a holographic stereo moving coil speaker according to an embodiment of the present invention, Figure 16 It is a schematic diagram of the second structure of the holographic stereo dynamic speaker according to the embodiment of the present invention, as shown in Figure 15 and Figure 17 As shown, the traditional loudspeaker frame is changed from a conical shape to a shallow basin regular triangle, and four speaker frame frames can be assembled to obtain a regular tetrahedral structure. There is no air gap at the joint of the pot frame. The magnetic circuit structure can be installed inside or outside. The design of the cone has also changed from a cone to a triangular shallow cone. The voice coil support and the cone edge adopt a high compliance structure. A suitable lead bracket is reserved on the holographic stereo moving coil speaker. After assembly, a stable fixing bracket perpendicular to the opposit...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a holographic stereo loudspeaker. The holographic stereo loudspeaker comprises multiple loudspeaker bodies and a supporting structure, wherein the supporting structure is used for supporting the multiple loudspeaker bodies, so that equivalent working surfaces of the multiple loudspeaker bodies are located on one surface of a regular polyhedron, and the center of the equivalent working surface of each loudspeaker body coincides with the center of the surface corresponding to the equivalent working surface. According to the holographic stereo loudspeaker, the sound wave strength and phase generated in each direction are different, a function of playing back sound source wave fields in single-point positions in upper, lower, left, right, front and back directions is realized, real direction features of field wave fields can be simulated in a certain range, more than two holographic stereo sound playing systems can generate a larger range of physical sound fields, so that the stereo sound effect is realized. The holographic stereo audio technology adopts physical imaging and out-of-ear imaging and can realize a stereo audio effect which do not change with listening positions and postures and has left, right, high, low and depth three-dimensional space expression. The holographic stereo loudspeaker is the representation technology of field physical sound field and is applied to the final link of the holographic stereo audio technology.

Description

technical field [0001] The invention relates to the field of audio technology, in particular to a holographic stereo speaker. Background technique [0002] When stereo imaging of sound is realized, there are two ways of thinking: simulating biological sensory imaging and physical wave field reproduction. [0003] The biosensory imaging method is to simulate the difference in the wave field at the positions of the two ears of the human body, so that the brain can get the feeling of the position of the sound source. The current technology is mainly realized by the difference in left and right volume, but in fact, it has not really realized the reproduction of the wave field. At present, there is a head-mounted holographic audio technology that simulates the sound field around the human head to achieve sound pickup and playback in the front, rear, left, and right. Affect the presence and comfort of the listener. [0004] The physical wave field reproduction method is to repr...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04R9/08H04R19/02
CPCH04R9/08H04R19/02
Inventor 陈立康陈雯箐吴小洲
Owner 陈立康