Gridding 3D sound field sampling method and system

A gridded, 3D technology, applied in stereo systems, quasi-stereo systems, electrical components, etc., can solve the problems of lack of separation, lack of 3D presence, lack of realistic quality, etc., to achieve the effect of clear effect

CN111405456AActive Publication Date: 2020-07-10FERD MANSON MULTIMEDIA TECH SHANGHAI
5 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-07-10

Smart Images

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

Abstract

The invention relates to the technical field of sound field sampling and construction, in particular to a gridding 3D sound field sampling method. The method comprises the following steps: measuring and recording swept-frequency signal data of each measuring point corresponding to each sound source through a sound pickup so as to obtain pulse response data according to the swept-frequency signal data, and obtaining the pulse response data of each measuring point to any position between two adjacent sound sources through interpolation calculation. According to the method provided by the invention, the position selection of a virtual sound source in the sound source area is not limited; the sound source and the listening position in a music hall can be infinitely positioned and selected; when music is manufactured later or an on-site virtual sound field is reconstructed, the optimal recording and sound mixing position can be found by selecting the proper virtual sound source and sound listening position, for example, the musical instrument is slightly moved backwards on a stage to obtain better balance or be closer to obtain a clearer effect, and a music meeting similar to the scenecan be listened to in the environment of a virtual music hall.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of sound field sampling and construction, in particular to a gridded 3D sound field sampling method and system. Background technique

[0002] The design of a concert hall is different from that of general buildings, and the acoustic effect is considered first. Every concert hall has its unique acoustic effects, such as the world-famous Berlin Philharmonic Hall, Vienna Concert Hall, Amsterdam Concert Hall, Boston Symphony Hall, etc., have attracted much attention because of their unique acoustic effects.

[0003] In order to record and reproduce music in places such as concert halls, the prior art generally adopts a convolution sampling reverberation method or an algorithmic reverberation method. The sense of hearing with convolution reverb can be close to lifelike, but the sampling and sense of hearing are static. The sound field sampling technology in convolution reverberation is mainly based on the acqui...

Examples

Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing, and the structure and principle of this device are very clear to those skilled in the art. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The inventors of the present application have found that in a concert hall, on the one hand, the performers on the stage can listen to the sound of their own performance in real time at their respective performance positions through the acoustic design of the concert hall, and then decide how they will perform in this concert hall. to play. In the auditorium, on the other hand, each seat is receiving a unique sense of hearing from the stage position of each instrument, which is actually the direct sound from the position of the player's instrument plus the sound triggered by that position. A comprehensive auditory effect forme...