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3D8 stereo amplifying systems

A sound reinforcement system and stereo technology, applied in the direction of sound reinforcement systems, stereo devices, electrical components, etc., can solve problems such as time difference, difficulty in sound reinforcement system playback, and limited stereo playback area

Inactive Publication Date: 2004-02-04
陈健俊
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  • Abstract
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Problems solved by technology

Since the position of the sound image is determined by the time difference and intensity difference of reaching both ears, the stereo playback area is limited, resulting in a two-way stereo playback system that can only obtain good stereo effects in home or small sound reinforcement occasions.
At present, the recording and playback of stereo sound is developing from stereo to surround sound, such as in the recording and reproduction of movie sound, but the playback in the sound reinforcement system is difficult

Method used

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  • 3D8 stereo amplifying systems
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Examples

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Embodiment Construction

[0010] as follows figure 1 Shown is a specific sound reinforcement mode with 3D8 type, which is just one of the implementation forms. The system is divided into two parts, above the dotted line is the part of the main sound reinforcement system, and below the dotted line is the part of the effect sound system. Each of the two parts uses a mixer. The main mixer is responsible for the signal input from music, singing or speech. The effect sound mixer mainly controls the effect sound from the eight-track recorder, and then replays it to each 8-channel sound reinforcement. aisle. The 3 sound reinforcement channels of the main sound reinforcement system are left, center and right, through a mixing device, such as a matrix processor, and 5 channels of effect sound to complete the 8-channel sound reinforcement. according to Figure 2~Figure 4 Position the loudspeakers at the locations shown.

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Abstract

3D8 is a stereo acoustic amplifying system. Addition to three main channels, namely left, middle and right channels, of the basic acoustic amplifying system, five effect channels are added, including left and right ambient voice channels, top ambient voice channel and front and back stage ambient voice channels. Three main acoustic amplifying channels, including the sub-low-frequency channel, perform basic speech and music amplification, and five ambient voice channels are used to provide various effect voices of performances such as traditional opera, music opera, modern drama, sketch and like.

Description

Technical field [0001] The invention relates to a 3D8-type 8+1 channel stereo mode, which is mainly used in sound reinforcement systems in multifunctional theaters. Background technique [0002] In order to obtain a stereo experience, people are trying to figure out the human ear's discrimination mechanism for the position of the sound source, and even the impact of the human body's head, shoulders, and outer auricle on sound localization when listening to sound. Since the position of the sound image is determined by the time difference and intensity difference between the two ears, the stereo playback area is limited, resulting in a two-way stereo playback system that can only obtain good stereo effects in homes or small sound reinforcement occasions. At present, the recording and playback of stereo sound is developing from stereo to surround sound, such as in the recording and reproduction of movie sound, but the playback in the sound reinforcement system is difficult. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R5/00H04R27/00
Inventor 程佳能李志良林华冠姚维南泰念锋杨毅文
Owner 陈健俊
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