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Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound

一种多声道、声道的技术，应用在双声道系统、立体声系统、电气元件等方向，能够解决没有生成反射声音等问题

Inactive Publication Date: 2007-07-18
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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Problems solved by technology

[0008] However, although the system of Figure 1 provides a stereophonic effect by localizing multiple virtual sound sources, it does not generate reflected sound to create a spatial effect that the listener can perceive

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  • Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound
  • Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound
  • Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound

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Embodiment Construction

[0032] Reference will now be made in detail to embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements. The embodiments are described below in order to explain the present general inventive concept by referring to the figures.

[0033] FIG. 2 is a block diagram illustrating an audio reproducing device to which a stereo sound generation device according to an embodiment of the present general inventive concept is applied.

[0034] The audio reproducing apparatus of FIG. 2 includes a decoder 210 , a stereo generation unit 220 , left and right channel amplifier units 230 and 240 , and left and right channel speakers 250 and 260 .

[0035] The decoder 210 decodes an audio bit stream input from an audio generating device such as a DVD reproducing device into 5.1 channels, that is, a left channel, a right channel, a center channel, a left surround channel, a right surro...

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Abstract

The present invention provides a stereo generating method and device, the multiple tone channel aural signal which is reproduced by a plurality of mediums such as DVD video frequency and DVD audio frequency generates stereo with two tone channel head earphone, earphone or speaker. The stereo generating method for general two tone channel stereo with the multiple tone channel aural signal comprises the following procedures: respectively multiplying each multiple tone channel aural signal by corresponding gain values different from one another; generating the reflection sound by exerting delay value different from one another to the corresponding tone channel signal multiplied in the multiplication unit; adding the reflection sound of each tone channel generated in the delay filter unit; and generating a plurality of reflection sound by the transmitting sound added in the addition unit.

Description

technical field [0001] The present general inventive concept relates to a stereophonic sound generating device, and more particularly to a stereophonic sound generating method and apparatus using a 2-channel head Wear headphones, earphones, or speakers for stereo sound. Background technique [0002] Recently, a technology has been and is being implemented that allows users to listen to 3D stereo sound only with headphones, without the need for speakers that support 5.1 channels. [0003] The home theater system outputs sound through 5 speakers. However, these sounds do not always reach the listener's ears directly, but some of these sounds are reflected by walls or furniture in the room and then reach the listener's ears. When all sound signals reach the listener's ears, the brain receives all these sound signals and senses them as stereo. [0004] In order to achieve this stereo sound with only ordinary headphones, a stereo sound generation system based on processor-enco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S3/00H04S7/00
CPCH04S2400/01H04S3/00H04S1/00
Inventor 千仁圭
Owner SAMSUNG ELECTRONICS CO LTD
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