Audio system, audio signal processing device and method

An audio system and audio signal technology, applied in the direction of binaural system, stereo system, quasi-stereo system, etc., can solve the problem of insufficient audio effect of stereo images, and achieve the effect of enhancing the sense of depth

Inactive Publication Date: 2016-09-07
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there are often insufficient audio effects for stereoscopic images that protrude forward or recede

Method used

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  • Audio system, audio signal processing device and method
  • Audio system, audio signal processing device and method
  • Audio system, audio signal processing device and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0033] [Configuration example of audio system]

[0034] figure 1 is a block diagram of a first embodiment of an audio system to which an embodiment of the present disclosure is applied.

[0035] figure 1 The audio system 101 is configured to include an audio signal processing device 111 and speakers 112L and 112R.

[0036] As an example of an audio signal processing device provided according to an embodiment of the present disclosure, the audio signal processing device 111 enhances sounds output from speakers 112L and 112R by performing predetermined signal processing on stereo audio signals including audio signals SLin and SRin. A device with a sense of depth.

[0037] The audio signal processing device 111 is configured to include high-pass filters 121L and 121R, low-pass filters 122L and 122R, a signal processing unit 123 , a synthesis unit 124 , and an output control unit 125 .

[0038] The high-pass filter 121L extracts a high-pass component of the audio signal SLin b...

no. 2 example

[0116] Next, we will refer to Figure 8 A second embodiment of the present disclosure is described.

[0117] [Configuration example of audio system]

[0118] Figure 8 is a block diagram illustrating a second embodiment of an audio system to which an embodiment of the present disclosure is applied.

[0119] Figure 8 The audio system 201 is a system that uses actual speakers 212L and 212R instead of virtual speakers 151L and 151R. Here, in the figure, corresponds to figure 1 Parts of are given the same reference numerals, and parts having the same process are appropriately omitted to avoid redundant description.

[0120] The audio system 201 is configured to include an audio signal processing device 211 , speakers 112L and 112R, and speakers 212L and 212R. Also, the speakers 112L and 112R are arranged at the same positions as the audio system 101 , and the speakers 212L and 212R are arranged at the same positions as the virtual speakers 151L and 151R of the audio system ...

example 1

[0129] Embodiments of the present disclosure can also be applied in the case of processing audio signals whose number of channels is greater than 2 channels. Here, in the case of processing an audio signal whose number of channels is greater than 2 channels, the above-described audio signal processing does not have to be applied to all channels. For example, it is considered to apply the audio signal processing to only the audio signals of the two channels located on the left and right for the front of the image side of the stereoscopic image when viewed from the observer, or to apply the audio signal processing only to the audio signals of the two channels located on the left and right for the front and Central 2.1 channel audio signal.

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PUM

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Abstract

The present disclosure relates to an audio system, an audio signal processing device and method, and a program. The audio system includes a first loudspeaker and a second loudspeaker, which are arranged to be substantially left-right symmetrical with respect to the listening position in front of a predetermined listening position; substantially left-right symmetry at the listening position; a first attenuator that attenuates a component of an input audio signal that is equal to or less than a predetermined first frequency; and an output controller that outputs a signal based on the input audio signal from the first speaker and the second speaker. sound, and output a sound based on a first audio signal in which a component of the input audio signal equal to or lower than the first frequency is attenuated from the third speaker and the fourth speaker.

Description

technical field [0001] The present disclosure relates to an audio system, an audio signal processing device and method, and a program, and more particularly, to an audio system, an audio signal processing device and method, and a program in which the sense of depth of sound is enhanced. Background technique [0002] In the related art, in the audio world, various types of surround system technologies for realizing so-called "stereo sound" have been proposed (for example, Japanese Patent No. 3900208) and popularized in general households. [0003] On the other hand, in the video world, with the popularization of 3D (three-dimensional) televisions in recent years, it is predicted that contents for reproducing so-called "stereoscopic images" (hereinafter referred to as stereoscopic image contents) will become popular in ordinary households. Contents of the invention [0004] An audio signal accompanying such stereoscopic image content is an audio signal of a format of the rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S5/02
CPCH04S1/002H04R3/14H04R5/02H04R2205/024H04S5/02
Inventor 中野健司
Owner SONY CORP
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