Audio apparatus and audio processing method

A technology of audio processing and audio equipment, which is applied in the field of audio equipment and audio processing, and can solve the problem that the volume cannot be controlled independently

Inactive Publication Date: 2010-09-08
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has the problem that the volume of the center speaker channel signal component C cannot be individually controlled

Method used

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  • Audio apparatus and audio processing method
  • Audio apparatus and audio processing method
  • Audio apparatus and audio processing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0039] 2. The second embodiment

no. 3 example

[0041] 4. Other variants

[0042]

[0043] [1-1. External structure of car audio equipment]

[0044] exist figure 2 In , reference numeral 20 denotes a car audio device used as the first embodiment of the present invention. The rectangular housing 21 is embedded in the dashboard of the car. The car audio equipment 20 has a front panel 22 of a housing 21 equipped with a power button 23, a rotary encoder 24 that can be rotated and pressed, a liquid crystal display (LCD) 25 for various displays, and a set of operation button 26.

[0045] [1-2. Circuit structure of car audio equipment]

[0046] exist figure 1 and 3 In , the same reference numerals indicate the same or corresponding parts. Such as image 3 As shown, the car audio equipment 20 as a whole is controlled by a microcomputer (CPU) 27 which reads basic programs from a ROM (Read Only Memory) (not shown) to a RAM (Random Access Memory) (not shown). out) for program execution.

[0047] Various functions of the c...

no. 2 example

[0095] [2-1. External structure of car audio equipment]

[0096] exist figure 2 In , reference numeral 30 denotes a car audio device used as the second embodiment of the present invention. The car audio device 30 is the same as the car audio device 20 used as the first embodiment, so the external structure of the device 30 will not be further discussed.

[0097] [2-2. Circuit structure of car audio equipment]

[0098] exist image 3 and 9 In , the same reference numerals indicate the same or corresponding parts. Such as Figure 9 As shown, the car audio device 30 is controlled as a whole by a microcomputer (CPU) 37 which reads a basic program from a ROM (not shown) into a RAM (not shown) for program execution.

[0099] Various functions of the car audio device 30 are realized by the microcomputer 37 reading various application programs from the ROM into the RAM and executing the application programs to realize various processing.

[0100] The car audio device 30 accomm...

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Abstract

The present invention provides an audio apparatus including: a decoding device configured to decode results of channel-by-channel reproduction of a multichannel sound source made up of at least a left channel, a right channel, and a center channel, and to down-mix the decoded results of channel-by-channel reproduction in accordance with the number of speakers configured in a speaker system without a center speaker corresponding to the center channel; an audio processing device configured to perform predetermined audio processing on the decoded results having undergone the down-mixing by the decoding device, and to get the processed results output from the speaker system; and a control device configured to control the audio processing device.

Description

technical field [0001] The present invention relates to an audio device and an audio processing method. More specifically, the present invention relates to an audio device and an audio processing method for allowing, for example, a vehicle-mounted audio device to reproduce and output a multi-channel (for example, 5.1-channel) audio signal. Background technique [0002] Generally, when AV (audio-visual) content such as a movie including multi-channel (for example, 5.1-channel) audio content is reproduced through a 5.1-channel speaker system, it may be due to the condition of the audio device in use, the surrounding environmental state, or Recording level differences prevents sound from a particular channel from being heard correctly. [0003] In this case, only the speaker volume for that channel needs to be turned up, since the number of channels found in the audio content corresponds one-to-one to the number of speakers configured in the speaker system in use. [0004] Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10H04S3/00G10L19/00G10L19/008
CPCG11B20/10527G11B2020/10601H04S3/008
Inventor 木野泰之百濑武志泽志聪彦
Owner SONY CORP
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