Auditory sensibility correction device

一种校正装置、灵敏度的技术，应用在频率响应校正、语音分析、手动音调/带宽控制等方向，能够解决不能够满足音量控制范围等问题，达到防止输出失真声音、音质好的效果

Inactive Publication Date: 2010-09-22
CLARION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, ordinary volume controllers can only achieve a certain volume control range (for example, about +6dB~12dB), and simply operating the volume controller cannot meet the requirements of realizing a wide volume control range or sound quality with sufficient loudness. Require

Method used

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  • Auditory sensibility correction device

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Experimental program
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Embodiment Construction

[0061] Now, the auditory sensitivity correction device according to the present invention will be explained. The auditory sensitivity correcting device of the present invention applies loudness processing to audio signals of different frequency bands (in this embodiment, low frequency band and high frequency band) obtained by frequency band division, in consideration of the sound source characteristics of the audio signal, Excellent sound effects are thereby added regardless of the sound source characteristics of the original audio signal.

[0062] figure 1 is a block diagram showing a schematic configuration of the auditory sensitivity correction device. The auditory sensitivity correction device 1 includes a loudness filter section (loudness processing section) 2 , a maximum value detection and maximum value holding section 3 , a gain calculation section 4 , and a gain setting section (gain setting section) 5 .

[0063] Loudness Filter Section

[0064] The loudness filt...

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Abstract

Provided is an auditory sensibility correction device which can add a preferable loudness characteristic to an output sound without depending on a sound source characteristic of an audio signal even when the audio signal has a high band or low band subjected to a loudness correction. The auditory sensibility correction device (1) includes: loudness processing means (2) which executes a loudness process on an audio signal in accordance with a band; level difference calculation means (4) which calculates a level difference between a signal level of each band and a signal level of all the bands;gain offset means (4) which performs an offset process of a gain required by the entire band signal level according to the level difference of each band; and gain setting means (5) which applies the correction gain of each band to the audios signal of each band which has been subjected to the loudness process.

Description

technical field [0001] The present invention relates to auditory sensitivity correction devices, and more particularly, to dividing an audio signal into audio signals of different frequency bands, applying filtering to these audio signals, and synthesizing the resulting audio signals so as to add loudness characteristics to the synthesized audio signals hearing sensitivity correction device. Background technique [0002] An audio reproduction device generally has a volume controller for controlling the volume of sound output from a speaker. The user operates the volume controller to appropriately control the volume of sound output from a speaker or the like. [0003] However, ordinary volume controllers can only achieve a certain volume control range (for example, about +6dB~12dB), and simply operating the volume controller cannot meet the requirements of realizing a wide volume control range or sound quality with sufficient loudness. Require. [0004] In order to meet su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/04G10L21/04H03G5/02G10L21/0264
CPCG10L21/0264H04R3/04H04R2430/01H03G9/025H04R25/35H04R2430/03G10L2021/065G10L21/0205G10L21/0364
Inventor 桥本武志
Owner CLARION CO LTD
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