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Audio processing device and audio processing method

An audio processing and audio technology, applied in the direction of frequency response correction, speaker distribution signal, electrical components, etc., can solve problems such as restricting audio quality, and achieve the effect of enhancing audio quality

Inactive Publication Date: 2017-06-13
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to enhance audio quality by configuring a DSP (Digital Signal Processor) using limited computing resources, the limitation of computing resources in correcting the audio output of each speaker constrains the enhancement of audio quality

Method used

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  • Audio processing device and audio processing method
  • Audio processing device and audio processing method
  • Audio processing device and audio processing method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0042]Embodiments of the present technology (hereinafter referred to as embodiments) are described. Note that the description is made in the following order.

[0043] 1. Example

[0044] 2. First modified example

[0045] 3. Second modified example

[0046] 4. Third modified example

[0047] 5. Fourth modified example

[0048] 1. Example

[0049] [Example of structure of output unit of audio processing device to which related art is applied]

[0050] Before describing the output unit of the audio processing device to which the embodiment of the present technology is applied, the structure of the output unit of the audio processing device to which the related art is applied will be described. figure 1 is a diagram for describing an example of the structure of an output unit of an audio processing device to which a related art is applied. figure 1 The output unit outputs audio with enhanced audio quality based on the input audio signal.

[0051] The output unit 1 ou...

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Abstract

The invention discloses an audio processing device, an audio processing method, a recording medium and a program. The audio processing device includes: a plurality of speakers for outputting audio for each frequency band; a correction filter for correcting an audio signal including a plurality of frequency bands according to characteristics of the plurality of speakers; and a plurality of frequency band division filters and a device for dividing the audio signal corrected by the correction filter into frequency bands of the speaker such that a phase difference of phase characteristics is about 0 degrees or about 180 degrees. The correction filter is an inverse filter set based on an impulse response of audio output from the plurality of speakers for each frequency band via the plurality of band division filters.

Description

technical field [0001] The present technology relates to an audio processing device, an audio processing method, a recording medium, and a program, and in particular, to an audio processing device, an audio processing method, a recording medium, and a program that allow audio output with high audio quality. Background technique [0002] In designing an acoustic device such as a multi-way speaker for outputting audio for each of a plurality of bands, the acoustic characteristics of the entire acoustic device are measured in advance to enhance the audio of the output audio by an inverse filter or equalization Quality techniques have been widely disseminated. [0003] In the related art, when the frequency band is widened for reproduction while frequency amplitude characteristics and frequency phase characteristics of a plurality of speakers are disturbed, audio quality deteriorates. It is therefore considered that audio quality can be enhanced by correcting the frequency ampl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/04
CPCH04R3/04H04R3/14H04S1/005
Inventor 今誉
Owner SONY CORP