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Sound Processing Device, Sound Processing Method, And Program

A sound processing and consonant technology, applied in speech analysis, instruments, sensor circuit damping, etc., can solve problems such as sound quality change, uselessness, speech intelligibility or intelligibility degradation, etc., to achieve high accuracy.

Inactive Publication Date: 2014-06-25
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this technique, as the SN ratio increases, the quality of the sound itself will generally be changed, and speech clarity or intelligibility tends to deteriorate
Also, noise suppression techniques are useless when the speaker is muttering indistinctly from the start

Method used

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  • Sound Processing Device, Sound Processing Method, And Program
  • Sound Processing Device, Sound Processing Method, And Program
  • Sound Processing Device, Sound Processing Method, And Program

Examples

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no. 1 example

[0052]

[0053] Embodiments of the present technology may be configured to detect consonants with high accuracy even in the presence of noise in the background by detecting consonants based on a signal with suppressed background noise. In addition, embodiments of the present technology allow the enhancement of consonants to be appropriately performed in consideration of noise by determining the enhancement amount based on the levels of the input signal, estimated background noise, and noise-suppressed signal.

[0054] figure 1 is a diagram showing an exemplary configuration according to an embodiment of a consonant enhancement device to which the present technology is applied.

[0055] The consonant enhancement device 11 receives an input signal as a sound signal, detects a consonant part from the input signal, enhances the consonant based on a result obtained by the detection, and outputs the resulting sound signal as an output signal.

[0056]The consonant enhancement dev...

no. 2 example

[0227]

[0228] Furthermore, the above describes an example in which the present technology is applied to a consonant enhancement device for detecting a consonant part from an input signal and enhancing a spectrum of a consonant. However, embodiments of the present technology are applicable to a consonant detection device configured to detect a consonant frame from an input signal.

[0229] In such a case, the consonant detection means is configured such as Figure 14 shown. exist Figure 14 in, with figure 1 Parts corresponding to parts in are denoted by the same reference numerals, and repeated descriptions of these parts are appropriately omitted.

[0230] Figure 14 The illustrated consonant detection device 61 is configured to include a time-frequency conversion unit 21 , a background noise estimation unit 22 , a noise suppression spectrum calculation unit 23 , a pitch strength calculation unit 24 , a feature quantity calculation unit 25 , and a consonant detection un...

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Abstract

The present invention provides a sound processing device, sound processing method, and program. The sound processing device includes a background noise estimation unit configured to estimate a background noise of an input signal, a noise suppression unit configured to suppress the background noise of the input signal based on a result obtained by estimating the background noise, a feature quantity calculation unit configured to calculate a feature quantity based on the input signal in which the background noise is suppressed, and a consonant detection unit configured to detect a consonant from the input signal based on the feature quantity.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Japanese Priority Patent Application JP2012-277662 filed on December 20, 2012, the entire contents of which are hereby incorporated by reference. technical field [0003] The technology relates to a sound processing device, a sound processing method, and a program. More specifically, the present technology relates to a sound processing device, a sound processing method, and a program capable of detecting consonants with higher accuracy. Background technique [0004] In recent years, with the development of an aging society, more and more people are suffering from age-related hearing loss. In age-related hearing loss, hearing sensitivity in a high frequency band tends to deteriorate, and thus there are many examples where it becomes difficult to hear speech, especially consonants. [0005] Therefore, as a technique of making it easier to hear consonants, there is a technique of e...

Claims

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Application Information

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IPC IPC(8): G10L21/02H04R27/02
CPCH04R3/002G10L21/0208G10L25/78G10L25/93
Inventor 东山惠祐
Owner SONY CORP
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