Audio regeneration method

Details Audio regeneration method Audio regeneration method

2008-09-10

2011-12-06

Azad, Abul K (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

Reexamination Certificate

active

08073687

ABSTRACT:
According to an aspect of an embodiment, a method for regenerating an audio signal including a low frequency component and a high frequency component by decoding a coded data including a first coded data and a second coded data, the method comprising the steps of: generating the low frequency component; generating the high frequency component; determining whether the low frequency component has transient characteristics or not; generating a low frequency correction component by removing a stationary component when the audio signal has the transient characteristics; generating a corrected high frequency component by correcting the high-frequency component on the basis of the duration of the low frequency correction component when the audio signal has the transient characteristics; and regenerating the audio signal by synthesizing the low frequency component with the corrected high-frequency component.

REFERENCES:
patent: 7769584 (2010-08-01), Oshikiri et al.
patent: 7983904 (2011-07-01), Ehara et al.
patent: 8010352 (2011-08-01), Son et al.
patent: 2005/0267744 (2005-12-01), Nettre et al.
patent: 2005-338637 (2005-12-01), None

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