Time profit adjustment based on the high band signal characteristic

Title:

Time profit adjustment based on the high band signal characteristic

Document Type and Number:

Japanese Patent JP6196004

Kind Code:

B2

Abstract:

The present disclosure provides techniques for adjusting a temporal gain parameter and for adjusting linear prediction coefficients. A value of the temporal gain parameter may be based on a comparison of a synthesized high-band portion of an audio signal to a high-band portion of the audio signal. If a signal characteristic of an upper frequency range of the high-band portion satisfies a first threshold, the temporal gain parameter may be adjusted. A linear prediction (LP) gain may be determined based on an LP gain operation that uses a first value for an LP order. The LP gain may be associated with an energy level of an LP synthesis filter. The LP order may be reduced if the LP gain satisfies a second threshold.

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Inventors:

Atti, Benkatraman S.
Krishnan, Venkatesh
Legend Run, Bibek
Chevy Yam, Benkata Subraman Yam Chandra Sekar
Subasinha, Subasinha Shaminda

Application Number:

JP2016575153A

Publication Date:

September 13, 2017

Filing Date:

June 05, 2015

Export Citation:

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Assignee:

QUALCOMM INCORPORATED

International Classes:

G10L19/02; G10L19/16; G10L21/0388

Domestic Patent References:

JP2011058752A1
JP2008535024A

Attorney, Agent or Firm:

Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Takashi Okada

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