- Patent Title: Temporal gain adjustment based on high-band signal characteristic
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Application No.: US14731276Application Date: 2015-06-04
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Publication No.: US09626983B2Publication Date: 2017-04-18
- Inventor: Venkatraman S. Atti , Venkatesh Krishnan , Vivek Rajendran , Venkata Subrahmanyam Chandra Sekhar Chebiyyam , Subasingha Shaminda Subasingha
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Toler Law Group, PC
- Main IPC: G10L19/12
- IPC: G10L19/12 ; G10L19/032 ; G10L19/06 ; G10L21/0224 ; G10L25/12 ; G10L21/038 ; G10L19/00 ; G10L19/24 ; G10L19/02

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.
Public/Granted literature
- US20150380007A1 TEMPORAL GAIN ADJUSTMENT BASED ON HIGH-BAND SIGNAL CHARACTERISTIC Public/Granted day:2015-12-31
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