Invention Application
- Patent Title: TEMPORAL GAIN ADJUSTMENT BASED ON HIGH-BAND SIGNAL CHARACTERISTIC
- Patent Title (中): 基于高频信号特征的时间增益调整
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Application No.: US14731276Application Date: 2015-06-04
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Publication No.: US20150380007A1Publication Date: 2015-12-31
- Inventor: Venkatraman S. Atti , Venkatesh Krishnan , Vivek Rajendran , Venkata Subrahmanyam Chandra Sekhar Chebiyyam , Subasingha Shaminda Subasingha
- Applicant: QUALCOMM Incorporated
- Main IPC: G10L19/12
- IPC: G10L19/12

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
- US09626983B2 Temporal gain adjustment based on high-band signal characteristic Public/Granted day:2017-04-18
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