Invention Grant
US08396574B2 Audio processing using auditory scene analysis and spectral skewness
有权
使用听觉场景分析和频谱偏度的音频处理
- Patent Title: Audio processing using auditory scene analysis and spectral skewness
- Patent Title (中): 使用听觉场景分析和频谱偏度的音频处理
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Application No.: US12668741Application Date: 2008-07-11
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Publication No.: US08396574B2Publication Date: 2013-03-12
- Inventor: Michael Smithers , Alan Seefeldt
- Applicant: Michael Smithers , Alan Seefeldt
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- International Application: PCT/US2008/008592 WO 20080711
- International Announcement: WO2009/011827 WO 20090122
- Main IPC: G06F17/00
- IPC: G06F17/00

Abstract:
A method for controlling the loudness of auditory events in an audio signal. In an embodiment, the method includes weighting the auditory events (an auditory event having a spectrum and a loudness), using skewness in the spectra and controlling loudness of the auditory events, using the weights. Various embodiments of the invention are as follows: The weighting being proportionate to the measure of skewness in the spectra; the measure of skewness is a measure of smoothed skewness; the weighting is insensitive to amplitude of the audio signal; the weighting is insensitive to power; the weighting is insensitive to loudness; and any relationship between signal measure and absolute reproduction level is not known at the time of weighting; the weighting includes weighting auditory-event-boundary importance, using skewness in the spectra.
Public/Granted literature
- US20100198378A1 Audio Processing Using Auditory Scene Analysis and Spectral Skewness Public/Granted day:2010-08-05
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