Invention Grant
US09025776B2 Decorrelating audio signals for stereophonic and surround sound using coded and maximum-length-class sequences
有权
使用编码和最大长度级序列将立体声和环绕声的音频信号相互关联
- Patent Title: Decorrelating audio signals for stereophonic and surround sound using coded and maximum-length-class sequences
- Patent Title (中): 使用编码和最大长度级序列将立体声和环绕声的音频信号相互关联
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Application No.: US13522750Application Date: 2011-01-31
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Publication No.: US09025776B2Publication Date: 2015-05-05
- Inventor: Ning Xiang , Bosun Xie , Bei Shi
- Applicant: Ning Xiang , Bosun Xie , Bei Shi
- Applicant Address: US NY Troy
- Assignee: Rensselaer Polytechnic Institute
- Current Assignee: Rensselaer Polytechnic Institute
- Current Assignee Address: US NY Troy
- Agency: RatnerPrestia
- International Application: PCT/US2011/023151 WO 20110131
- International Announcement: WO2011/094675 WO 20110804
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L21/00
Abstract:
Methods and systems for processing an audio signal are provided. The method includes generating a pseudorandom sequence and generating at least one reciprocal of the pseudorandom sequence such that the at least one reciprocal is substantially decorrelated with the pseudorandom sequence. The pseudorandom sequence and the at least one reciprocal form a set of sequences. The method further includes convolving the audio signal with the set of sequences to generate a corresponding number of output signals and providing the number of output signals to a corresponding number of loudspeakers.
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