专利名称：System for comfort noise injection发明人：Xueman Li,Frank Linseisen,Kyle MacDonald申请号：US11930968申请日：20071031公开号：US08139777B2公开日：20120320
专利附图：
摘要：A noise injection system adds comfort noise to an audio signal. The systemincludes a background noise estimator that determines a spectral content of a
background noise associated with the audio signal. A comfort noise generator generatesa comfort noise signal having a random phase. A gain circuit adjusts the comfort noise
signal based on the spectral content of the background noise. A combining circuitcombines a gain-adjusted comfort noise signal and the audio signal to generate anoutput signal.
申请人：Xueman Li,Frank Linseisen,Kyle MacDonald
地址：Burnaby CA,Vancouver CA,Vancouver CA
国籍：CA,CA,CA
代理机构：Brinks Hofer Gilson & Lione
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