发明名称 METHOD AND ARRANGEMENT FOR SOUND RECONSTRUCTION DURING ERASURES
摘要 PROBLEM TO BE SOLVED: To disclose a method for reconstructing a data stream without generating various kinds of noise when there is an erasure while transmitting a digitized sound. SOLUTION: Digital sound information such a speech is typically transmitted in bursts or packets containing a plurality of digitized sound samples. For the reconstruction of such a digital data stream in the presence of erasures or mutes, a method and an arrangement are disclosed, in which at a data receiver having an audio processing portion (10), a plurality of successive data bursts output from a speech buffer (11) are stored into a cyclic buffer (13). During an erasure, the data stream is reconstructed by outputting into the speech buffer (11) stored bursts in their reversed order of storage. By reusing the bursts while reversing the sequence of the digitized sound samples, a substantially click free reconstruction of the data stream is obtained. An embodiment for use with a DECT telephone system is described. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007074741(A) 申请公布日期 2007.03.22
申请号 JP20060279148 申请日期 2006.10.12
申请人 TELEFON AB L M ERICSSON 发明人 BOLT JACOB HENDRIK
分类号 G10L11/00;H04B1/10;G11B20/18;H04B14/06;H04M1/00 主分类号 G10L11/00
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