发明名称 SIGNAL MODIFICATION METHOD FOR EFFICIENT ENCODING OF SPEECH SIGNALS
摘要 FIELD: encoding technologies. ^ SUBSTANCE: speech signal is divided on a series of frames, signal is created from speech signal in such a way, that impulses of main tine can by identified from created signal, position of last impulse of main tone of current frame and position of last impulse of main tone of previous frame are determined with link to created signal, optimal delay parameter value is determined in such a way, that delay curve of main tone, representing the change of delay of main tone in current frame, characterized by aforementioned optimal value of delay parameter, provides the least prediction error, when main tone delay curve is used for predicting position of last main tone impulse in previous frame. ^ EFFECT: ensured optimal quality and speed of sound signal transmission. ^ 5 cl, 13 dwg, 3 tbl
申请公布号 RU2302665(C2) 申请公布日期 2007.07.10
申请号 RU20040121463 申请日期 2002.12.13
申请人 NOKIA KORPOREJSHN 发明人 TAMMI MIKKO;ELINEK MILAN;LJAFLJAMM KLOD;RUOPPILA VESA
分类号 G10L19/12 主分类号 G10L19/12
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