如何将音频信号转换为电信号

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select * from tbl_Articles WHERE ArticleID=3382115 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3382115 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3382115 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1066238,1303860,1052195,1115233,1120344,1070558,1085874,1079307,2154945,1063799,3391409,1096743,1965549,1079051,2490448,2595929,2595852,2251162,2089099,2532868,1090396,796153,676040,286030,1638759,1873587,706096,352963,2891315,1753047) ORDER BY field (ArticleID,1066238,1303860,1052195,1115233,1120344,1070558,1085874,1079307,2154945,1063799,3391409,1096743,1965549,1079051,2490448,2595929,2595852,2251162,2089099,2532868,1090396,796153,676040,286030,1638759,1873587,706096,352963,2891315,1753047)