改变声音信号采样频率。应分别考虑由低到高和由高到低，最好包括声音采集和回放等功能。-To change the audio signal sampling frequency. Should be considered separately from low to high and high to low, preferably including audio capture and playback functions.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.007624s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.091317s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002267s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001939s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002259s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003713s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002007s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003761s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014832s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002564s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 4852 [ RunTime:0.001356s ]
