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TLV320AIC3254模块怎么外接咪头采集声音

Other Parts Discussed in Thread: CC3200AUDBOOST

如图,我给cc3200audboost模块外接了一个咪头,咪头的正极和音频插头的左右声道两线相连,咪头的负极和音频插头线的地相连,但是没办法采集到声音,请问哪里出错了吗?