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我们使用PCM1862DBTR，发现内部的高通滤波是DSP2完成，滤波器的系数不知道怎么修改？
我们遇到将模拟数字硅麦通过差分方式接入PCM1862，采集的音频数据的DC offset（0.005％）有一定的偏移，想通过配置高通滤波消除。
