[问答]

请问N0, N1, N2, D1, D2是对应哪几个寄存器的？

2019-8-1 10:40:45 1082 寄存器

0 Hi，我要做3段音调均衡，工作模式是adaptiver filtering, 用TIBQ计算TLV320AIC3204的 Filter Coefficients 如下面所示,我不明白N0, N1, N2, D1, D2是对应那几个寄存器的？Filter 3 BQ 、Filter 6 BQ 、Filter 9 BQ 又是那些寄存器？真是弄不明白。谢谢。 Text "* Sample Rate = 44100" Text "* Filter 3 EQ 100 Hz Fc 0.0 dB 20 Hz BW" Text "* Filter 6 EQ 1000 Hz Fc 0.0 dB 200 Hz BW" Text "* Filter 9 EQ 10000 Hz Fc 0.0 dB 2000 Hz BW" Text "* BQ: H(z) = (N0 + 2N1/z + N2/(z2)) / (32768 - 2D1/z - D2/(z2))" Text "* Filter Coefficients in format N0, N1, N2, D1, D2" Text "* 1O: H(z) = (N0 + N1/z) / (32768 - D1/z)" Text "* Filter Coefficients in format N0, N1, D1" Text "* Filter 3 BQ " 0x7FFF 0x8033 0x7FA1 0x7FCD 0x805F Text "* Filter 6 BQ " 0x7FFF 0x8315 0x7C66 0x7CEB 0x839A Text "* Filter 9 BQ " 0x7FFF 0xEFB6 0x5FE1 0x104A 0xA01F 0
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