aec Gain 公式

maxGain=max(A_dB−Targ,(k−1)(D_dB−A_dB)+k2k+A_dB−Targ)

diff=(k−1)(D_dB)+k/2k?=B

log2(1+ex)=log2(1+2(log2(e)∗diff))=log2(1+ediff))

最大增益为 maxGain 决定。

65536∗100.05(Target+Blog(e−kA+e−kB)−log(1+e−kB)log(11+ekB))

=65536∗100.05(Target+Blog(1+ek(B−A))−log(1+ekB)−log(1+ekB))

=65536∗100.05Target∗10(0.05Blog(1+ek(B−A))−log(1+ekB)−log(1+ekB))

=65536∗100.05Target∗100.05B(1−log(1+ek(B−A))log(1+ekB))

=65536∗100.05(Target+B)∗10−0.05Blog(1+ek(B−A))log(1+ekB)