Log volume control problems


I'm trying to obtain a log style volume control with ADAU1701.   I used a log LUT along with a pot on ADC0, multiplied by N-1 to obtain what I believe to be the correct input for the LUT.   However, I am not getting hardly any output at all.   Full volume is very, very low.   If I connect ADC0 directly to the lookup block, it works better but I get maybe 50% volume at max.   If I connect ADC0 directly to the volume control (loudness block), it works fine but is not log.

Could someone show me what I'm doing wrong?

Thank you!