I did experience something similar after compiling the latest code. Somehow there was an older set of core files that I used. I recompiled right afterwards with #1.54-stable-release and the problem was gone (as far as I...
Hi Eef, I think you are referring to MEL scale.
I think it would become quite hard to determine the species since all batworkers are used to the linear scale (All books and other images I have seen use linear...