[DVD-o-matic] A couple questions...

Good day! One of the theatres I'm involved with is in need of a preview for a special booking we have upcoming, and the only one we had access to in a reasonable format was in 60 FPS, but since this preview is to be used with a DSS100/DSP100 which does not like anything but 24 FPS, I was attempting to use DVD-o-matic 0.87 x64 Windows version (I have also tried earlier versions before now to the same effect) to change it to 24 FPS, and the outcome was that the audio sounded at least an octave lower. As it is important for our managers to be able to do this with a minimum of fuss and perhaps as streamlined a process as possible, I was wondering if there was something I was doing wrong, or if there is a process to follow for such things. I have found this to be an issue for me before now, but I was hoping that perhaps it was simply that I have done something in error. Also, I was noticing that when I'm converting some video into DCP, DVD-o-matic will change the audio (for 23.976 FPS or 24 FPS, 44.1kHz is adjusted to 48kHz (doesn't seem to sound odd), for 29.97 FPS to 24 FPS, 44.1 kHz is adjusted to 59940Hz (becomes a lower octave, which I cannot use, 30 FPS to 24 FPS takes the audio from 44.1kHz to 60kHz (can't use), and finally 59.94 FPS to 24 FPS changes the audio from 44.1kHz to 59940Hz (also cannot use - deeper again) ( I would have thought that the 60 FPS would be even higher than 30 FPS).) Is there a reason that even if the video is at the frame rate I want, the sound still gets adjusted, and if I'm changing the frame rate, the audio resample goes up, but the sound becomes deeper? I would have thought the sound would becoming more shrill, if anything. Again, I love this program, and the efforts being put into it is amazing, and I'm willing to assume I'm messing something up. I just would like it if I didn't need to use a different program to 'pre-adjust' frame rates to get the audio to sound like the original. Thank you for all the work you do, Leslie Hartmier