How to change fps to 16 in minimax H3

Because 24fps is too slow，So i want to change generate fps to 16. I tried to change max(5, round(a * 24)) + (5 - (max(5, round(a * 24)) % 17)) % 17 to max(5, round(a * 16)) + (5 - (max(5, round(a * 16)) % 17)) % 17, but I found that the audio is obviously shorter than the video. For example, 5s video only contain 3s audio.
So i want to know how to generate a 16fps video

Start by locating the code path containing the displayed max(5, round(a * 24)) expression and inspect how video frame counts and audio duration are coupled. Reproduce the reported 5-second video and 3-second audio mismatch at 16 fps, then verify that the generated video and audio durations match.

Written by the indexing model from the issue text.