I'm using Total Video Converter to convert some of my video files to .mp4 files supported in my player (SA2VBE04K/02).
I choose a profile "MPEG MP4" then in advanced settings, change video codec to JMPEG, bitrate to 300-512 kbps and framerate to 15-30 fps, and resolution to 128x128.
After conversion, it plays ok in my PC, but not in the player. I think, there is something incorrect in audio codec settings, but I don't know how to change it (I tried to change Audio Codec from AUTO to MP3 and bitrate to 96/128/256/320 but it's not working).

What settings should be correct? Why the video is not working properly (I see only video without sound).

Thanks for the answer