Have a problem with m4a encoder.

Hi, I have a problem with the m4a encoder (Lavf 58.45.100) on Audials (One 2022, and Music 2023), It look like that the recorded files have a noise and weird sound throughout the song when playing on iPod (I have the nano gen1 and classic 5.5). But this problem doesn't exist when playing on Windows.

On the other side, when I use fre:ac to encode music to m4a this problem also not happen on my iPods at all.

So, could you change the encoder for m4a (aac) file on Audials software? Because I think Lavf 58.45.100 is not suitable encoder for playing the file on iPod and iPhone.