I'm trying to convert a mpeg-1 file that that is originally a PAL (352x288)
mpg file to NTSC (352x240) format

I use Tmpeg to convert the video but I read one of the guides from
this site that the audio also needs to be converted from PAL to
NTSC also (using BeSweet)

I thought we only needed to convert the video from PAL to NTSC

I'm not sure why the audio also needs to be connverted

Any help on this would be appreciated