Dreamcast VGA audio question

[Smokey]

So you guys may have read i recently got my Dreamcast in HD. However, I noticed after playing for a few hours, a few games at that, the sound has a slight 'popping' noise to it and sometimes audio will drop completely.

I'm not sure if this is due to the upscaler that I have?

I have to use an adapter for the VGA audio because the upscaler only has 1 audio-in jack and not the red/white inputs for VGA audio natively on the box, so i'm wondering could that be the issue?

It's hard to explain exactly how it sounds or what the issue is but i'm hoping someone can help rectify the issue or if there could be a setting on my tv that could fix this perhaps? It's not a major issue but it can be annoying sometimes.

[Strik3r91]

i can think of auto audio volume adjusting by tv?

[Smokey]

i can think of auto audio volume adjusting by tv?

Could that be it? I might add this only occurs when I play the Dreamcast, which makes me believe it could be with the upscaler?