When playing in 2 player matches, only one team will have sound.

This only happens when both players have the same "voice". Is there any way to fix this? I'm going to try to copy/paste the sound files into a differently named folder to see if that will produce good results.

Supposing that doesn't work, is there a patch/ solution for this?

I can't reproduce this. Could you post your team file? (User\Teams\wg.wgt)

I was wondering about this also, not knowing exactly what was happening but now I understand after reading this topic.

All my 3 teams have same voices, and when playing on offline, only one of them have sounds. Although, I'm using .28 but this didn't happen like .. 5 months ago.

Funny though, I tried deleting those teams and created the default teams and named them as 1-UP and so on, then chose the same options as my original teams had, and they did have voices on all of them ..

See if you can reproduce it with this team file, although I'm not the OP we have the same problem ..