@Sabrina2001 there is no need to change them... you may know each .awc have two tracks one left and one right... when you export an .awc as an .oac file and open it with notepad++ you see some codes for each channel (left and right) ...
for most of them one channel have no events and for the other channel has defined a lots of events...
just delete all the events defined for the channel and make it like the other one...
for example your .oac must like this :
Version 1 11
{
IsStream True
Stream
{
Channel ALL_THE_THINGS_SHE_SAID_LEFT
{
Headroom 16
Wave all_the_things_she_said\ALL_THE_THINGS_SHE_SAID_LEFT.wav
Events null
}
Channel ALL_THE_THINGS_SHE_SAID_RIGHT
{
Headroom 17
Wave all_the_things_she_said\ALL_THE_THINGS_SHE_SAID_RIGHT.wav
Events null
}
}
}
it's not a complete solution (there is still little small intros and talks when the song is played)... but this completely solve the songs mashup problem.