#9 No sound from C channel

[Anonymous]

Using a 6-ch AAC audio I'm not able to ear any sound
from the central channel. The sound of the central
channel is splitted to the L and R channel.
I know the system is working correctly because if a try
with the 6-ch AC3 from which I generate the 6-ch AAC
using ac3filter I ear sound from central channel properly,
but the same configuration with matrix mixer doesn't
work.
I'm using Windows XP Professional SP1, My sound card is
a creative Sound Blaster Platinum and I use a creative 5.
1 sound system from Cambridge.
The player used (it'is a matroska file) is The Core Media
Player.
Under the registry the key
HKEY_CURRENT_USER\Software\MatrixMixer I see a value
predefined, REG_SZ not imposted.
Speaker configuration is 5.1 with decoder and digital and
analogic output.
I don't know how to use GraphEdit but if I look at the
equalizer of matrix mixer I see 6 ch in input and (it
seems) 6 ch in output, but mapping of central channel is
not correct.
Version of MM used is the 0.30b

[Valex]

Logged In: YES
user_id=623002

Send me your [HKEY_CURRENT_USER\Software\MatrixMixer]
registry key...