Sound Woes

[Kinsy]

I have a dedicated AV reciever setup, no subwoofer (no need, plenty of bass) and 6 speakers - Front L+R, Centre, Rear L+R, and rear centre. These are connected to my AV reciever via a Coaxial cable.

 

Im having trouble with 5.1 or 7.1 sound. My amp appears to only recieve a L+R signal, and when i run the speaker tests via the nvidia utility, i only get sound from the front L+R. In CS:Source's audio tester, I get sound from my centre as well but the rear speakers make no sound.

 

Is there any way i can get the onboard sound to send a proper multi channel signal digitally? Or is this what the old Soundstorm did on NF2? (and thus not supported by the NF3 :mad: )

[sirfergy]

I assume your amp is in digital mode?

[Angry_Games]

did you go through the onboard audio control panel as well as Windows' audio control panel and make sure everything is set to digital and you tested all speakers from within the onboard control panel? (speaker wizard)

[Kinsy]

Of course.

 

I have sound working from my digital out, but the amp picks it up as L+R signal only. The amp is a Marantz SR4400 which can handle Dolby Digital, Pro Logic, Pro Logic II, DTS, DTS EX and DTS 2/Neo:6, as well as CSII and some other custom emulation modes.

 

I have an NF2 Shuttle which i connect optically. If i use its 5.1 mode, i get the same problem; if i switch it to 5.1 Dolby Digital, all is well.

 

It appears i will have to connect up to my amp using analogue ports using the 4 outputs on the soundcard for L+R, Centre, Side L+R and id imagine i could use the Rear L+R and let the amp sort out my single rear centre.