coolies

I use 4 speakers in analog output by the front and rear. I was reading you can maybe do this with spdif 4 channel instead. I don't think this is supported but is possible?

Also I installed the 3542 as they included AC3 passthrough, and I have a simple PC. Usually using AC3FILTER set to SPDIF causes the immediate rebooting of the system, but it actually worked set to SPDIF and ac3 passthrough mode was also set in the mixer. I don't know about DTS yet, but read elsewhere this is not possible. I did do that however in Linux.

I am a bit confused about how resampling and bit depth conversions occur within the DSP.

Russ

I am not completely sure what you are asking. You cannot get more than 2 channels via SPDIF unless it is compressed (e.g. AC3). However, on many card models, there are multiple SPDIF outputs for use with some digital speaker systems. They work basically the same way as your analog speakers, except the signal is sent to the speakers via the separate SPDIF outputs, and DACs in the speaker system convert the signals to analog.

Digital Connections, SPDIF and Dolby Digital Info

Yeah, sometimes the kX AC3 decoder causes BSOD's.

I can't help you there, as I do not know all the details. I suggest reading the following:
kX Project -- Technical Guide to Playback and Recording
It should give you some information, but it is not completely up to date....

coolies

Actually I came across the 4 channel spdif issue when reading about the live card history and at one point I think they had a 4.0 sound setup around it. But it does seem that SPDIF can hold either 2 or 4 channel audio data as per:

S/PDIF - Wikipedia, the free encyclopedia