Originally Posted by jouko342
I'm not sure I understand. You said that the Onkyo can't process the 5.1 analog input from my HTPC, but why do AC3 and DTS sound gets processed - ie. have the crossover applied?
Compression, as in dynamic range compression? That is not directly related with bass management. So now I'm confused.
The Onkyo (like most AVRs) have a 5.1 analog input, but it has no A-D converters for that, so it stays analog. The bass management is only in DSP, so it cannot do that nor can it alter dynamics. That has to be happening wherever the DTS/DD are being decoded.
Originally you said: >>But when I test with AC3 and DTS (movie) files, the Audigy-set bass redirection at 100hz in the Onkyo works fine, and low frequencies are re-directed to the sub.<< How do you know bass redirection is turned on? Even if it is off, the LFE channel will make the subwoofer active.
Do you hear a difference in dynamics when you change bass management settings?
I'd use SPDIF, but no PC games I know outputs 5.1 audio through SPDIF, only analog. I'm trying to keep things simple, and only use one set of cables for all audio.
Understood. You can do that, and if it works as desired, no problem.
If you want the Onkyo to handle all the audio processing, you'd need something like DD Live or DTS Connect to convert the game audio to S/PDIF.