[SpeedRacer]

Any audiophiles in the MacNN ranks?

Here's the deal... i am looking to setup a low-budget home theater setup using an older Powermac 8500 and 20" Sony display i have laying around. Recognizing the obvious limitations of using a Mac for surround/Dobly playback i figured that i could just use the 8500 as an intermediary between a dedicated A/V source (a VCR) to a dedicated A/V processing unit and speakers (the Dolby Pro-Logic reciever and speakers actually processing and outputting the signals).

Being a neoaudiophile myself am i missing something seeing the on-board S-video and composite in/out jacks on the 8500 and thinking i could simply input from the VCR to the 8500 and output from the 8500 to the receiver? In this setup the output i am getting is definitely not Dolby sound output to the reciever... yet all i am doing is using the 8500 to route the audio from one source to another through the on-board audio jacks. Does the very act of running through the 8500's A/V ports filter the audio out somehow?

Assuming i am missing the obvious does anybody will an easy explanation on this one?

Speed

[kidtexas]

Routing thru the mac shouldn't affect the Prologic signal, since prologic is just encoded of normal stereo channels. Not to offend, but the VCR must be stereo capable...

I don't think the mac would mix the L-R inputs into Mono, then split them again. This would kill the Prologic encoding.

[SpeedRacer]

Originally posted by kidtexas:
<STRONG>Routing thru the mac shouldn't affect the Prologic signal, since prologic is just encoded of normal stereo channels. Not to offend, but the VCR must be stereo capable...
</STRONG>

Yup, the VCD is definitely stereo.
Running directly VCR-Receiver = great sound,
running VCD-8500-Receiver = horrible sound.

<STRONG>

I don't think the mac would mix the L-R inputs into Mono, then split them again. This would kill the Prologic encoding.</STRONG>

Agreed... exactly what i don't understand... how could the Mac be muxing up the sound just by routing from inputs-outputs?

Speed

[ 02-27-2002: Message edited by: SpeedRacer ]