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Re: Cant get my 2 channel CDs to play in 5.1
th3at3rguy #266098 07/14/09 04:03 AM
Joined: May 2002
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axiomite
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 Originally Posted By: th3at3rguy
Hi everyone I finally got ALL my speakers Axiom m22s up front VP100 for the center and the 2 QS8s and EP175 sub. Everything works fine so far my Sherwood R772 and new Oppo player are great BUT... I cant get any of my 2 channels Cds to play in 5.1 I tried every surround setting on my receiver with no luck. I have the Oppo setting on bitstream and its hooked up via HDMI. I do have the analog 5.1 cables if I hooked them up would that work to get 5.1 on my 2 channel CDs? My SACds work fine just not my 2 channel. I am hoping I just have it set wrong or something because I am VERY green to all of this.

If i read all this right i would agree with JohnK and others.
Regular cds only have 2 channels of sound.
If you want to get 5.1 channels from them, you have to select some type of DSP in your receiver like Dolby Pro Logic II:Music or All Channels.
SACDs and DVD audio discs have a recording for all 5 distinct channels and clearly you have your system hooked up correctly for it to recognize that.
Regular cds only have 2 recorded channels. A DSP extracts or sends info to the surround and subwoofer speakers.


"Those who preach the myths of audio are ignorant of truth."
Re: Cant get my 2 channel CDs to play in 5.1
Ken.C #266100 07/14/09 04:17 AM
Joined: Feb 2009
Posts: 3,466
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No, you're right. Bitstream for CD would be PCM--er... \:\)

Bitstream means the output is as the bits appear on the disc, they are just streamed off. It really doesn't apply to formats which are already in their most simple form. It is meant for encoded formats which are then transported to the receiver for decoding.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
Re: Cant get my 2 channel CDs to play in 5.1
ClubNeon #266143 07/14/09 06:17 PM
Joined: Jan 2002
Posts: 3,270
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Hi,

I think if you have HDMI connected, then the Oppo will only send 2-channel PCM to the Sherwood, which may not let you switch that to DPLII.

One alternative for CD playback would be to use an optical or digital coaxial connection to a different input on the Sherwood and then set the Oppo to RAW or bitstream. Use that input for playing CDs, so the Oppo will just send the 2-channel digital signal to the Sherwood, then you could choose stereo or DPLII for CD playback. But you'd have to remember to re-set the Oppo to PCM for HDMI playback, otherwise, it will send a Dolby Digital 5.1 downmix via the optical/coaxial cable to your Sherwood.

This may drive me to drink!

Regards,
Alan


Alan Lofft,
Axiom Resident Expert (Retired)
Re: Cant get my 2 channel CDs to play in 5.1
alan #266146 07/14/09 06:43 PM
Joined: Sep 2004
Posts: 11,458
shareholder in the making
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C'mon, Alan... I need one too and I'm buying...


::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
Re: Cant get my 2 channel CDs to play in 5.1
MarkSJohnson #266181 07/15/09 12:40 AM
Joined: Mar 2005
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axiomite
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axiomite
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 Originally Posted By: MarkSJohnson
...and I'm buying...


In that case, I'll see you there!


***********
"Nothin' up my sleeve. . ." --Bullwinkle J. Moose
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