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What is LPCM?

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1 reply to this topic

#1 of 2 OFFLINE   Dan Keefe

Dan Keefe

    Second Unit

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  • Join Date: Jun 28 2000

Posted January 12 2007 - 11:46 PM

I searched the forums back two years to try and find a thread specifically about this. I just started hearing about it in this thread. If it doesn't belong here please move it. I was almost ready to buy a Denon 3806 until I heard that it doesn't do 7.1 in LPCM. I am not clear at all what LPCM is or does. The 3806 is rated for 7.1. It has higher watts per channel than the 2807 and also it has 4 power supplies and better DACs as I understand. So before I plunk down 800-1000 bucks on something that cannot produce 7.1, could some please explain what LPCM is and does. I would appreciate it. dan

#2 of 2 OFFLINE   Jack Gilvey

Jack Gilvey


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  • Join Date: Mar 13 1999

Posted January 13 2007 - 12:09 AM

Linear Pulse Code Modulation. Basically, it's uncompressed digital data, not encoded in any way. CD's are LPCM at 16/44. HD DVD players decode the various formats into LPCM and send them as such over HDMI to receivers. A google search was fruitful, and these links have some good info:


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