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What is audio upsampling? (1 Viewer)

GregBe

Second Unit
Joined
Jul 9, 2003
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277
I just bought a HK DPR 2005 and it has this feature that I am unfamiliar with. Here is how the owners manual describes it. "When this feature is turned off, digital sources are processed at their native sampling rate. For example, a 48kHz digital source will be processed at 48kHz. However, the DPR 2005 allows you to upsample the incoming 48kHz signals to 96kHz for added resolution...Note that this feature is only available for the Dolby Pro Logic II Movie and Music modes"

Greg
 

John S

Senior HTF Member
Joined
Nov 4, 2003
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5,460
Interesting.. I'm not a big fan of dithering audio. But intersting. I would be curious as to the results if tried?
 

GregBe

Second Unit
Joined
Jul 9, 2003
Messages
277
I just set it up late last night, and have not had time to play with it yet, but I will let you know what differences in sound that I hear.
In the meantime, if anyone can tell me what I should be listening for, I would appreciate it.

Greg
 

amatala

Stunt Coordinator
Joined
Mar 19, 2004
Messages
68
I have the same option on my H/K AVR430. It only works when DPLII or DPLIIx processing is used.
I have tested this option on PCM 48K signals and the sound seems to be richer (wider soundstage) when upsampling is on. It is true that the improvement is quite subtile, but I always keep the upsampling feature turned on.
 

Lewis Besze

Senior HTF Member
Joined
Jul 28, 1999
Messages
3,134
It certainly won't add more resolution,it is more of a "upconversion" to the DSP chip's native processing rate which is probably 24/96,so it can work easier,so no other conversion is required.
 

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