2X and 4X CD upsampling what does it do? [Archive] - Audio & Video Forums

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stj
05-07-2005, 03:33 PM
I got no response in the Digital forum so am posting here.

Yamaha ( I don't know about others) lists this as a feature that improves overall sound.

Does anyone know if DVD players with this feature produce better sound from a CD?

N. Abstentia
05-07-2005, 08:44 PM
I think you mean oversampling..and no, it makes no real difference.

Just for reference, my car CD player has 8x oversampling. I seriously doubt it's a better player than any of my home players :)

stj
05-09-2005, 03:23 PM
I think you mean oversampling..and no, it makes no real difference.

Just for reference, my car CD player has 8x oversampling. I seriously doubt it's a better player than any of my home players :)


Thanks for your reply. Yamaha refers to it as upsampling. I found a few articles on it, and upconversion and oversampling since posting. (simaudio.com/upsampling) was interesting.

StateDJ85
05-09-2005, 07:39 PM
Oversampling has to do with the digital conversion. I believe for example, an 8x oversampling CD player will multiply the sampling rate 8 times. The filter on the CD player, applied to the higher frequency of sampling will essentially make for better sound. Might be hard to hear a difference though.