Here's a practical difference between the two terms, at least in DAC design:
"upsampling" occurs before the DAC chip, typically with an ASRC, while "oversampling" occurs in the DAC chip, itself, right before the analog output stage. Of course, DAC's can have both upsampling and oversampling. I believe the Transporter does not upsample, meaning only that the frequency of the signal sent to the DAC is 44.1. OTOH, an upsampling DAC, such as my own DIY design, upsamples to 96 kHz (i.e. the input to the DAC chip is 96 kHz). The DAC then also has oversampling (which is essentially non-defeatable in PCM1794), and a "soft" rolloff filter. -- ezkcdude DIY projects page: http://www.ezdiyaudio.com System: SB3->EZDAC->MIT Terminator 2 interconnects->Endler Audio 24-step Attenuators (RCA-direct)->Parasound Halo A23 125W/ch amplifier->Speltz anti-cables->DIY 2-ways + Dayton Titanic 10" subwoofer He's not hi-fi, he's my stereo. ------------------------------------------------------------------------ ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=32940 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
