cliveb Wrote: > > But all the published material I've seen (which admittedly is on the > marketing side of things) from the likes of dCS seems to imply that the > purpose of upsampling is to "fill in the gaps" and allow a higher > sampling rate DAC to be used, with the clear implication that this > produces extra high frequencies and gives the eventual signal more > "resolution".
You're right. Don't take their word for it. Read the data sheets for the chips that actually do the math. Here is a link to the data sheet for AD1896 which is the ASRC (asynchronous sample rate converter) made by ADI. You'll notice it is used in many high-end DACs. http://www.analog.com/UploadedFiles/Data_Sheets/71654447AD1896_a.pdf Start reading on p.19 for theory and implementation. -- ezkcdude SB3->Derek Shek TDA1543/CS8412 NOS DAC->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=26685 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
