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In Reply to: Re: Upsampling shifts energy to higher frequency ? posted by Busybusy on February 22, 2001 at 15:37:32:
Dear Busybusy,
This is what you wrote:
>>Anyway, my feeling was that the upsampling shifts the energy around, so there were more apparent high-frequency content, lot's of air, and the 'chin, chin-ness' was very cool. But underlying it, I felt that the guts and the vocal are less powerful. My over all feeling is that the upsampling seemed to be moving some 'energy' from midrange to the high-range. Then trading off some midrange robustness and power.<<>>Full dCS, so I guess Purcell is in, but not sure the DAC is Elgar, or Delius.<<
Now I can tell you that your discovery is inaccurate. You are correct! Since DCS is having coloration, their Upsampler and DAC is shifting the bottom energy upward to higher frequency range. However, if you get a chance, please compare DCS Purcell to Assemblage D2D-1 upsampler, you are not hard to find the difference. Do not judge by the price between 2 units. Upsampler not necessary sound like what you heard, you have to listen to a good one, not the one with problem or outdated; just as everything else out there!!
Good Luck!
Yours,
PPtriode
Follow Ups:
Posted by pushpulltriode (i) on February 22, 2001 at 21:57:58Now I can tell you that your discovery is inaccurate. You are correct! Since DCS is having coloration, their Upsampler and DAC is shifting the bottom energy upward to higher frequency range. However, if you get a chance, please compare DCS Purcell to Assemblage D2D-1 upsampler, you are not hard to find the difference. Do not judge by the price between 2 units. Upsampler not necessary sound like what you heard, you have to listen to a good one, not the one with problem or outdated; just as everything else out there!!
Exactly what is this "energy" you are referring to? The upsampling does nothing more than allow the use of different filters than the usual 16/44.1 brickwall filter. There is no new data created.
Dear garth,
My actual point is: Even a Upsampler from different brand, the sonic signature also different. Yes, The upsampling does nothing more than allow the use of different filters than the usual 16/44.1 brickwall filter. There is no new data created. However, different gear have different "sound"!!Burr-Brown PCM 1702 and Ultra Analogue 20400A also are 20 bits D to A. How come they sound so different? One must be treat/convert the digital signal quite different than the other! So, this is the issue between sound and theory. The way what DCS doing is quite different than what Assemblage does.
> > Exactly what is this "energy" you are referring to? < <
I think the best person to answer this question is the engineering from DCS, not me. How come they can make an upsampler shift the energy upward? For conventional term, Bottom end energy is part of music. It support the music foundation, some called authority!! Anything more than that, I guess you have to ask DCS engineering. Sorry, I cannot explain any further.Take Care!
Yours Sincerely,
PPtriode
Posted by pushpulltriode (i) on February 25, 2001 at 07:47:39:> > Exactly what is this "energy" you are referring to? < <
I think the best person to answer this question is the engineering from DCS, not me. How come they can make an upsampler shift the energy upward? For conventional term, Bottom end energy is part of music. It support the music foundation, some called authority!! Anything more than that, I guess you have to ask DCS engineering.Posted by pushpulltriode (i) on February 25, 2001 at 07:47:39:
"Sorry, I cannot explain any further."You can say that again!!!!
dCS would have no idea what you are taking about as seems to be the case.
Again what do you mean energy? There is no spectral difference with and without data rate conversion. I have the dCS gear and I know what it sounds like and I really wonder what this energy is you like to talk about.
Dear Garth,
If you want to know what I meant for energy. Please read my last posting again. Also, different system might have different effect. Maybe the DCS can "match" your system well! Who knows!!Finally, I'm going to call it quits to avoid further troubles.
Take care!
Yours Sincerely,
PPtriodePS. I also use DCS Purcell in my system.
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