The Dave with M Scaler also made absolute polarity (absolute phase) changes the most obvious I've heard with headphones. The imaging and layering and separation were the best I've heard from headphones. Could listen to an orchestra recording and believe you could count the number of violins playing and which one was tapping their feet during the recording. The imaging and sense of 3D was fascinating to hear on headphones. I did get to hear Dave with an M Scaler in a headphone system using Stax SR009S headphones. And for that we all benefit when that tech can trickle-down. It's something that someone has to do to demonstrate it's possible. I just find their technology interesting and I appreciate the direction they're going. But yes, computers can do this upsampling using sinc or a million tap sinc. Would need to get that running on GPUs to have any chance of doing it at reasonable speed. So it would take 6oo hours to process an hour of stereo music. On his computer it ran at 300x real-time to upsample 44.1 mono by 4x.
#Hqplayer vs burr brown full#
Not just a million taps, but the full sinc interpolation.
#Hqplayer vs burr brown code#
The The-theory-behind-M-Scaler-technology document I mentioned has a section where the author wrote code (probably in matlab) to do the full sinc interpolation on an audio file. Well, actually I keep on listing all these specs so that someone else can educate me on it!How much of a computer and how many Nvidia cards do you need to have HQPlayer upsample in real time to 16x using the sinc-M filter? But I suppose it gives us something to talk about. just "Good" as if we can tell the difference?
#Hqplayer vs burr brown professional#
We can't hear a difference between THD of 0.0004% vs 0.04%, or SNR 129dB vs SNR 90dB, or Crosstalk of -100dB vs -129dB, right?īut professional reviewers keep on labeling them as "Outstanding" or "Reference Quality" vs.
I mean the differences are so insignificant. If we cannot hear any differences beyond that -30dB threshold, why would a crosstalk of -90dB be "Outstanding" and -50dB be only "Okay"?Īnd on these DACs, practically all the crosstalks are < -100dB! Yet at the same time, The Audio Critic keeps on mentioning crosstalks of various preamps/amps and saying how one has "great" crosstalk, while another is only "good" or "okay" crosstalk. I mean I read The Audio Critic saying that you should not hear any differences if the crosstalk is < -30dB (20Hz-20kHz). Harman Kardon uses the Cirrus Logic DACs.Ĭlick to expand.Well, actually I keep on listing all these specs so that someone else can educate me on it!
Mark Levinson and Lexicon use the Analog Devices DACs. The Denon AVR-5805CI, 4308CI, & 3808CI feature the Burr-Brown PCM1791 DACs. The $7,000 Pioneer Elite SC-09TX features the Wolfson WM8741 DACs. Okay, not that we can actually hear the difference, but JUST in case anyone wants to compare the DACs for themselves, here is the low-down on the high-end DACs:įlagship Burr-Brown DACs: PCM1792 (THD 0.0004%, SNR 129dB, Crosstalk -124dB).