More > JRiver Media Center 22 for Windows
Upsample in a DAC or in MC?
pschelbert:
--- Quote from: BillT on August 13, 2016, 03:02:28 am ---Of course, there's another view on this. The ear has very limited abilities, the brain has an amazing susceptibility to suggestion.
It is very difficult to run valid comparison test, it's very easy to run invalid ones.
Occam's razor would suggest that electronics have developed well past the ability of the human ear to detect differences but suggestibility is still alive and well.
--- End quote ---
Hi
yes the point is, and up to now nobody could show otherwise: what you can hear, you can easily measure.
Double blind tests are very seldom done. Mostly professionals do that, like Harman Kardon and others. See publications for example in the AES-journals.
Bias is so strong if you do not double-blind tests that the result is completely useless.
Peter
blgentry:
--- Quote from: pschelbert on August 13, 2016, 05:41:03 am ---Schiit specifies in which product they use what chip.
Each type of DAC uses a different chip, some modern, some older designs.
The akm-chip they use is most probably a Sigma-Delta (32Bit). The others are Ladder (14, 16, 20Bit), some EOL (not for new designs according to chip manufacturer).
See on their website for details.
--- End quote ---
I'm quite familiar with Schiit's DAC lineup. All of their multi-bit DACs use chips that have never been used for audio before. These Analog Devices chips are intended for medical imaging and military targeting applications. But Schiit has adapted them for audio use, since they are the only modern multi-bit chips that Schiit could find that are being manufactured currently. You're claiming that some of these are End Of Life by the DAC chip manufacturer? Which ones?
Brian.
pschelbert:
--- Quote from: blgentry on August 13, 2016, 08:22:50 am ---I'm quite familiar with Schiit's DAC lineup. All of their multi-bit DACs use chips that have never been used for audio before. These Analog Devices chips are intended for medical imaging and military targeting applications. But Schiit has adapted them for audio use, since they are the only modern multi-bit chips that Schiit could find that are being manufactured currently. You're claiming that some of these are End Of Life by the DAC chip manufacturer? Which ones?
Brian.
--- End quote ---
I read the 14 and 16 bit ones, but I am not sure.
Nothing against using DACS from medical, machinery for audio. However they are lower quality in terms of audioperformance (precision 20Hz-20kHz).
These Ladder DAC shine if it goes to DC-performance (which Sigma-Delta cannot do).
Overal I see no benefit, not pricewise nor technical.
Modern sigma-Delta have oversampling and filtering very much optimized, even selectable filters. I doubt a separate solution could do better.
To test, you can DA and then AD-record and put in on a drive for others to hear.
There are others which use such Ladder DACS like Audionote and Lampizator (some say NOS, non oversampling).
Peter
kstuart:
--- Quote from: BillT on August 13, 2016, 03:02:28 am ---Of course, there's another view on this. The ear has very limited abilities, the brain has an amazing susceptibility to suggestion.
It is very difficult to run valid comparison test, it's very easy to run invalid ones.
Occam's razor would suggest that electronics have developed well past the ability of the human ear to detect differences but suggestibility is still alive and well.
--- End quote ---
The phrases "very limited", "amazing", "very difficult", and "very easy" have zero scientific content.
You are convincing yourself that your opinion is "scientific" when it is just what you want to believe.
The quality of consumer audio electronics is circular. Certain things are measured, and then devices are designed to perform well in those same measurements. The other aspects of sound quality that are not covered by the measurements are ignored - because most people cannot tell the difference simply because they are not interested.
kstuart:
--- Quote ---To test, you can DA and then AD-record and put in on a drive for others to hear.
--- End quote ---
What? How is adding a sound-deteriorating AD step make something a test??
Navigation
[0] Message Index
[*] Previous page
Go to full version