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In Reply to: RE: it makes perfect sense? posted by Bob_C on February 20, 2015 at 12:45:45
The issue isn't the waste of power. One way or other the power ends up as heat. Where I live at this time of your the extra heat can be quite pleasant. The issue is the power that creates unwanted electrical noise on its way to becoming heat. Almost all the steps that reduce power consumption also reduce the creation of unwanted electrical noise.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
Edits: 02/20/15Follow Ups:
''Almost all the steps that reduce power consumption also reduce the creation of unwanted electrical noise.''and many of the steps increase latency, some by a very large margin. And 16G Ram increases power consumption and noise in critical areas of a computer where it is not needed for audio reproduction.
You have no idea and only speculate on noise and its effects erroneously.
How does placing a dac and a computer on top of each other, alongside a large EM generator of a big power supply reduce 'unwanted' noise thru enabling power saving firmware and software?
Edits: 02/20/15
Reducing computer power consumption by underclocking and undervolting is a known technique for measuring processor consumption and has been used successfully for many people to improve playback quality.
Power consumption and latency are both proxy metrics for sound quality, not necessarily causative factors (depending on the playbackchain). There is a big difference between power consumption and latency, however. Power consumption is very easily measured by readily available equipment that can be used without specialized tools or knowledge. Latency is intrinsically difficult to measure, being a difference in time. In addition there are a huge number of events (specific occurrences in terms of specific places and times) that can be differenced when measuring latency. Some of these may be inaccessible, while others need some specialized tools. Thus it makes no sense to even talk about latency in the context of computer audio without being specific as to what is being measured, where and how. (And probably why as well.)
When I listen to my record library the latency that I experience is measured in multiple trillions of microseconds.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
And 16G Ram increases power consumption and noise in critical areas of a computer where it is not needed for audio reproduction.And when I showed you that my Mini draws a mere 11-watts with 16GB of memory while playing music, you went off on personal attacks instead of replying to my question asking you how much power your music PC draws and why you spec'd a 210-watt linear power supply for it. Must be a power hungry & noisy PC!
How does placing a dac and a computer on top of each other, alongside a large EM generator of a big power supply reduce 'unwanted' noise thru enabling power saving firmware and software?
That setup was not about noise or sound quality. As I explained to you several times, it was a 'functional test' after installing a filter and linear power supply. A preliminary test if you will to determine that the installation was successful. It was not a 'listening test'. Do you have a comprehension problem?
Edits: 02/20/15 02/20/15 02/21/15
Why post something that does not pertain to audio?.
We all know that the MAC functions.
I regard your post with pictures as being deliberately designed for a purpose best known to yourself and perhaps aimed at discrediting inmates not holding your views.
Unlike yourself, in the interest of complete transparency I show details of my equipment setup, test setup, and measurement methods so people know and can see firsthand what is being done.My photos have nothing to do with "discrediting inmates not holding my views" but they often reinforce the discrediting of those who are flat out wrong.
Do you still not get it?
Edits: 02/21/15
of my ignorance of setting up audio equipment.'' period
If you want to be transparent about a 'function' test, then you would have run the MAC with Orthos (or is equivalent) for one hour, having disabled speed stepping, and tell us what the power consumption is during the test, what the cpu temperatures are, and what the fan speeds are.
How much power does your music PC draw while playing music? I've already been completely transparent about mine. Again, it draws 11-watts while playing music , which is what counts.And your PC?
Edits: 02/21/15 02/21/15
Change the subject whenever it gets awkward and indefensible!!!
The topic has not been changed. You questioned the Mac Mini's power consumption several posts ago. I replied. I asked you several times how much your music PC draws yet you avoid the question. Why?
Guess, since you are so good at making things up.
Oh no! Did you break your DMM too? I'm sorry, I thought it was just your oscilloscope that was in for repairs.
Well lets see, since you spec'd a 210-watt ATX linear power supply for your music PC I know that it draws a huge amount more than the 11-watts that my Mac Mini draws while playing music.
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