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Is it really useless Upscaling 16/44.1 music to 24

Is it really useless Upscaling 16/44.1 music to 24/176.4 or 24/192
In the past I asked this question and from the answers I learned that converting any music from 16/44.1 to higher resolution is just adding bunch of zeros in front. But now I started seeing so many DAC’s up-sampling the music to 24/192 or 24/384, which bring up the question again “Is it really add zero in front of 16/44 or did they figure out how to create a broader spectrum in frequency from 44 khz to 384 khz and how many listeners heard the difference in quality of sound by up converting it? “We are not discussing the HD-Track’s music.”
I read the reviews and saw the picture open DACs. I don’t see much in them other than a high rez sound card. Please correct me if I am wrong.
And finally, In JRiver/Foobar we have an option to up sample the music. Questions are
1) Does up converting makes a difference?
2) What is the difference between $500 or $5000 DAC re-sampling the music verses Foobar or JRiver re-sampling?
3) Can JRiver/Foobar do the same job in re-sampling the music as a DAC does?
trcns
cerrot's avatar
cerrot
1,700 posts
 
I am running a 10 meter spdif cable from my PC (separate room) into my sound room so the G25U is kind of like a signal amp for me. I guess today, its an upsampler/reclocker in the digital world. Its worked splendidly. I think if I had the puter in the same room (i would blow my brains out) I may feed the hi res signals natively and bypass the g25u but it does a good job with intrnal bypass circuit, stepping put of the way when anything higher than 44.1 comes through it. 44.1 sounds absolutely amazing. Of course there is a variance in quality amongst 44.1 recordings but for the most part 44.1 is imensely enjoyable.
lewinskih01
909 posts
 
I think if I had the puter in the same room (i would blow my brains out)

I assume you mean because of the noise the computer makes? Fair point, with standard computers. My computer is designed to be in the listening room, only playing music. It uses very little power, so generates very little heat, so passive cooling is good enough (with a purpose-designed case, of course). The PC has no motors, fans or HDD. Makes absolutely no noise.

And a linear power supply helps in not injecting electrical noise, despite being plugged into a different AC circuit just in case.
hoopinla
1 posts
 
I am streaming TIDAL with the Beta APP from my Oppo, bistream via HDMI into an ESSENSE DAC ($499) which converts to 24/192. What is really happening? Can anyone, with a real expertise, describe the process including whether or not re-clocking is involved. I have a truly high end system and this sound is truly glorious. The "air" and the soundstage fill the entire room. I have never heard anything like it before at THE Show or CES. BillinOC
cerrot's avatar
cerrot
1,700 posts
 
Lewinskih01 - I do mean noise and my puter is very quiet as well. Its also plugged into a power conditioner and APS and sits on a 4 inch maple shade base with the brass points and an isolation brick on top - and I would never let the nasty bugger in my sound room necause of all the emf and other nasties is gives off (not just noise you can hear but noise you cant as well). I have a bathroom right behind my sound room on the other side of a wall - I may drill throyg and put the server in that bathroom (I guess like Hillary) to get it closer and get away from the 10 meter cable but it does suound awesome.
kijanki's avatar
kijanki
4,428 posts
 
Lewinskih01, There is no such thing as "Linear Power Supply". All power supplies are switchers and so called linear one is pretty bad one switching at 120Hz - frequency very difficult to filter out. Switching happens at the peak of the voltage while current is taken from the mains in short spikes of very high amplitude (polluting). For these reasons Rowland amplifiers use high frequency (1MHz) SMPS switching at zero voltage/ zero current even in his class AB amps. SMPS get their bad name from crude computers applications.
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