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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
dtc's avatar
dtc
1,047 posts
 
Cerrot - I believe you are reclocking as well as upsampling. Have you been able to determne which makes the most difference?
cerrot's avatar
cerrot
1,700 posts
 
Hi Dtc. I believe there is a reclocking oscillator on the ports. I dont use the clock function of the G25U any longer as the clock in my dac is more accurate. I would love to be able to tap a clock output into my squeezebox (nice project to figure out). I cant separate the two functions but the unit itself makes a world of difference.
dtc's avatar
dtc
1,047 posts
 
Thanks Cerrot. I am always trying to find new information on this complicated topic. The G25U is an interesting option, especially for older DACs with less good jitter protection.
cerrot's avatar
cerrot
1,700 posts
 
I think outboard upsmpling/reclocking is key to PC audio. It needs all the help it can get. The G25U brght my PC to levels of my K03.
dtc's avatar
dtc
1,047 posts
 
Thanks Cerrot. I am always trying to find new information on this complicated topic. The G25U is an interesting option, especially for older DACs with less good jitter protection.
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