I got hold of a second hand upsampler about a year ago, a dCS Purcell. I
was using that between my SB3 and my DAC (another dCS thing).
Initially, I had only the SB3 + the DAC and I did notice a large
improvement when adding the upsampler in between. Things I noticed in
particular was:
Well defin
Surely oversampling has to be at a whole multiple of the original
sampling frequency and synchronised to the original clock source, so
for 44.1kHz, 4x would be 176.4kHz or 8x would be 352.8kHz, hence
subject to jitter caused by clocking errors. Upsampling on the other
hand uses more advanced sign
Here's a practical difference between the two terms, at least in DAC
design:
"upsampling" occurs before the DAC chip, typically with an ASRC, while
"oversampling" occurs in the DAC chip, itself, right before the analog
output stage.
Of course, DAC's can have both upsampling and oversampling. I
Here is a spec on the Transporter's DAC:
http://www.asahi-kasei.co.jp/akm/en/product/ak4396/ak4396_f00e.pdf
On page 2 in the block diagram, the two blocks (one for each channel)
that says "8X interpolator" is the oversampling FIR filter that does
the brick wall filtering in the digital domain.
truckfighters;182195 Wrote:
> so can I use transporter for upsampling and "smoothing" my 44,1 kHz 16
> bit content?
>
> what settings would I have to make in slimserver?
The transporter is already oversampling and "smoothing" your 44,1 kHz
16 bit contents.
You don't have to do anything.
--
so can I use transporter for upsampling and "smoothing" my 44,1 kHz 16
bit content?
what settings would I have to make in slimserver?
--
truckfighters
Transporter -> REDGUM RGASIL -> REDGUM RGi120ENR AMP -> REDGUM LS Cable
-> Infinity Kappa 8.1i -> Live!
--
cliveb;182179 Wrote:
> I spent a while trying to discover the difference between "upsampling"
> and "oversampling" in some other thread (possibly here, or maybe on
> another forum). As far as I can make out, the two techniques achieve
> the same thing (allowing the post-DAC anti-imaging filtering
ezkcdude;182151 Wrote:
> It's not about "adding information". AFAIK, the single advantage
> (theoretically, at least) of upsampling is to lessen the harmful
> effects of digital "brickwall" filters of modern DAC chips. A lot has
> been written on this, and can be found on the web.
Sure, but upsa
ezkcdude;182151 Wrote:
> It's not about "adding information". AFAIK, the single advantage
> (theoretically, at least) of upsampling is to lessen the harmful
> effects of digital "brickwall" filters of modern DAC chips.
I spent a while trying to discover the difference between "upsampling"
and "ov
ezkcdude;182151 Wrote:
> AFAIK, the single advantage (theoretically, at least) of upsampling is
> to lessen the harmful effects of digital "brickwall" filters of modern
> DAC chips.
Ok, well let me go look into that.
But the fact remains that to upsample you have to interpolate, and if
there i
devin;182148 Wrote:
> I don't believe there is any reason to think this is true.
>
> Upsampling will not add information that was not there to begin with.
>
> Playing the samples back at the same sampling frequency they were
> recorded at will produced the cleanest and best signal as far as I c
Yes, you can upsample.
No it won't improve anything.
You cannot add information that was not orginally there.
You can guess at it, also called interpolation, but thats just a $20
word for guessing.
I wouldn't recommend upsampling to 96 KHz.
--
Eric Carroll
Transporter-Bryston 3B SST-Para
truckfighters;182052 Wrote:
> read this somewhere:
>
> "With a Transporter, you can also upsample your source files to 96khz,
> which is an improvement again."
>
> is this true and if yes - how do I setup slimserver to do that?
>
> thank up front!
I don't believe there is any reason to think
read this somewhere:
"With a Transporter, you can also upsample your source files to 96khz,
which is an improvement again."
is this true and if yes - how do I setup slimserver to do that?
thank up front!
--
truckfighters
Transporter -> REDGUM RGASIL -> REDGUM RGi120ENR AMP -> REDGUM LS Cabl
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