So did I accidently get it right when I said (with regard to a 16 bit
sample bumped up to 24)
Remove all the [extra] 0s and the level will now be 1/256 with no loss
in resolution. You're just back where you started. Since whole number
multiplication does not have any effect on resolution then
In the attached thread, P Dixon explains that 1/256 or multiples are
used down to -30db. In the old 40 step volume days (2005) he had to
argue with Sean Dean to get it corrected to be this way). Further
volume reduction after that bit resolution accuracy is compromised.
seanadams;164681 Wrote:
...
This has been discussed many times here, but I won't refer you to our
archives as there have been far too many people still getting it wrong.
Instead, here's a detailed and correct explanation from Lavry (login
needed):
Seems like maybe the gist of Sean's response should go into the wiki?
--
bobkoure
bobkoure's Profile: http://forums.slimdevices.com/member.php?userid=14646
View this thread:
Phil Leigh;514804 Wrote:
The SB3 uses a 24-bit internal implementation for it's level control.
Provided you keep the volume fairly high you shoudn't notice too much
loss of resolution.
I can't find the post where Sean addressed this but I just want to be
sure I understood...
Since for each
gdg;515891 Wrote:
I can't find the post where Sean addressed this but I just want to be
sure I understood...
Since for each 6db of attenuation one loses 1 bit does that mean that I
can afford 48 db of digital attenuation (in the SB3) on a 16 bit source
before I lose resolution?
It's got
gdg;515891 Wrote:
I can't find the post where Sean addressed this but I just want to be
sure I understood...
Since for each 6db of attenuation one loses 1 bit does that mean that I
can afford 48 db of digital attenuation (in the SB3) on a 16 bit source
before I lose resolution?
I hope
Phil Leigh;515894 Wrote:
It's got nothing to do with losing resolution in an absolute sense -
you still have 16/20+ bits. It's the value in them that is changing and
thus the max SNR and dynamic range.
You really need to read this thread fully - especially Sean's
comments.
So in other words, you control the volume by choking the DAC, and you
need to keep the SB volume on 100% in order to get full resolution?
There is no volume controlling amp/circuit after the DAC?
Is this the case for all SB models?
--
Soulkeeper
Having nothing better to do I've been pondering this.
If a 16bit source is made up to 24bit by adding eight 0s on the end,
then isn't it fair to say that there will be no loss of resolution if
all you do is remove a few of them? Of course the signal will be closer
to the noise floor, but what
You have already been through this debate before
Just search for Sean Adams + Volume Control you will find the answers
to you questions - as you previously posed them.
For further complex data Patrick Dixon + Volume Control will explain
all the issues about the arithmetic calculations an
Soulkeeper;515106 Wrote:
So in other words, you control the volume by choking the DAC, and you
need to keep the SB volume on 100% in order to get full resolution?
There is no volume controlling amp/circuit after the DAC?
Is this the case for all SB models?
The use of the SB volume
DaveWr;515115 Wrote:
For further complex data Patrick Dixon + Volume Control will explain all
the issues about the arithmetic calculations an effects on resolution.
Thanks
K
--
KMorgan
-
Sorry, can't spare enough
Phil Leigh;514804 Wrote:
The SB3 uses a 24-bit internal implementation for it's level control.
Provided you keep the volume fairly high you shoudn't notice too much
loss of resolution.
Since for each 6db of attenuation one loses 1 bit does that mean that I
can afford 48 db of digital
I just noticed, after reading some of the responses that my question has
been answered in another thread by Sean Adams. Thanx for indulging me.
--
gdg
gdg's Profile: http://forums.slimdevices.com/member.php?userid=1122
The SB3 uses a 24-bit internal implementation for it's level control.
Provided you keep the volume fairly high you shoudn't notice too much
loss of resolution.
--
Phil Leigh
You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
SB Touch Beta
Phil Leigh;514804 Wrote:
The SB3 uses a 24-bit internal implementation for it's level control.
Provided you keep the volume fairly high you shoudn't notice too much
loss of resolution.
If you notice a loss in resolution with such a low level then maybe you
should not use so much gain ;)
--
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