Did some blind testing between two SBTs last weekend.
My forehead is still sore from hitting the brick wall in front of
me...
Was there a difference, yes I think so.
The factory SBT wirelessly connected was preferred in all rounds.
The competition? Hardware modded, TT3.0 implemented, wired
bluegaspode;692310 Wrote:
Triode, just to interpret the results, can we do it with the example of
JohnSwenson
So with the result from above:
John preferred A in all cases with some statistical significance even
though he never knew when A was played or not.
IME the headphone
bump
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
TheOctavist's Profile:
Thanks for the reveal, and that it still can be blind tested. :)
I now understand why you can run the test both with and without TT3.0.
I use TT3.0 normally, and have seen that it uses more CPU that factory
SBT, so the CPU load may not be audible?
To me the different settings seem a bit
bluegaspode;692310 Wrote:
John preferred A in all cases with some statistical significance even
though he never knew when A was played or not.
Yes this is how I interpret them, which leads me to what to review the
code as the difference between A and D is not expected. Also its not a
NoRoDa;692368 Wrote:
To me the different settings seem a bit mysterious, like you just made
something that is using CPU without doing anything?
yes
My head was focused on hearing improvements (or maybe changes), not
knowing that the best I could hope for is no improvement.
This is
Interesting results so far - in that there's no clear benefit/degrade of
specific changes. I though I'd share what the modification is in test
#2 to encourage more people to try if they are interested...
Test #2 contains 4 test case these are:
A: runs a process which does nothing (sleeps for a
Triode;692284 Wrote:
Interesting results so far - in that there's no clear benefit/degrade of
specific changes. I though I'd share what the modification is in test
#2 to encourage more people to try if they are interested...
Test #2 contains 4 test case these are:
A: runs a process which
garym;692286 Wrote:
To be clear will people now know when doing the tests which case they
are in (A,B,C,D)? Or is this part still blind to the tester? I hope
so.
No the individual test cases are still blind (randomly chosen). The
result should now make sense to people. I want to drum up
Triode, just to interpret the results, can we do it with the example of
JohnSwenson
JohnSwenson;691726 Wrote:
Here are my results, this is for headphones plugged into the headphone
jack on the Touch, I did a factory reset before starting the test so no
TT3.0 etc.
0 0 0 0
2 -2 1 -1
Triode;691887 Wrote:
I think it can re-enforce the expectation bias that the test cases show
no difference or do show differences. However the idea behind the test
is that you don't know which test case you are voting on, so it should
not influence the specific results within a test other
Triode;691887 Wrote:
I think it can re-enforce the expectation bias that the test cases show
no difference or do show differences. However the idea behind the test
is that you don't know which test case you are voting on, so it should
not influence the specific results within a test other
Triode;691887 Wrote:
I think it can re-enforce the expectation bias that the test cases show
no difference or do show differences. However the idea behind the test
is that you don't know which test case you are voting on, so it should
not influence the specific results within a test other
NoRoDa;691975 Wrote:
I tried this last night.
But, maybe I was tired, aren't there three tests?
There are two sets of tests:
Audio Tests #1
Audio Tests #2
Tests #1 has 3 cases in it and is to familarise you with the test
process - it is unlikely that you will detect any difference between
Triode;692062 Wrote:
There are two sets of tests:
Audio Tests #1
Audio Tests #2
Tests #1 has 3 cases in it and is to familarise you with the test
process - it is unlikely that you will detect any difference between
them.
Tests #2 has 4 cases and I was hoping that you may be able to
Test case 2 is the one you should be trying. When you select it you will
get a screen that says 1 of 6 and has a three line menu, A, B and report
results. At this point play some music (you probably will need to do a
swipe on the screen to get out of the app). Listen to whatever music
you want
0, -1 0 1
-1,1 0 0
0, -1, 0 1
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
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TheOctavist's Profile:
Thank you, JohnSwenson
This could very easily have been all A=B, but it's more fun to guess
:)
[image:
http://i13.photobucket.com/albums/a270/RODARID/HIFI%202012/blind.jpg]
I hear very small - if any - differences between different
prio-settings in TT3.0
I hear very small - if any -
Pardon my ignorance in ABX listening but isn't posting results going
to taint the overall test results? Example: If someone reads this
thread, sees that most hear no difference on tests 1 2, won't there
now be an expectant bias to also not hear a difference on those same
tests?
I'm no
toby10;691753 Wrote:
Pardon my ignorance in ABX listening but isn't posting results going
to taint the overall test results? Example: If someone reads this
thread, sees that most hear no difference on tests 1 2, won't there
now be an expectant bias to also not hear a difference on
I have TT3.0 installed on my SBT.
Will I need to restore the factory settings to do this test?
I hope the tt -r (restoring SBT to factory settings) is enough.
Regards
Rolf
--
NoRoDa
NoRoDa's Profile:
toby10;691753 Wrote:
Pardon my ignorance in ABX listening but isn't posting results going
to taint the overall test results? Example: If someone reads this
thread, sees that most hear no difference on tests 1 2, won't there
now be an expectant bias to also not hear a difference on
I have no Touch but find this idea funny! What i wonder is if here is a
chance to cheat when someone knows to debug the processes and its
changes in reasltime!?
--
Wombat
Transporter (modded) - RG142 - Avantgarde Acoustic based 500VA
monoblocks - Sommer SPK240 - self-made speakers
Here are my results, this is for headphones plugged into the headphone
jack on the Touch, I did a factory reset before starting the test so no
TT3.0 etc.
0 0 0 0
2 -2 1 -1
5 -2 -2 -1
7 -3 -1 -3
9 -1 -2 -6
That's as many tests as I had time for.
John S.
--
JohnSwenson
No differences noted on any of the test files (using digital out to rega
dac).
Perhaps I need to upgrade the sata cable in the server ;-)
--
john4456
john4456's Profile:
I've done several tests on different days with different tracks. A=B
for all tests.
Wireless SBT - Toslink - Dacmagic
--
chill
chill's Profile: http://forums.slimdevices.com/member.php?userid=10839
View this thread:
there will be a LOT more participants this weekend..
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
if I find the time I would unpack my spare Touch as test subject . no
promise .
I don't want to muck about with the ones I listen to daily .
Q.
I have a fully digital system ,except for the poweramps to the speaker
drivers, xover is digital to so in practice I have 11 mono dac's
distributed in
Mnyb;691025 Wrote:
Is the Touch still bitperfect in all the test modes ? no level
manipiulation as I have some DTS tracks in my playlist and anything but
100% volume would make a loud hissing noise ?
Yes and with the TT mods - all these mods do is change the other things
going on within
My SBT is connected to an external DAC. Would it make sense to run this
test?
--
Pascal Hibon
1 x SB3, 1 x SB Boom, 1 x SB Radio and 1 x SB Touch - all wireless
ReadyNAS NVX running LMS 7.7.1. w iTunes plugin
iPeng on iPod Touch.
SqueezePad iPeng on iPad.
I ran the tests several times but could not hear any difference at all.
--
Soundman
Soundman's Profile: http://forums.slimdevices.com/member.php?userid=3
View this thread:
Soundman;691066 Wrote:
I ran the tests several times but could not hear any difference at all.
This is totally expected for test #1 and an interesting result for #2.
(I will post what #2 does when we have a few more test results. However
I'm interested in results like this from people who
Triode;691077 Wrote:
This is totally expected for test #1 and an interesting result for #2.
(I will post what #2 does when we have a few more test results.
However I'm interested in results like this from people who can detect
the difference with buffer and priority tuning as its trying to
Did the Test again with #2 this time. Same result. All 0,0,0,0.
--
Soundman
Soundman's Profile: http://forums.slimdevices.com/member.php?userid=3
View this thread: http://forums.slimdevices.com/showthread.php?t=93583
been listening a LOT. gonna listen all day tomorrow and will post
results.
cmon people,. man up. participate.
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
cmon people,. man up. participate.
Many don't like to face the truth... ;-)
--
Michael
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Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch
0 0 0
0, -1, 1, 0
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
TheOctavist's Profile:
TheOctavist;690553 Wrote:
0 0 0
No supprise for that...
0, -1, 1, 0
Interesting - if you repeat the test do you reenforce the score? (i.e.
if you do it a second time or select the option to run more tests do the
same ones come out as preferred?)
--
Triode
Triode;690629 Wrote:
No supprise for that...
Interesting - if you repeat the test do you reenforce the score? (i.e.
if you do it a second time or select the option to run more tests do the
same ones come out as preferred?)
gonna do it 10 more times!
ill post the scores!
--
ah! gotya!
i thought it was some music files he put on there somehow!( see how
dumb i am with this stuff!)
well thats exciting then!
ill choose good tracks and spend a LOT of time listening!
thanks brother
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota
I'm going to give this a shot when I have the time for some ABX. This is
brilliant! (I suspect most of the results from me, with my non-golden
system and my non-golden ears, will be A=B, but we'll see.)
--
Soulkeeper
'Bug 17797: Updating wiki.slimdevices.com'
Mnyb;690419 Wrote:
Play music of you own choice, if I understand triode here he have
changed something in the sound system settings in the Touch what it is
you are not suposed to know just try with whatever music you please :)
Exactly - you should play whatever music you like and see if you
I'm interested in a few testers to see if they can tell any audible
difference between a few cases using a blind testing applet I've put
together for Touch called Audio Blind Tester. The idea is that it
allows multiple people to evaluate a set of configurations and rate
which sounds preferable
Triode;690369 Wrote:
I'm interested in a few testers to see if they can tell any audible
difference between a few cases using a blind testing applet I've put
together for Touch called Audio Blind Tester. The idea is that it
allows multiple people to evaluate a set of configurations and rate
Actually, I see them on the SBT screen.but nothing plays when I try
to click through it.
the A/B/record results is there, but nothing happens when I click
them..
--
TheOctavist
VortexboxSBT(stock)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono
TheOctavist;690406 Wrote:
Actually, I see them on the SBT screen.but nothing plays when I try
to click through it.
the A/B/record results is there, but nothing happens when I click
them..
is something supposed to play when i click them? it gets as far as the
point at which i can
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