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Multiformat Listening Test @ 48 kbps - OPEN
beto
post Nov 27 2006, 00:02
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I have to say that even using headphones (Senn HD555) for some samples I couldn't tell the difference from the original. For others the differences were very subtle.
Either codecs improved a lot or I am losing my hearing (or both!!) laugh.gif


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IgorC
post Nov 27 2006, 17:22
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High anchor for some samples is indistinguishable for me. As it's 48 kbit/s test I expect that the result is still valid if only high anchor isn't spotted.
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rjamorim
post Nov 27 2006, 18:05
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QUOTE (IgorC @ Nov 27 2006, 13:22) *
As it's 48 kbit/s test I expect that the result is still valid if only high anchor isn't spotted.


The result is valid if you don't spot anything :B

Why should only people that can hear artifacts be allowed to participate?


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IgorC
post Nov 27 2006, 18:45
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QUOTE (rjamorim @ Nov 27 2006, 09:05) *
The result is valid if you don't spot anything :B

Why should only people that can hear artifacts be allowed to participate?


Yep. It's real life test.
In extremal case listener can be totally deaf or has serious problem with hearing. But it's not common in this forum.
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benski
post Nov 27 2006, 19:15
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I'm getting a weird hang when adjusting the playback range in the ABX section (only happens occassionally, but it's catastrophic when it does happen)
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Sebastian Mares
post Nov 27 2006, 19:55
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Bummer, maybe schnofler can help.


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Firon
post Nov 28 2006, 22:03
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I had it hang once or twice as well. Also, it seemed that whenever I saved my session, I was unable to change the rating sliders without first reloading the session, but everything else still works.
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vulc44n
post Nov 29 2006, 20:39
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This is soo cool. If I have time I'm going to complete all of the samples.
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grav
post Nov 29 2006, 23:53
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I managed to decompress files on Linux using

CODE
wine cmd /c Sample05.bat
(instead of wine wcmd as it states in the docs)

Using Wine 0.9.22 on Ubuntu

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sizetwo
post Nov 30 2006, 04:04
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I sent you my 20 test results also now, just wanted to make sure you got them. Fun test!
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Sebastian Mares
post Nov 30 2006, 07:12
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I received them, thank you!


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vinnie97
post Nov 30 2006, 08:02
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Thanks to all involved! I'm not going to go into any extensive ABX testing...if it's imperceptible, then I'm voting 5. wink.gif This is mainly due to my left ear hyperacusis, which tends to interfere with involved listening tests such as these. I hope these will be acceptable results!

I hope this doesn't skew the results too much but many times I think I have a good idea which sample is AAC+ based on that SBR graininess. :X

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Firon
post Nov 30 2006, 15:17
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The samples are often pretty easy to pick out (though there's one or two contenders that do a good job!), so don't worry too much.
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Sebastian Mares
post Nov 30 2006, 15:46
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To be honest, I tested some samples myself just for fun (did not save the results of course) and for the majority of the samples, I was only able to pick out 3 codecs. ermm.gif


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pepoluan
post Nov 30 2006, 21:26
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Drrrats! I totally completely utterly forgot about this page:

http://wiki.hydrogenaudio.org/index.php?title=Current_events


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Sebastian Mares
post Nov 30 2006, 21:33
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Oh, didn't know about that one. I only edited the listening tests wiki page myself.


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vinnie97
post Dec 1 2006, 02:52
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Sebastian, did u get results from trans at mchsi.com? ;) Just want to be sure they made it past any spam filters.
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Sebastian Mares
post Dec 1 2006, 07:17
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Yep, thanks!


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emtee
post Dec 2 2006, 02:14
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Just out of curiosity, how many samples so far? Is the participation on this test being significant?
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Sebastian Mares
post Dec 2 2006, 07:21
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I have something around 10 results per sample making a total of 200 results so far. Keep 'em coming! biggrin.gif


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Firon
post Dec 2 2006, 16:47
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Good to hear that you're getting plenty of testers.
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Sebastian Mares
post Dec 3 2006, 08:53
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OK, I decrypted all result files, sorted them automatically using ABC/HR and the wonderful ReNamer with its regexp replacing method, eliminated all invalid results (ranked reference without ABX test) and then counted:

Sample01: 13
Sample02: 15
Sample03: 13
Sample04: 13
Sample05: 13
Sample06: 10
Sample07: 16
Sample08: 12
Sample09: 16
Sample10: 12
Sample11: 13
Sample12: 12
Sample13: 13
Sample14: 14
Sample15: 14
Sample16: 14
Sample17: 12
Sample18: 15
Sample19: 15
Sample20: 15


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Sebastian Mares
post Dec 5 2006, 09:31
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Three days left for testing and it looks like I don't have to extend the test. I would like to ask people to start sending results soon if they haven't already.


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stigc
post Dec 5 2006, 22:56
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QUOTE (Sebastian Mares @ Dec 3 2006, 08:53) *
OK, I decrypted all result files, sorted them automatically using ABC/HR and the wonderful ReNamer with its regexp replacing method, eliminated all invalid results (ranked reference without ABX test) and then counted:


".. without ABX test".

Isn't enough just to move the sliders up and down and then save via "Save Test Results.." ?

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Sebastian Mares
post Dec 5 2006, 23:44
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It is as long as there are no ranked references.


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