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Pete B
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Joined: Jul 21 2007 - 11:49am
Re: DBT testing

Without DBT: adding distortion and power compression to a solid state amp matches it to a tube amp:
http://www.carveraudio.com/CarverChallenge.pdf

SAS Audio
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Re: DBT testing


Quote:
http://www.bostonaudiosociety.org/bas_speaker/abx_testing2.htm

Hi Pete,

Actually the test is quite flawed.


Quote:
A random series of 20 trials was conducted while Remington cued up the turntable (playing a female vocalist) on each occasion, as he did throughout the day. Tiefenbrun's result: 10 correct responses in 20 trials, an outcome which shows no ability to discriminate between the two situations.


Quote:
Ten trials were conducted during which Tiefenbrun achieved a score of 5 correct out of 10. Again, this demonstrates no discrimination ability beyond what one would expect purely on the basis of chance.

This is a poor example of a test since "Habituation to Stimuli" was not accounted for by the fact they did 20, then 10 ABs per session. After about 3-4 ABs, the test becomes a guess because of "habituation to stimuli", and therefore chance; so the results are skewed toward no sonic change. 10-20 ABs per session is also not real world.

Its too bad they did not break down the results per individual AB to see the results of each AB.

Cheers.

Jan Vigne
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Re: ncdrawl

ncdrawl, click on the Spica project for more on felt applied to baffles.

ncdrawl
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Re: ncdrawl


Quote:
ncdrawl, click on the Spica project for more on felt applied to baffles.

Will do, Jan. Thank you!

ncdrawl
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Re: ncdrawl

I wish that whoever edits my posts would at least tell me... consideration and all...

ive seen far worse with no moderation involved..

tomjtx
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Joined: Nov 12 2006 - 2:53pm
Re: ncdrawl


Quote:
I wish that whoever edits my posts would at least tell me... consideration and all...

ive seen far worse with no moderation involved..

Not to worry , nc. I think it's quite clear you were simply refuting unwarranted attacks and accusations.

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