[vorbis] as if you haven't seen this yet

[Beni Cherniavsky]

On Wed, 18 Jul 2001, Andreas Fuchs wrote:

> On 2001-07-17, The nameless One <oddsock at oddsock.org> wrote:
> > in case anyone is interested, I have built a win32 program which will
> > perform a double blind listening tests..It will allow you to play each
> > sample and allow you to rank them in order of quality.  The program
> > will then send the results to a centralized server which saves it off
> > to a DB and gives immediate feedback to the user the outcome of the
> > test.
>
> Hm, is it really a double-blind test? I.e. does the program itself know
> which format it's playing? This could be a problem if somebody wants to
> abuse this system by writing a client which rates, say, wma best 20
> million times in a row.
>
> Unluckily, I can't think of a solution which does not involve security
> by obscurity right now. Maybe you can. Or you already have (-:
>
Havong some knowledge of the fomrats, one can tell apart which is what
by capturing the played sound and examining with a sound editor.  Then he
can send the 20 million rates anyway.

> regards,
>


-- 
Beni Cherniavsky <cben at crosswinds.net>
                 (also scben at t2,cben at tx in Technion)

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