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R: Is the word Short measurable

From: Roberto Castaldo <r.castaldo@iol.it>
Date: Mon, 14 Jun 2004 17:02:05 +0200
Message-ID: <40BF3483003EFDE2@ms003msg.mail.fw> (added by postmaster@fastwebnet.it)
To: "'David MacDonald'" <befree@magma.ca>, <w3c-wai-gl@w3.org>

The problem is that we should be able to creare a SC so that no particular
kind of media is left out.

I think we should find the way not to specify fixed numbers, but I realize
it's almost impossible if we want to keep the SC testable; also the 20 db
threshold is a fixed number, but in that particular case, I feel that it's a
reasonable compromise.

Best regards,

Roberto Castaldo
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rcastaldo@webaccessibile.org
r.castaldo@iol.it
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________________________________

Da: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] Per conto
di Gregg Vanderheiden
Inviato: venerd́ 11 giugno 2004 22.22
A: 'David MacDonald'; w3c-wai-gl@w3.org
Oggetto: RE: Is the word Short measurable



Better

But I think this would still eliminate all war films. 

It is level 3 but… 

 

I wonder if we can figure a way to get what we want without catching so much
else that it would be ok to leave out. 

 


Gregg

 -- ------------------------------ 
Gregg C Vanderheiden Ph.D. 
Professor - Ind. Engr. & BioMed Engr.
Director - Trace R & D Center 
University of Wisconsin-Madison 

________________________________

From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On Behalf
Of David MacDonald
Sent: Friday, June 11, 2004 12:10 PM
To: w3c-wai-gl@w3.org
Subject: RE: Is the word Short measurable

 

I propose we rewrite:

 

Level 3 Success Criteria for Guideline 1.5 
 
<current>
1.      Audio content does not contain background sounds OR the background
sounds are at least 20 decibels lower than the foreground audio content with
the exception of occasional short sounds. [V] </current>
 
<proposed>
1.      Audio content does not contain background sounds OR the background
sounds are at least 20 decibels lower than the foreground audio content with
the exception of occasional short sounds. (where “short” may be defined as
less that 10 seconds and “occasional” may be defined as occurring more
frequently than once every 10 minutes.) [V] </proposed>
 
 
 
In an attempt to make our guidelines testable, I chose 10 seconds as the as
the threshold for the word “short” to allow for what the movie industry
would describe as an airplane passing overhead or a bomb exploding. I chose
10 minutes as the threshold for “occasional” because I think any more
frequency than that would be quite distracting and difficult to follow for a
person who is hard of hearing. 

 

David MacDonald

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Received on Monday, 14 June 2004 11:03:09 GMT

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