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Re: [css3-speech] pitch alteration expressed in semitones and Hertz

From: Daniel Weck <daniel.weck@gmail.com>
Date: Sat, 22 Jan 2011 12:07:49 +0000
Message-Id: <3F03BDE1-1755-496F-8D27-BF779F0EE555@gmail.com>
To: www-style@w3.org, fantasai <fantasai.lists@inkedblade.net>

On 20 Jan 2011, at 00:09, Daniel Weck wrote:
> On 19 Jan 2011, at 23:34, fantasai wrote:
>> In CSS you can't use the +/- operators as a disambiguation. Our  
>> number
>> type is defined to include the optional use of such operators: you
>> cannot distinguish between +1 and 1 in CSS. You must disambiguate  
>> some
>> other way.
>
> I was aware of that [1], but I misread the part about restricting  
> numerical values [2], my bad.
> I will explore the alternative syntax you suggested.
> Thanks, Daniel
>
> [1]
> http://dev.w3.org/csswg/css3-values/#syntax-and-terminology
>
> [2]
> http://dev.w3.org/csswg/css3-values/#generic-data-types


I have updated the specification of pitch values [3]. Absolute  
frequencies must now be expressed using the "Hz" unit explicitly, and  
the value syntax for relative changes in semitones or Hertz includes  
the mandatory "relative" keyword for disambiguation purposes. I  added  
a few examples to illustrate the new syntax.

Please review. Many thanks !
Daniel

[3]
http://dev.w3.org/csswg/css3-speech/#voice-pitch
Received on Saturday, 22 January 2011 12:08:24 GMT

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