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Re: [css3-speech] voice-pitch

From: Alan Gresley <alan@css-class.com>
Date: Thu, 07 Jul 2011 14:01:15 +1000
Message-ID: <4E152F8B.9000906@css-class.com>
To: fantasai <fantasai.lists@inkedblade.net>
CC: www-style@w3.org
On 7/07/2011 11:26 AM, fantasai wrote:
> On 07/06/2011 05:47 PM, Daniel Weck wrote:
>>
>> On 7 Jul 2011, at 01:37, fantasai wrote:
>>> ... but when is multiplying the pitch itself by a
>>> percentage useful?
>>
>> I want the speech output for a given element/text to sound
>> "half as squeaky" as its siblings/text. :)
>
> Would that really be a percentage of the Hz, though?
>
> ~fantasai


No. One octave higher is a doubling of Hz. One octave lower is a halving 
of Hz. It means that 50% is scaled closer to 100% than it is to 0%. 
Similar to a transition from color to full alpha in a gradient. Somewhat 
like the below scale where every 50% step (of the prior octave / vector 
between points) is doubled.


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--

Alan Gresley
http://css-3d.org/
http://css-class.com/
Received on Thursday, 7 July 2011 04:01:42 GMT

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