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Re: [css3-speech] cue volume

From: Daniel Weck <daniel.weck@gmail.com>
Date: Thu, 7 Jul 2011 01:50:50 +0100
Cc: fantasai <fantasai.lists@inkedblade.net>
Message-Id: <C7BF5BAC-D1FE-49F3-9C1A-3CB54D184B5C@gmail.com>
To: "www-style@w3.org style" <www-style@w3.org>
Please verify that the updated prose makes sense, and looks  
implementable:

http://dev.w3.org/csswg/css3-speech/#mixing-props-voice-volume

http://dev.w3.org/csswg/css3-speech/#cue-props

Thanks!! :)

On 7 Jul 2011, at 01:01, Daniel Weck wrote:

> I totally agree with you. My original modification was to map cue  
> volume relatively to voice-volume (not just for the 'silent' case).  
> The problem was in describing this desired effect in a implementable  
> way (i.e. intrinsic audio cue  average wave amplitude isn't  
> necessarily the same as standard voice volume level from TTS  
> engine). Let me have another go now that we have improved voice- 
> volume. We can completely make the "volume level" solution rely on  
> the user-perceived loudness, i.e. on the keywords. Authors don't  
> need to care about intrinsic volume levels, which should be  
> normalized/handled by the user-agent in order to offer a decent  
> listening experience.
> Daniel
>
> On 6 Jul 2011, at 23:33, fantasai wrote:
>
>> On 07/06/2011 03:14 PM, Daniel Weck wrote:
>>>
>>> On 6 Jul 2011, at 22:56, fantasai wrote:
>>>> I'm wondering now, voice-volume controls the cue when
>>>> it's value is 'silent', but not when it's anything else. That seems
>>>> somewhat odd. Do we want cues linked to the voice-volume? Or should
>>>> they be independent? (It is *voice*-volume, after all.)
>>>
>>> We talked about this before: the problem is that in the "aural box
>>> model", the selected element is "decorated" with pause, rest and  
>>> cue,
>>> so when the element itself is silent (well, its contents), its cues
>>> should be too (there is an analogy with margin, padding, and border
>>> => the element visibility impacts its "decorations" too).
>>
>> Makes sense. Should shifts in the voice volume also affect cues?
>> Or optionally affect cues (e.g. if there's an 'auto' cue volume
>> then the difference between the voice-volume and 'medium' is applied
>> to the cue)?
>>
>>
>> Also how would cues be aligned with the voice volume, anyway? This
>> does seem to be important. Like, suppose my device is reading the
>> page in a loud environment. I've set my preferred volume ('medium')
>> to be loud, but the cues are all pre-recorded, so they will not be
>> loud. Then suppose I'm using my reader in a quiet environment. I
>> set the voice volume to be quiet. But the cues will still be loud.
>> Seems like a problem.
>

Daniel Weck
daniel.weck@gmail.com
Received on Thursday, 7 July 2011 00:51:21 GMT

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