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Re: [css3-speech] Heads-up: CSS WG plans last call for css3-speech

From: Daniel Weck <daniel.weck@gmail.com>
Date: Mon, 12 Sep 2011 23:17:15 +0100
Cc: w3c-voice-wg@w3.org
Message-Id: <267FFBA7-E8A5-4E91-BE90-858D3F44CE9A@gmail.com>
To: W3C style mailing list <www-style@w3.org>, Alan Gresley <alan@css-class.com>, "paul.bagshaw@orange-ftgroup.com> <paul.bagshaw@orange-ftgroup.com" <paul.bagshaw@orange-ftgroup.com>
Hi Alan, I take your suggestion onboard.
Please read my reply to Paul, and let's see where this discussion leads.
Regards, Dan

On 18 Aug 2011, at 13:30, Alan Gresley wrote:

> On 18/08/2011 7:44 PM, paul.bagshaw@orange-ftgroup.com wrote:
>> The CSS-Speech module states that 'voice-volume' is related
>> to<ssml:prosody>'s 'volume' attribute, and that the 'cue' properties
>> are related to<ssml:audio>  (inferring its 'soundLevel' attribute).
>> It also states that the<decibel>  value of the 'cue' properties
>> "represents a change (positive or negative) relative to the computed
>> value of the ‘voice-volume’ property".
>> Authors often have no control over the volume level of the source
>> (initial waveform) of pre-recorded audio cues, and never have control
>> over the source of speech synthesis waveforms whose loudness differs
>> between speech engines and voices. However, the CSS-Speech module
>> makes the impractical suggestion that authors control the volume
>> level of audio cue waveforms in order the balance them with speech
>> rendered from text.
>> I suggest that the CSS-Speech module follows the SSML 1.1 paradigm
>> and that the 'voice-volume' and 'cue' properties should not
>> interact.
>> With regards,
>> Paul Bagshaw
> Please see this message (and thread) which is partly related to pre-recorded audio cues.
> http://lists.w3.org/Archives/Public/www-style/2011Aug/0041.html
> I would suggest that the spec has been developed with the view that it will be more common in the future that voice sympathizers will have pre-recorded audio cues that are more standardized.
> May I suggest that css3-speech may include non normative text to suggest to authors that such CSS properties and values for 'voice-volume' and 'cue' may not be widely supported and many users may not have such voice sympathizers of a certain standard that can fully support these properties.
> -- 
> Alan Gresley
> http://css-3d.org/
> http://css-class.com/
Received on Monday, 12 September 2011 22:17:49 UTC

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