[ID3 Dev] Accessibilty extension draft is posted

Chris Newell chris.newell at rd.bbc.co.uk
Thu Jun 22 02:07:23 PDT 2006


Scott,
At 17:16 21/06/2006, you wrote:
>On Wednesday 21 June 2006 17:06, Chris Newell wrote:
>> For frames where only one instance is permitted there is generally no
>> "Description" field and therefore this would be set to $00.
>
>That doesn't work, for instance, with the W... frames.  (i.e. WOAR)  Search 
>through the frames spec for "more than one" and you'll see that there are a 
>variety of formats used for frames that allow multiple instances.

The original proposal was really intended for frames that carry human readable text strings as I didn't think it would be very useful to read out things like URLs.

>It also doesn't address the problem of updating (when the audio and text go 
>out of synch) mentioned in my last mail.

I see your point, although you can break most things with an authoring tool if you try hard enough!

I'm warming to the idea of a lookup table mapping strings to audio clips, since this would support any frame type and solves the multiple instance problem neatly. How about using a hash code approach to map strings to audio clips?

Chris


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