How much Anthony?
The converters should not be more than $50 or so.
Thank you!
Brett Winchester KD7JN
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-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]] On Behalf Of Anthony Vece
Sent: Thursday, May 08, 2008 3:16 PM
To: [log in to unmask]
Subject: Re: Better Access To TV Programming
Wasn't Sony supposed to introduce a system that would accomplish this?
I looked at the Bravea but, they are really on the expensive side.
73 De Anthony W2AJV
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ECHOLINK NODE NUMBER: 74389
----- Original Message -----
From: "Martin McCormick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, May 08, 2008 11:17 AM
Subject: Re: Better Access To TV Programming
> That is an interesting thought. It would take a couple of things
> for this to come about. The crawls at the bottom of the screen
> never appear as ASCII text in your television. They are just
> pixels lit up to form letters and numbers by a character
> generator at the television studio wherever that happens to be.
> The last time it was something that a speech synthesizer could
> handle was just before the data were fed in to the CG or
> character generator.
>
> To easily cause a viewer to hear those data, it would be
> necessary to either feed it in to a speech synthesizer at the
> studio and send it out over the Second Audio Program or SAP
> channel or send the data over something like the closed-caption
> system. Regular viewers would see the CG graphics and viewers
> with a special television would be able to hear a synthesized
> voice read the text.
>
> To actually turn CG graphics in to speech would require
> a full OCR program plus the speech synthesizer, basically a
> fully-working computer inside your television, not just a couple
> of chips. I don't know how much secondary capability was
> designed in to the new NTSC digital video standard, but
> hopefully, it also has a second audio channel and
> closed-captionning.
>
> For those who aren't familiar with the old system, the
> Closed-captions, VChip, and a few other control signals are sent
> in the first 20 or so lines of a picture which is not normally
> visible to viewers. Special codes used for automatic picture
> color adjustment, time synchronization such as the "autoclock"
> feature on your VCR, and a few other things such as descrambler
> unlock codes in some pay TV systems are all crammed in to those
> few scan lines.
>
> Martin McCormick WB5AGZ Stillwater, OK
> Systems Engineer
> OSU Information Technology Department Network Operations Group
>
> Bob Martin writes:
>> About 15 years ago, I participated in a half day conference
addressing
>> how
>> manufacturers and broadcasters could make TV more accessible to those
of
>> us
>> who are blind. Among the suggestions I made is to install a chip
which
>> would read those crawlers at the bottom of the screen, those that
give
>> emergency and programming messages. To my knowledge, that isn't
>> happening.
>>
>> Another grief I have is when they cut to commercials while presenting
the
>> stock market reporting graphics. I understand that it makes a nice
>> transaction visually but leaves us hanging. Perhaps they think all
of us
>> don't earn enough to have money to invest.
>>
>> 73
>> Bob Martin
>>
>> EchoLink Node - 55127
>> Please visit http://www.wan-leatonks.net.
>>
>>
>
>
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