tripletalk (was 4DOS)

[Kerry Hoath]

we have a usb doubletalk circuit and evaluation board and we'll give the 
eval board to whoever can write a driver for it.
It uses the ftdi usb2serial bridge and the v8660 chip.
It works with Jaws except the rate command goes up to 13 not 9.

we want to use this board in a brailler Curtin Uni wants to make but we 
don't have anyone able to write usb interface logic for the thing.
I guess this could run in userspace or something.
anyone who wants to write a driver get in touch and we can arrange to 
provide the evaluation board we have built.
the synth has both usb and serial ports, it takes power off the usb. 
headphones out only to keep the size down.
Regards, Kerry.

----- Original Message ----- 
From: "Kirk Reiser" <kirk at braille.uwo.ca>
To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca>
Sent: Thursday, February 28, 2008 11:58 PM
Subject: Re: tripletalk (was 4DOS)


>I can't tell you what the exact hardware is because I don't remember
> or maybe never knew.  It is I suspect a small pci board which can be
> placed in a computer or a separate box just like the Accent's were.
> It has interfacing circuitry that tie the pci bus and/or the USB uart
> to a RC Systems Doubletalk chip.  I don't know what Randy is calling
> that chip but it is based on the v8650 board but made into a LSI chip.
> That same chip is used in the bookport, book currier and a number of
> other products. The uart also services the rs-232C connector.
>
> It is true that Access Solutions were not forth coming in the
> beginning.  I suspect they thought they could make it on their own
> with the Microsoft Windows community but soft synths have been gaining
> a lot of prominence and so the hardware synth world is shrinking
> radically.  They have become much more helpful over the years.  I just
> haven't had time to write drivers to support the pci and usb portions
> of the device.
>
> As for the firmware, it is the same or almost the same as on the
> Doubletalk family of synths.  How Randy missed the bug is beyond me
> and for that matter him as well.  It's obviously a not very often used
> feature of the firmware but one I particularly like because it allows
> us to find out which version and form of the firmware is being used.
> Those version/parametre strings are slightly different for the groups
> Randy has sold to and supports.  For example the original Microtalk
> version of the firmware has a secondary flush command '^y' which only
> flushes up to the next newline/carriage return characters for software
> that supported it.  That gave ASAP the ability to provide a feature
> which could allow one to quickly scan through a document being read by
> just tapping the shift key to immediately move on to the next line.
>
>
> Kirk Reiser The Computer Braille Facility
> e-mail: kirk at braille.uwo.ca University of Western Ontario
> phone: (519) 661-3061
>
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