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[DPRG] RBNO 12/11/2007 and r2's voice
Subject: [DPRG] RBNO 12/11/2007 and r2's voice
From: Doug Emes
kyojin at gmail.com
Date: Mon Dec 10 17:48:02 CST 2007
Glenn,
Looking forward to tomorrow night's RBNO. Please bring that servo
testor and that TI eval set if you can.
All,
As for R2D2: I found Scott Gray ( http://www.graychalet.com/Controller.html) is
making a "system" for controlling all the lights that looks really
nice. So I decided
to give up on my LED project (his doubles as VU meters, scrolls text
on the LEDs)
and instead jump in with some other guys on designing a new audio
interface using
the speakjet chip for R2's "voice". Scott's still uses a Vmusic2 to
play canned MP3 sounds but I would prefer to use an actual synthesis
chip, it seems much more "droid" to me =). For that matter it would
also allow me to do regular text to speech with a tts256 chip in front
of the speakjet, or writing my own text to allophone chart to provide
a voice to a robot. (http://www.speechchips.com)
Anyway, I am looking at using the following Texas Instruments evaluation board:
http://focus.ti.com/lit/ug/slau227/slau227.pdf
I think the eZ430-RF2500 would rock at driving the speakjet chip and
would also
be able to wirelessly transmit a text stream to "fake it" so the other
droids wouldn't
have to interpret the beeps, etc. they could just look at the text stream. The
"leftover" processing power of the 430 could be used to also drive the
signals to the
servors for opening/closing the panel doors.
I also looked at the CC2430 which would combine the 2500 with a 8051
mcu. This chip is about 10 bucks, so it probably would be one of the
lowest cost options of interfacing with the speakjet.
Anyways, just wanted to share with the group the stuff I have been researching.
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