Author Archives: Pneumatic

Demo of a short game

This is the first demo of the phone more-of-less complete.  You can see a video over at my facebook page.  Apologies for those who don’t use facebook, but the raw video is too big for wordpress to handle. After the demo, I decided that it was time to tear the phone apart and try interfacing […]

In the phone

So, after a several month hiatus, I’m back at it.  I managed to get all the parts into the phone, though to make room I had to remove the bells from the ringer mechanism, which makes me sad. You’ll notice the USB cord hanging out the back: that’s for charging the on-board 1,100 mAh LiPoly […]

Full handset functional

So it turns out that the transformer wasn’t necessary.  I broke out a pocket oscilloscope, and it boosted the voltage from 1.5V pp, to 7.5V pp, and the resulting volume in the earpiece was VERY LOUD, so I tried without the transformer, and it worked perfectly, and at a much more reasonable volume with the […]

It speaks!

Thanks to an impedance matching transformer from Radio Shack, I can now play audio though the handset.  Yay!  It still needs to be a little more polished, but the basic concept works. it_speaks.mov  

More choices for TTS engines

Here is a mostly complete list of offline text-to-speech engines I have at my disposal.  I have cleaned up the text somewhat from the last time, so they should be easier to understand.  Let me know what your favorite is in the comments. Espeak is a very robotic, but relatively lightweight engine: Festival is a quirky, […]

Sample TTS output

I’ve got two competing TTS (text-to-speech) engines right now, espeak and festival.  Each will require some tweaking, but here is a very short game fed through each.   Festival:   Espeak:   Let me know what you think in the comments  

GruePhone Lives Again!

Wow, it really has been a while, but improvements in technology have given me an idea of how to improve upon the original Dial-a-Grue phone. The idea is to use a small embedded computer, this time a $9 “chip” computer and actually embed it into a gutted phone.  From there I can use text-to-speech (tts) and […]

Media Coverage and PAX Display

It’s been a while since I’ve posted.  Once the Maker Faire was over, I kinda lost steam, but it’s time to sum up.  It was great to see all of you out there, and I had a great time showing the device off. I got a little media coverage.  HackADay wrote up a short piece, […]

Putting it all together..

This post is long overdue.  The hardware has been complete (enough) for weeks now, and the software has been improving incrementally.  It is the impending arrival of the Maker Faire that finally prodded me enough to finish writing this up.  I’ll be there showing this off.  Here’s what the completed project (mostly) looks like:  (more […]