Adding Voice Feedback to Accessories
Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=38787
Printed Date: July 13, 2025 at 4:59 AM
Topic: Adding Voice Feedback to Accessories
Posted By: javageek
Subject: Adding Voice Feedback to Accessories
Date Posted: September 08, 2004 at 9:12 AM
Ok, this may sound trivial to some people, but I would like to add voice feedback to a couple of accessories. This will fall into the WBIC (Why? Because I Can) category. I would like it to play a voice when I switch on an accessory. For example, when I arm Nitrous I would like it to say "Nitrous Armed" in the interior of the car. What is the best way to go about doing this mod?
Replies:
Posted By: dxav
Date Posted: September 08, 2004 at 1:04 PM
You can use a voice recorder chip (similar to the non-cassette type answering machines) that can record your own voice. Or you can download (probably serially [SPI, I2C protocol]) a digitized voice from free software that generates voices directly. I don't remember the exact part, but digikey.com may have it. I don't know if there is another simple way to do it.
But then you would need the IC to output to a small speaker under cirtain conditions. For example, 1 pin on the IC would 'listen' for an input (i.e. a hi input -- signaling you flipped a switch) then outputing an addressed line to the speaker. You may need additional combinational logic or a mux depending on how many different outputs you are looking for. But remember, for each 'voice command', you will need to know it's size, and how many data registers it would consume.
A microcontroller would help alleviate all this addressing.
That may have been too complicated, but that is all I can think of.
I hope an easier way surfaces, if I think of one, I will post again.
Good Luck,
DXAV
Posted By: dxav
Date Posted: September 08, 2004 at 1:37 PM
Check out digikey for ISD1200 Series voice chips. Up to 80 addressable blocks, and up to 12 sec records. Preamps, and ADC/DAC all handled within. Also has pushbutton playback (for your switch application). $5 for the chip, and only a little extra support circuitry.
Good idea, everyone, or no?
DXAV
Posted By: javageek
Date Posted: September 13, 2004 at 7:20 AM
So with one chip I can have 80 different phrases?
Posted By: dxav
Date Posted: September 13, 2004 at 9:05 AM
Sorry for such a convoluted answer. But, basically you can. Just check the PDF documentation, with your username, I will assume you know about coding and addressing memory.
Good luck,
DXAV
Posted By: javageek
Date Posted: September 13, 2004 at 2:09 PM
No, I don't know anything about programming. Think Coffee and Computer Geek. :)
Posted By: javageek
Date Posted: September 13, 2004 at 3:34 PM
I found a link with schematics on how to build your own recorder and playback unit. This should be easy enough to incorporate into mobile audio. In case anyone is curious, here is the link. https://www.scary-terry.com/dsr/dsr.htm
Posted By: dxav
Date Posted: September 14, 2004 at 7:12 AM
Yeah, that is basically the same chip I mentioned earlier. Are you going to try using it?
Good luck,
DXAV
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