One-time programmable audio circuit One-time programmable audio circuit - diyAudio
Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Construction Tips Construction techniques and tips

One-time programmable audio circuit
One-time programmable audio circuit
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 8th September 2010, 07:23 PM   #1
U811138 is offline U811138
diyAudio Member
Join Date: Sep 2010
Default One-time programmable audio circuit

I've been trying to find a source for an existing circuit, or help designing a new one, that does something (seemingly) very simple:

1. Easily one-time programmable with a good-quality mp3 or PCMu wavefrom (i.e. not recorded from a mic)
2. Drives a (small but loud) speaker directly
3. Fits in a 2"h x .25"w footprint, including battery, switch and speaker

I first approached Kowatec in CA and purchased several demo boards and programmers (all are PROM-based APlus ICs) but none of their products was able to sufficiently drive a speaker that was loud enough to hear from 3 feet away, or could be programmed simply (i.e. with a simple USB drag-and-drop UI, like a flash drive).

The target is simply something that can be embedded in a (thick) business card, much like the Hallmark cards you can purchase today, except smaller.

Anyone have any ideas or guidance?

Thanks in advance

  Reply With Quote


One-time programmable audio circuitHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Time alignment circuit? Bad silver Car Audio 4 30th January 2007 08:00 AM
Does this Programmable DSP Crossover Have Good Potential for Audio??? loudandclear Multi-Way 1 16th November 2005 06:24 AM

New To Site? Need Help?

All times are GMT. The time now is 06:33 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio