Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
We are investigating the problem and will update you shortly.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


   

Computer recordable digital language master cards

 A 2D barcode can store several seconds of voice on a paper card.
 
(+1, -1) 		  [vote for,
against]

Remember the language master that was in elementary school which used magnetically striped cards which recorded snippets of voice? Why not update this technology with a CCD strip scanner and a CELP/Speex decoder that can play back paper cards with 2D barcodes on them? You record your voice in a program that compresses it to 4.8 Kbps or less and then print out the file on a 300 DPI or better black and white printer. The only disadvantage I can think of would be that you wouldn't be able to re-use cards, of course, that would prevent the kids from erasing cards and recording them with sewer chute language.

For the record, with Speex 2.1 Kbps compression and PaperDisk, I have recorded the phrase "Those who live by the sword get shot by those who don't." into less than a 1 square inch space.

—Amishman35, Nov 26 2004

Language Master Cards http://www.btintern...ge_master_cards.htm
The original. Picture and a magstripe. [jutta, Nov 26 2004]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)







 

back: main index
business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle