BREAKING NEWS!!!!
There is a brand new free app which makes making QR codes which link to audio very, very easy!
Try Chirp.qr :
https://itunes.apple.com/us/app/chirp-qr/id1048912963?mt=8
Other ways to make Audio QR Codes:
To make audio instructions which children can hear on their iPads by following a QR Code:
Steps:
1. Make Audio
2. Get a link to the audio
3. Make a QR Code for that link
4. Print or share that QR Code
Tools to Consider:
App - Adobe Voice
App/Website - Audioboo
Qr Code Creators
Website: http://i-nigma.com/CreateBarcodes.html
Website: http://www.qr-code-generator.com/ or qrstuff.com