I added the barcodescanner plugin to my phonegap project.
I tried to scan qr codes using my android device in witch the app works perfectly.
But when trying to run my app on my iPad, I can't hear the beep sound.
I searched on the net to found if someone faced that problem, what I found is just how to disable the beep:
https://github.com/phonegap/phonegap-plugin-barcodescanner/issues/54
$cordovaBarcodeScanner is the latest version & works perfectly on iOS & Android!