TC70 Scan Decode Beep (EB 1.3/1.4)

Is there a way to configure the scan decode beep on the TC70 with the latest version of Enterprise Browser? A previous discussion mentioned that it would be fixed in 1.3, but the release notes for the 1.4 release still list that the meta tags/JS interface for changing the scan sound settings are still non-functional on the TC70. [This is using the native EB support for the barcode scanner and not using DataWedge.]