Decode and Notification Beep settings

I am using Enterprise Browser v1.6 on an MC92N0 running android 4.4.4.

 

I can get most Enterprise Browser API calls to EB.Notification and EB.Barcode to work just fine but I cannot these calls to the API affect the "Beep" on decode

 

EB.Barcode.decodeVolume(1);

EB.Barcode.decodeFrequency(2500);

EB.Barcode.decodeDuration(800);

 

or to generate a beep when I need it to:

 

EB.Notification.beep({volume:2,duration:800,frequency:3000});

 

What am I doing wrong?