Headset Volume; Maximum Volume Level - Honeywell Dolphin 70e User Manual

Keyboard Layout Hot Key
Select the hot key that is used to scroll through the available on-screen keyboard layouts. If no keyboard is displayed,
pressing the hot key calls up the on-screen keyboard. When the on-screen keyboard is displayed, pressing the hot key
scrolls through the available layouts. Options are:
• N o n e
• Back
• End
• Scan
• Call

Headset Volume

By default, the maximum headset volume for the Dolphin Black is limited. Because some headsets may play at lower
volumes than others, it may be necessary to override the maximum headset volume. To override the maximum volume
programmatically:

Maximum Volume Level

To prevent possible hearing damage, do not listen at high volume levels for long periods.
To change the maximum volume level in the registry:
• For Managed .NET development (C#, VB.NET) use the Registry Class in the Microsoft.Win32 namespace documented
here:
http://msdn.microsoft.com/en-us/library/microsoft.win32.registry.aspx
• For Native development (C/C++) use RegOpenKeyEx() and RegGetValue() documented here:
http://msdn.microsoft.com/en-us/library/aa914389.aspx
The following registry items need to be changed:
• Set the value for the HKEY_LOCAL_MACHINE > Software > SysAudio > Headset > 001C key as follows:
• Change to value to 511 to allow the increased maximum headset volume.
• Change the value to 487 to return to the factory maximum volume setting.
• Set the value for HKEY_LOCAL_MACHINE > Software > SysAudio > Update key to 1.
The volume can then be adjusted as desired:
• The volume can be adjusted by an application via the registry keys or an API.
• The user can use the volume keys on the Dolphin Black to adjust the sound volume to a comfortable level.
WARNING To prevent possible hearing damage, do not listen at high volume levels for long periods.
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