
Chapter 14: Audio
Microphone
165
Psion Mobile Devices Developers Guide
Playing WAV files
C++: The playing of WAV files is controlled using the PsionTeklogix::Sound namespace, the Microsoft
Win32 APIs, or any other standard C++ WAV APIs.
Java: The playing of WAV files is controlled using the com.teklogix.sound package or any other standard
Java WAV package.
.NET: The playing of WAV files is controlled using the PsionTeklogix.Sound namespace, any other standard
.NET WAV APIs.
14.7 Microphone
Microphones are available on Psion computers as follows:
14.8 Audio Input
The Mobile Devices SDK does not provide any audio input APIs. For an overview of the process for
recording waveform audio see msdn.microsoft.com/en-us/library/bb545537.aspx.
14.8.1 Muting the Microphone During Voice Telephone Calls
The Mobile Devices SDK enables you to mute and unmute the microphone during telephone calls. For more
information see Section 19.13.13 Audio for Voice Over WWAN on page 225.
14.8.2 Controlling Microphone Gain
You can control the microphone gain on the following computers:
•Omnii
•EP10
• Earlier computers running an operating system that includes the mixer element.
Microphone gain is used for voice recognition. You can use the Hardware Audio Mixer APIs for this. For
information see msdn.microsoft.com/en-us/library/ms925312.aspx.
Computer Built-in Microphone Microphone Jack
7530 Yes No
7535 No No
8515 No Yes
8525 No No
8530 No No
Ikôn (7505) Yes Yes
NEO (PX750) Yes No
Workabout Pro (7525) Yes Ye s
Workabout Pro G2 (7527) Ye s No
Workabout Pro 3 (7527) Yes No
Omnii XT10 (7545XV) Yes No
Omnii XT15 (7545XA) Yes No
Omnii RT15 (7545XC) Yes No
EP10 (7515) Ye s No
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