Motion Computing M1400 Manuel D’Utilisation

Chapter 4  Using Your Motion Tablet PC

Motion Computing M1400 Tablet PC User Guide 53

The Tablet PC contains two microphones with features that help optimize 
the sound capturing capabilities of your Tablet PC for voice recognition and 
Voice over IP (VoIP):

•

Array Processing or “beam forming” software—Removes all sound out-
side the angle of acceptance

•

Noise Supression—Removes background and ambient noise

•

Acoustic Echo Cancellation (AEC)—Removes echo caused by micro-
phone pick up of the system’s speaker output and prevents feedback.

The microphones can be focused to several angles—narrow, wide, full-
room—and can be trained to detect sound from in front of or to the side of 
the Tablet PC, or in the entire room. 

You may want to focus the microphones to a narrow angle in a “voice-noisy” 
environment (such as in a meeting) or for dictation or Internet phone use (for 
Voice over IP—VoIP).

1. Open the Motion Dashboard.
2. Under Microphone, tap Narrow 

Focus. The microphone now 
has a narrow “angle of accep-
tance” that focuses on a spot 
near the center of the display 
when the Tablet PC is in an 
upright viewing position.

To change the microphone focus for dictation or VoIP:

NOTE: Set the Microphone slider to between 50% and 75% and NOT as shown 
in this illustration. 

1. Open the Motion Dashboard.
2. Under Microphone, tap Narrow 

Focus. 

3. Position yourself at the new 

location where you want the 
microphone to detect the sound. 

4. Tap Train. A block of text 

appears.

5. Speaking normally towards the Tablet PC microphones, read the text 

aloud. This takes 20-40 seconds. When the microphones are focused, 
the text disappears. 

IMPORTANT: The microphones keep the new setting until you retrain them or 
until you change the microphone to a different focus. When you change to 
another setting (such as “Wide” to “Meeting”), the microphones return to the 
default focus.