Highly directional range of microphone
The ideal directional range of a microphone is shown below. The numeric value is a rough standard.
Use the value as the reference of the videoconferencing room used.
1: For internal microphone
2: For extension microphone (PCS-A300)
3: For extension microphone (PCS-A1)
0.5 to 1 m
0.5 to 1.2 m