Vocera Communications AB3000 User Manual

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Increased Speaker Volume 
Badge Features ··· 19
Increased Speaker Volume
The B3000 has a speaker with 85 dBSPL peak loudness, more than 10 dB louder
than the B2000 speaker, making it easier to use without a headset in noisy
areas or areas with persistent background noise.
Integrated Noise Cancellation
The B3000 has enhanced noise cancellation as well as better acoustic echo
cancellation. The badge has an array of four directional microphones (two at
the top and two along the right front side), each with their own echo cancellor,
reducing background noise while you speak.
The following figures illustrate B3000 microphone sensitivity. They show front
and side views of someone wearing the badge using a lanyard or a universal
clip. The shaded area above the badge is the speech zone, the region in which
audio can be detected.
 
 
The following figure shows the primary B3000 microphone and the three noise-
canceling microphones.