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Power over Ethernet is delivered in one of the following ways:
•
A network switch that provides PoE
•
A PoE injector device
Installation
Microphone Placement
Room Variables
Optimal microphone placement is determined by the seating arrangements and infrastructure. Follow these guidelines for the
best possible results:
•
In rooms with flexible furniture arrangements or multiple array microphones, use the microphone configuration tool in the
web application or Shure Designer software to ensure that the coverage is adequate for all seating scenarios.
•
The lobes should be pointed towards the front of each talker. Carefully consider placement in rooms where talkers may
face a screen during a video conference.
•
Avoid installing the microphone directly next to unwanted sound sources, such as air vents or noisy video projectors.
•
Consider installing acoustic treatment to improve speech intelligibility in rooms that are too reverberant.
Mounting Height
The maximum mounting height that can be set is 30 feet (9.14 meters). In a typical acoustic environment , the microphone
maintains an "A" rating based on the STIPA (Speech Transmission Index for Public Address systems) international standard at
distances up to 16 feet between the microphone and talker. In better acoustic environments, the STIPA "A" rating may extend
beyond 16 feet.
Consider the following when determining a mounting height:
•
The pickup pattern of the ceiling array is narrower than a shotgun microphone, and therefore it can be placed farther from
the source than any other microphone. While the web application shows an ideal coverage zone for each channel, keep in
mind that there is no specific barrier at which the audio degrades or gates off. Lobe sensitivity data is available for each
width setting in the product specifications.
•
Like all microphones, tonality changes as the distance from the source increases.
•
The intelligibility scale helps to predict how the microphone will sound at a given height.
•
The coverage area of the lobes increases at farther distances.
[1] Room conditions: RT60 (reverb time) = 500 ms @ 1kHz, A weighted room noise = 40dBSPL(A)
[2] IEC-602682-16 standard
Intelligibility Scale
The intelligibility scale objectively compares the acoustic performance of the array microphone with a cardioid gooseneck mi
crophone at various distances. This information is useful for predicting how the array microphone will perform at a given dis
tance and to determine an ideal mounting height. The data in the intelligibility scale table is derived from measuring the micro
phones to meet an equivalent value from the Speech Transmission Index IEC-602682-16 standard.
2
Shure Incorporated
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