Appendix

iPower Admin Setup Menu

Admin Tools :: Audio :: Audio Preferences

Audio algorithm for ISDN (H.320) and LAN (H.323) calls

iPower Field

Type

Meaning

Audio algorithm for

Pull down menu

Please refer to the iPower administrator guide for

ISDN calls

 

the specifics of each protocol.

Audio algorithm for

Pull down menu

Please refer to the iPower administrator guide for

LAN calls

 

the specifics of each protocol.

Encoding law for G.711

 

 

iPower Field

Type

Meaning

Automatic

Radio button

Sets the G.711 encoding law to use when a video

a-law

 

call begins. The µ-law is used in North America and

-law

 

some parts of Japan. The a-law is used in most

 

European countries and parts of Japan.

 

 

Admin Tools :: Audio :: Audio Inputs

 

Microphone

 

 

 

 

 

iPower Field

Type

Meaning

Use echo cancellation

Check box

Integrated Dynamic Echo Cancellation (IDEC)

(IDEC)

 

automatically cancels the echoes caused when

 

 

microphones pick up sounds coming from the

 

 

monitor’s speakers. Keep echo cancellation enabled

 

 

for normal use..

Use noise suppression

Check box

Filters out background noise from your

 

 

videoconference, such as air conditioners or

 

 

ventilation system noise. Keep automatic noise

 

 

suppression enabled for normal use.

Use Automatic Gain

 

Lets the far end hear a constant sound level, even

Control (AGC)

 

when the sound level changes at the near end. For

 

 

example, when a speaker at the near end moves

 

 

away from a microphone, the far end detects no

 

 

difference in volume. Keep this feature enabled for

 

 

normal use.

Auxiliary Audio input

 

 

iPower Field

Type

Meaning

Use Automatic Gain

Radio button

Adjusts Automatic Gain Control for additional audio

Control (AGC) for

 

inputs (such as a VCR) in order to keep them

auxiliary audio source

 

consistent with PowerMic volume levels, so that

 

 

the volume does not change as people move or

 

 

different people speak.

Global Management System User’s Guide

Appendix

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Polycom DOC2091A manual Admin Tools Audio Audio Preferences, Admin Tools Audio Audio Inputs

DOC2091A specifications

The Polycom DOC2091A is a state-of-the-art communication device designed for conference calls, making it a cornerstone in modern business environments. Renowned for its advanced features and cutting-edge technology, this model ensures seamless collaboration among teams, regardless of their geographical location.

One of the standout features of the DOC2091A is its superior audio quality, facilitated by Polycom's renowned Acoustic Clarity technology. This technology ensures that all participants can speak and hear clearly without interruptions, feedback, or distractions. Whether in a large conference room or a small office, the DOC2091A adapts to varying acoustic environments, delivering crisp and natural sound.

The device also supports wideband audio, which allows for a broader frequency response. This means that users experience a richer sound quality, making conversations more engaging and effective. The built-in microphone array captures voices from all corners of the room, while the echo cancellation feature ensures that echoes are eliminated, providing a captivating conferencing experience.

In terms of connectivity, the Polycom DOC2091A is equipped with multiple interfaces, including USB and Bluetooth, allowing it to connect effortlessly to various devices such as laptops, smartphones, and tablets. This versatility ensures that users can quickly set up calls, regardless of the technology they are using.

Moreover, the DOC2091A features integrated video capabilities, supporting HD video conferencing through compatible platforms. This enhances communication further by allowing visual cues to be conveyed during discussions, making virtual meetings more interactive and productive.

User experience has been prioritized in the design of the DOC2091A, with an intuitive interface that allows for easy navigation. Users can quickly access essential functions such as mute, volume control, and call management without extensive training.

The device is also designed with portability in mind, making it suitable for both fixed office environments and on-the-go usage. Its lightweight build and compact design allow it to fit into various settings effortlessly.

In conclusion, the Polycom DOC2091A exemplifies the future of communication technology. With its exceptional audio performance, versatile connectivity options, and user-friendly design, it is an essential tool for businesses aiming to enhance collaboration and communication in an increasingly remote and digital world. This device is truly a vital asset for any organization looking to streamline its conferencing capabilities.