ClearOne comm AP800 operation manual Glossary ~ E-S

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Glossary ~ E–S

Echo Cancellation The process in which acoustic echoes are canceled. This is accomplished by sampling the distant audio that is amplified through the loudspeaker in the room. When this audio is picked up by the microphone (this is acoustic echo), an echo canceller eliminates or “cancels” the echo.

Equalization The enhancement of audio which can include high, low and band pass filtering. Equalization is used to filter out hum, noise, and other unwanted audio. Is also used to tailor the sound for the best intelligibility and ease of listening.

Four Wire Typically refers to audio in and out of a video codec.

G-LinkA high speed digital network bus used to link AP800, AP400, and AP10

units.

Gentner Distributed Echo Cancellation ClearOne’s proprietary system for applying echo cancellation individually to each mic input.

Hold Time The amount of time an automixer waits after a microphone channel has no stimulus before beginning the off attenuation process.

Integrated Dialing The ability of a telephone hybrid to dial (generate touch tones) via an RS-232 serial connection.

Matrix Mixer A mixer that allows routing of any input or combination of inputs to an output or any combination of outputs.

Number of open microphones (NOM) An automixing function that establishes a constant microphone gain in the room. As more microphones are activated, each microphone’s gain is reduced and vice versa.

Omni-directional Microphone A microphone that picks up audio in a 360-degree

pattern.

PA Adaptive Mode An automixing function exclusive to ClearOne products that keeps microphone channels from activating when distant or other audio sources are amplified through a loudspeaker in a room.

Reverberation Audio in a room that bounces off a wall, ceiling, table or other objects and then is picked up by microphone. High reverberation causes listener fatigue and makes audio difficult to understand.

Simultaneous Two Wire/Four Wire The ability of a teleconferencing device to connect to a video codec and a telephone line simultaneously.

Sound Pressure Level (SPL) The measure of acoustical audio in the air. Is measured in dB using an SPL meter.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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Contents AP800 Audio Conferencing System AP800 Installation ClearOne Part No July 2002 Rev Table of Contents AP-Ware Software AppendicesIntroduction Product OverviewFeatures Technical Support Professional Services GroupSales and Customer Service ClearOne Communications EuMEA GmbHUnpacking Controls and ConnectionsFront panel Rear panel Introduction ~ Controls and ConnectionsLink Network Link busLink network will allow interconnection of up to eight Equipment Requirements Power requirementsEquipment placement Auxiliary equipmentHardware Setup Connecting the unitTo connect the AP800 Installation ~ Installation Networking UnitsLink connections Device IDs To create a G-Link networkTo set the device ID Mixer Mode Installation ~ Installation Device typesTo set mixer mode ErrorsEC reference LCD Programming Installation ~ LCD ProgrammingSwitching from one main menu category to another Menu TreesAdjusting a value Installation ~ LCD ProgrammingLock Panel Select PresetSystem parameters Set PasscodeUnit ID PA Adaptive ModeDevice ID Gate ParametersFirst Mic Priority Last Mic ModeMaximum Number of Mics Gate RatioHold Time Decay RateTo determine ambient level RS-232Manual Ambient Baud RateSerial Overrun Errors Modem ModeClear Password TimeoutInput Parameters Inputs 1-8, Input GlobalChairman Mic High Pass FilterThree-Band EQ Adaptive AmbientInputs A, B, C, D Echo CancellerNLP Adjust AEC ReferenceOutputs 1-8, A-D Output ParametersRouting Parameters Subbus 1Echo Cancellation Setup Routing GuidelinesInternal Subbus EC Reference bus Master UnitSlave Unit Default Meter Meter ParametersInputs, Outputs, ERL, and Erle Technical Services Group ~ 1-800-283-5936 USA ~ Description AP-Ware software requirements64MB RAM Installing AP-Ware To install AP-WareTo increase volume Remote ControlVolume Control To decrease volumeMuting To mute an inputTo mute an output Appendix a Specifications FCC, CSA, CEAppendix B Warranty This warranty is void ifAppendix C Compliance FCC Part 15 complianceAppendices ~ Appendix C Compliance Appendix D Connector Pinouts Pin Number Definable Status Default DescriptionControl/Status a pinout +5VDC Pin Number User Definable* Status Default DescriptionControl/Status B pinout Control/Status Pinout NoteRS-232 COM DCE Port Pinout Appendix E AccessoriesAppendices ~ Appendix E Accessories Pin Number ControlAppendices ~ Appendix F Serial Commands Appendix F Serial CommandsCommand syntax MrefAP800 Serial Commands 40Appendices ~ Appendix F Serial Commands Error CodesCommand Function Amblvl AambAGC ExplanationChairo BaudDecay DfltmERL ErleFlow FMPFPP Examples GainGate ExampleHold GmodeGratio LFPLMO LVLMaster Device Mdmode MdmodeMEQ Device MEQ CH BandMline MHPMinit MmaxMref MpassMtrx InputOutputmix Mtrx 18Device Mute CH W MuteNLP Device NLP CHDevice NOM CH NOMOffa Device PAAPcmd ExampleDevice Pevnt Location Event Event List LFP, PRESET, MUTE, GAIN, AGC, EQ, GMODE, ChairoPevnt EventPreset RefselTout Device UID UIDVER Device VERInputs = Gated Routing Matrix Setup~ Appendix G SWorksheets AppendicesSystemwide Parameters Auto Mix Parameters Appendices ~ Appendix G WorksheetsBus Glossary Glossary ~ A-DGlossary ~ E-S Glossary ~ T-Z Index Index ~ A-Z

AP800 specifications

ClearOne has established itself as a leader in the audio and video communication technology space, and the ClearOne COMM AP800 is a prime example of the company's commitment to providing high-quality communication solutions. The AP800 is an advanced audio processing unit specifically designed for professional audio environments, including conference rooms, auditoriums, and other large venues that require exceptional audio clarity and performance.

One of the standout features of the ClearOne COMM AP800 is its robust digital signal processing capabilities. It is equipped with powerful, sophisticated algorithms that enhance audio quality by minimizing background noise and echo, ensuring crystal-clear communication even in challenging acoustic environments. This makes the AP800 ideal for videoconferencing, teleconferencing, and live events where audio fidelity is paramount.

The AP800 features multiple microphone inputs, allowing users to connect a variety of microphone types, including boundary microphones and handheld units. This versatility enables configuration for different setups, ensuring that audio coverage is optimal for all participants regardless of their location within the space.

Another impressive characteristic of the ClearOne COMM AP800 is its user-friendly interface. The unit comes with a graphical interface that simplifies configuration and control. Users can easily manage audio settings, adjust levels, and monitor system performance in real time. This intuitive design streamlines setup and operation, making it accessible for users at all technical skill levels.

The AP800 also supports VoIP and SIP technologies, making it an ideal solution for businesses looking to integrate their audio systems with modern communication networks. This feature enhances interoperability with various communication platforms and devices, ensuring seamless connectivity for users.

For added flexibility, the ClearOne COMM AP800 can be integrated into larger audio systems. It can work harmoniously with other ClearOne products and third-party equipment, leveraging its modular design to create a comprehensive communication environment tailored to specific needs.

In summary, the ClearOne COMM AP800 represents a significant advancement in audio processing technology, offering state-of-the-art features for high-performance audio applications. Its powerful DSP capabilities, versatile microphone support, user-friendly interface, and seamless integration capabilities make it a must-have for any organization seeking to elevate their audio communication experience. With the AP800, ClearOne continues to push the boundaries of what's possible in professional audio technology.
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