Q-sys Level One Training: Teleconference

23 Questions | Total Attempts: 6549

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Q-sys Level One Training: Teleconference - Quiz

You are about to take the assessment for the Teleconferencing Training Module. Please watch ALL videos in Teleconferencing before attempting this assessment. You must correctly answer 80% of the questions to complete this assessment.


Questions and Answers
  • 1. 
    Multiple Choice: What does AEC stand for?
    • A. 

      Acoustic Echo Canceler

    • B. 

      Automatic Echo Cancellation

    • C. 

      Automated Echo Cease

  • 2. 
    Check Boxes What are the AEC terms for the two sides of a telephone conversation? Check two.
    • A. 

      Near End

    • B. 

      Far End

    • C. 

      Remote Caller

    • D. 

      Conference Room

  • 3. 
    Multiple Choice What is a common term for “acoustic reflections”?
    • A. 

      Echoes

    • B. 

      Speakers

    • C. 

      Reverb

  • 4. 
    True or False Because the speed of sound is constant, all different acoustic reflections take the same amount of time to travel from the near-end loudspeaker to the microphone.
    • A. 

      True

    • B. 

      False

  • 5. 
    Multiple ChoiceWhich sentence best describes what happens to acoustic reflections from the near-end loudspeaker that re-enter the microphone?
    • A. 

      They are distorted and attenuated as different surfaces absorb various frequencies

    • B. 

      They maintain perfect clarity along the entire path

    • C. 

      Only the direct path from the loudspeaker to the microphone is loud enough to be registered

  • 6. 
    Multiple Choice What is the average latency of telephone audio (one-way)?
    • A. 

      50 ms

    • B. 

      100 ms

    • C. 

      1 second

  • 7. 
    Multiple Choice What is the most effective way of avoiding acoustic reflections from reaching the far-end caller?
    • A. 

      Use an AEC system to cancel the reflections

    • B. 

      Turn off the microphone entirely while the far-end caller is speaking

    • C. 

      Conduct all future business meetings via e-mail or text messaging

  • 8. 
    Multiple Choice What is the main goal of an AEC system?
    • A. 

      To eliminate any trace of the far-end caller’s voice from returning to them

    • B. 

      To prevent the reflections of the far-end caller’s voice from re-entering the near-end microphone

    • C. 

      To amplify the near-end caller’s voice to drown out the sound of any far-end caller’s echoes

  • 9. 
    Check BoxesWhich of the following are processes that are a part of the AEC signal path? Check all that apply.
    • A. 

      Adaptive Algorithm

    • B. 

      Adaptive Filter

    • C. 

      Non-Linear Processing

  • 10. 
    Multiple Choice What is the Room Impulse Response?
    • A. 

      A recording of a sharp noise broadcast from the loudspeaker to map its reflections throughout the room

    • B. 

      A digital process in the AEC component that reacts to the changing environment of the near-end room

    • C. 

      The term for the remaining audio in the AEC signal path after all echoes have been subtracted

  • 11. 
    Multiple ChoiceWhat are the best conditions for the Adaptive Algorithm to do its job?
    • A. 

      When the far-end is speaking and the near-end is silent

    • B. 

      When the far-end is silent and the near-end is speaking

    • C. 

      When both the far-end and the near-end are silent

    • D. 

      When both the far-end and the near-end are speaking

  • 12. 
    Multiple ChoiceWhat does the Double-Talk Detector do?
    • A. 

      Detects when each side is speaking and activates or deactivates the Adaptive Algorithm accordingly

    • B. 

      Detects if two people in the near end are speaking at the same time and delays one after the other

    • C. 

      Listens for a repetition of the same noises to determine if an echo is still present in the signal

  • 13. 
    Multiple ChoiceWhat does the Non-Linear Processor do?
    • A. 

      Analyzes the audio for any residual echoes and attenuates the appropriate sections

    • B. 

      Removes random portions of the audio signal from the line entirely to conduct more time-consuming analysis

    • C. 

      Constantly optimizes the amount of computer processing power that must be allocated to the AEC component

  • 14. 
    Multiple Choice What does Noise Reduction do?
    • A. 

      Listens for steady sustained ambient noise and eliminates it

    • B. 

      Attenuates all acoustic reflections and amplifies the near-end caller’s voice

  • 15. 
    Multiple Choice What does the Comfort Noise do?
    • A. 

      Adds a small amount of artificial noise that helps indicate that the phone connection is still active

    • B. 

      Lets the user select from a variety of relaxing soundscapes to add to the background of the audio

    • C. 

      Automatically inserts a short period of silence between the far-end caller’s sentences to allow the near end time to think

  • 16. 
    Multiple ChoiceWhat does the Echo Return Loss Enhancement meter represent?
    • A. 

      The amount, in decibels, that the far-end caller’s echoes have been successfully attenuated

    • B. 

      The amount, in percentage, of far-end caller signal still present in the return signal path

    • C. 

      The amount, in milliseconds, that the entire phone call has been delayed due to signal processing

  • 17. 
    True or FalseThe AEC component is part of the Q-SYS Designer software for no additional cost, and does not require any additional hardware.
    • A. 

      True

    • B. 

      False

  • 18. 
    Multiple Choice What does VoIP stand for?
    • A. 

      Voice over Internet Protocol

    • B. 

      Virtual or Internet Phone

    • C. 

      Video on Internet Paradigm

  • 19. 
    Multiple ChoiceHow do you add a Softphone to your design?
    • A. 

      Click the Plus Icon in the Inventory section, and under “Streaming I/O", click the component.

    • B. 

      Drag the component from Audio Component in the Right Side Pane

    • C. 

      Drag the component from Control Components in the Right Side Pane

  • 20. 
    Multiple ChoiceWhere do you select the proper network (ie. LAN A, LAN B, AUX A, AUX B) for your Softphone components?
    • A. 

      In Q-SYS Administrator after loading your design to the Core (or Emulation Mode)

    • B. 

      In the Properties Panel of the Softphone

    • C. 

      In the Inventory Panel

  • 21. 
    True or FalseYou must load your Softphone settings, such as User Name, Proxy, Authentication ID, and Password, using Q-SYS Administrator.
    • A. 

      True

    • B. 

      False

  • 22. 
    Multiple ChoiceOn the Softphone component, what does DND stand for?
    • A. 

      Do Not Disturb

    • B. 

      Dungeons 'N Dragons

    • C. 

      Drop Node Distribution

  • 23. 
    True or FalseYou can have multiple Softphones in a single Q-SYS Design.
    • A. 

      True

    • B. 

      False

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