Avixa, AV Design 1: Environment Exam Questions with Correct Solutions| Latest Update
Graded A+
Monocular Vision refers to the visual field that an individual eye can see, images do not
appear sharply, depth perception is lost, and color discrimination is weak. ref
Needed Acoustic Gain (NAG) The gain the sound system requires to achieve an equivalent
acoustic level at the farthest listener equal to what the nearest listener would hear without
sound reinforcement.
Native Resolution The number rows of horizontal and vertical pixels that create the picture.
The native resolution describes the actual resolution of the imaging device and not the
resolution of the delivery signal.
Needs Analysis Also referred to as the programming phase, consists of identifying the
activities that the end users need to perform, and then developing the functional descriptions
of the systems that support those needs.
NOM stands for "number of open microphones."
Ohm's Law defines the relationship between current, voltage, and resistance in an electrical
circuit as proportional to applied voltage and inversely proportional to resistance.
Optical Screen Material used in most permanent rear screen applications. This screen
system is made up of a series of lenses formed into the screen material. Most common is the
two-lens system.
Optotype A character used to assess a person's visual acuity. It looks like a block letter, and
is drawn with specific and rigid geometric rules. Snellen eye char. t
Potential Acoustic Gain (PAG) The potential gain that can be delivered by the sound system
without ringing and before feedback occurs. It is based upon the number of open microphones,
, and the distances between source(s) (like a presenter) and microphone(s), microphones to
loudspeakers, and listeners to loudspeakers.
Parallel Loudspeaker Circuit The positive output of the amplifier connects to every
loudspeaker's positive terminal, and each loudspeaker's negative terminal connects to the
amplifier's negative terminal.
Phantom Power A means of supplying direct current (DC) to a condenser microphone. The
amount of voltage depends upon the microphone.
Polar Plot A graphical representation of the relationship between a device's directionality
and its output.
Power Energy expended in one form manifests itself into another form - motion, heat, or
light. This is power, or the rate at which work is done.
Power Amplifier boosts the audio signal so that it has enough energy to move the
transducer within a loudspeaker
Preamplifier Amplifies a microphone level signal to line level for routing and processing.
Program Report A document that describes the client's specific needs, system purpose and
functionality, and the designer's best estimate of probable cost, in a non-technical format for
review and approval by the owner. Also known as the AV narrative
Rear Screen Projection A presentation system in which the image is projected through a
translucent screen toward the audience.
Reference Level The established starting point represented by 0 dB. The reference level
varies according to linear unit and application
Graded A+
Monocular Vision refers to the visual field that an individual eye can see, images do not
appear sharply, depth perception is lost, and color discrimination is weak. ref
Needed Acoustic Gain (NAG) The gain the sound system requires to achieve an equivalent
acoustic level at the farthest listener equal to what the nearest listener would hear without
sound reinforcement.
Native Resolution The number rows of horizontal and vertical pixels that create the picture.
The native resolution describes the actual resolution of the imaging device and not the
resolution of the delivery signal.
Needs Analysis Also referred to as the programming phase, consists of identifying the
activities that the end users need to perform, and then developing the functional descriptions
of the systems that support those needs.
NOM stands for "number of open microphones."
Ohm's Law defines the relationship between current, voltage, and resistance in an electrical
circuit as proportional to applied voltage and inversely proportional to resistance.
Optical Screen Material used in most permanent rear screen applications. This screen
system is made up of a series of lenses formed into the screen material. Most common is the
two-lens system.
Optotype A character used to assess a person's visual acuity. It looks like a block letter, and
is drawn with specific and rigid geometric rules. Snellen eye char. t
Potential Acoustic Gain (PAG) The potential gain that can be delivered by the sound system
without ringing and before feedback occurs. It is based upon the number of open microphones,
, and the distances between source(s) (like a presenter) and microphone(s), microphones to
loudspeakers, and listeners to loudspeakers.
Parallel Loudspeaker Circuit The positive output of the amplifier connects to every
loudspeaker's positive terminal, and each loudspeaker's negative terminal connects to the
amplifier's negative terminal.
Phantom Power A means of supplying direct current (DC) to a condenser microphone. The
amount of voltage depends upon the microphone.
Polar Plot A graphical representation of the relationship between a device's directionality
and its output.
Power Energy expended in one form manifests itself into another form - motion, heat, or
light. This is power, or the rate at which work is done.
Power Amplifier boosts the audio signal so that it has enough energy to move the
transducer within a loudspeaker
Preamplifier Amplifies a microphone level signal to line level for routing and processing.
Program Report A document that describes the client's specific needs, system purpose and
functionality, and the designer's best estimate of probable cost, in a non-technical format for
review and approval by the owner. Also known as the AV narrative
Rear Screen Projection A presentation system in which the image is projected through a
translucent screen toward the audience.
Reference Level The established starting point represented by 0 dB. The reference level
varies according to linear unit and application
