Sound
The loudness of sound is stated in terms of
What is Sound Pressure Level
Cardoid microphones pick up sound coming primarily from
What is the Front
Evidence indicating that an amplifier is introducing harmonic distortion includes the presence of
What are Popping Sounds
Speaker systems for Speech Reinforcement are optimized in the range of
200Hz to 8kHz
Having a larger number of speakers connected to an amplifier makes it difficult to meet
What are Power Requirements
A device that increases the power of an audio signal
What is an Amplifier
Contact microphones are designed to pick up vibrations from
What are solid materials
When an array of speakers lacks a uniform response, it results in
What is Comb Filtering
Another way of saying that loudspeakers have been suspended is to say they are
What is Flying
For audio applications, an amplifier increases the
What is Power of a Signal
Inputs to an audio system are first converted to
What are Electrical Signals
Pressure-response microphones are
What is Omni-directional
RFI and EMI problems are often dealt with by
What is Isolation
Speakers and Microphones are both types of these
What are Transducers
Activity that MUST occur before installation of the sound system can occur
What is Site Acceptance testing
The type of audio intended for passive listening is called
What is background Music
All microphones have a generating element and a
What is a Diaphragm
Some Condenser Microphones need to have this provided to them from the mixing board or other source
What is 48VDC of Phantom Power
A frequency-dividing network that separates frequencies at their roll-off points, directing to the correct driver
What is a Crossover
During the commissioning phase, System performance standards are determined by
Who is the Customer and Design team
The log of 1,000 is
What is 3
The ratio between the power of an input signal and an output signal is known as
What is Gain
An unwanted effect that occurs when the peaks of an audio signal are cut off
What is Clipping
If a speaker is in the 20Hz - 500Hz range it would be what type of speaker
What is a Low-Range speaker or Subwoofer
During commissioning, once the customer provides sign-off, the next step is to verify agreements related to
What is Maintenance