Intro to Audio Engineering questions
with right answers.
Frequency ANS - How many cycles per second (cps)
Amplitude ANS - The strength of the signal
Wavelength (definition) ANS - Length of one complete cycle
Wavelength (math) ANS - Speed of sound divided by frequency
Speed of sound in feet per second ANS - 1,100
Pure tone/sine wave ANS - Simplest type of sound made of only one frequency
Hertz ANS - Describes frequency
To have sound, you need what? ANS - motion and a medium
Healthy ears can hear what range of frequencies? ANS - 20 Hz - 20,000 Hz
Defraction ANS - Bending of a wave form around an object
For a barrier to reflect a sound it must be how long? ANS - Larger than half the wavelength
Complex Tone/Sound ANS - Sound with more than one frequency
, Harmonic Series ANS - Multiples of the fundamental pitch that happen naturally in strings and columns
of air
Timbre ANS - Refers to the characteristic sound of something created by the relative balance of
harmonics
Octave ANS - Doubling of a frequency
White Noise ANS - Equal energy at all frequencies
Pink Noise ANS - Equal Energy per octave
Reverse Polarity ANS - When the positive signals have been turned negative
Out of Phase ANS - A sound wave is offset
Transducer ANS - Turns one kind of energy into another kind of energy
Decibel (equation) ANS - D= 10log(Pm/Pr)
Threshold of Hearing ANS - The quietest sound we can hear. 0 dB
Threshold of Pain ANS - Loudest sound a person wants to hear. 130 dB
What are the two reasons we use the Decibel? ANS - The range of human hearing is enormous and our
response to loudness is logarithmic
What is ratio between the loudest sound we can hear and the quietest sound we can hear? ANS - 10
trillion to 1
with right answers.
Frequency ANS - How many cycles per second (cps)
Amplitude ANS - The strength of the signal
Wavelength (definition) ANS - Length of one complete cycle
Wavelength (math) ANS - Speed of sound divided by frequency
Speed of sound in feet per second ANS - 1,100
Pure tone/sine wave ANS - Simplest type of sound made of only one frequency
Hertz ANS - Describes frequency
To have sound, you need what? ANS - motion and a medium
Healthy ears can hear what range of frequencies? ANS - 20 Hz - 20,000 Hz
Defraction ANS - Bending of a wave form around an object
For a barrier to reflect a sound it must be how long? ANS - Larger than half the wavelength
Complex Tone/Sound ANS - Sound with more than one frequency
, Harmonic Series ANS - Multiples of the fundamental pitch that happen naturally in strings and columns
of air
Timbre ANS - Refers to the characteristic sound of something created by the relative balance of
harmonics
Octave ANS - Doubling of a frequency
White Noise ANS - Equal energy at all frequencies
Pink Noise ANS - Equal Energy per octave
Reverse Polarity ANS - When the positive signals have been turned negative
Out of Phase ANS - A sound wave is offset
Transducer ANS - Turns one kind of energy into another kind of energy
Decibel (equation) ANS - D= 10log(Pm/Pr)
Threshold of Hearing ANS - The quietest sound we can hear. 0 dB
Threshold of Pain ANS - Loudest sound a person wants to hear. 130 dB
What are the two reasons we use the Decibel? ANS - The range of human hearing is enormous and our
response to loudness is logarithmic
What is ratio between the loudest sound we can hear and the quietest sound we can hear? ANS - 10
trillion to 1
