Technical Numeracy

Question 1

What does a waveform graph show

Answer 1

Shows us how the displacement changes over time, between its maximum positive and maximum negative values and around a zero line

Question 2

What is a logarithmic scale

Answer 2

• Is used to represent orders of magnitude as a linear change
• the Decibel scale and the frequency values on a filter of EQ graph are examples of logarithmic scales

Question 3

What is RMS

Answer 3

• Stands for root mean square, an average measure of loudness
• this is much slower analysis than peak and is useful if you are looking for the average volume of something

Question 4

What is the equation of frequency

Answer 4

1/ period

Question 5

What is the equation of period

Answer 5

1/ frequency

Question 6

What does an octave higher and lower do to the frequency

Answer 6

• an octave lower is always half the frequency of the original
• an octave higher is always double the frequency of the original

Question 7

What is the equation of the harmonic frequency

Answer 7

Fundamental frequency x number of harmonics

Question 8

How do you calculate delay time

Answer 8

60s / crotched beater per minute