Technical Numeracy Flashcards
(17 cards)
How do you calculate the delay time in ms?
ms in a 1/4 note = (1000 / (bpm/60))
How many cents are in a tone?
200
How many cents are in a semitone?
100
What is the SPL of a signal?
Sound pressure level, how loud a sound is at a given point in space.
What is the difference between peak and RMS levels?
Peak is the maximum spikes in amplitude.
RMS average level of sound over a period of time.
How do you find the frequency of an octave higher?
Double the frequency.
How do you find the frequency of an octave lower?
Halve the frequency.
How do you find the frequency of a fifth lower?
Multiply by 0.75
How do you find the frequency of a fifth higher?
Multiply by 1.5
How many amplitudes can be read for a bit depth of 16?
2^16 (65536)
What is Hi-Z and Lo-Z?
High and low impedance (resistance).
How do you calculate the size of an audio file?
Time x No. channels x Sample rate x Bit depth = Size in bits
How many bits go into a byte?
8
How many bytes go into a KB?
1024
How many KB go into a MB?
1024
How many MB go into a GB?
1024
How do you find the nth harmonic of a frequency?
Multiply fundamental frequency by number of harmonic.
