Sound Technology Quiz 1

What are 5 characteristics of Waveform

Amplitude, frequency, velocity wavelength, and phase

characteristics of amplitude

distance above or below the centerline of a waveform (measures intensity of waves

characteristics of frequency

the rate that an acoustic generator, electrical signal, or vibrating mass repeats within a cycle of positive and negative amplitude ( measures how many cycles happen over a time period)

characteristics of wavelength

distance in a medium in between the beginning, middle, and end of a cycle and wavelength = velocity/frequency

difference is between wavelength and waveform

a waveform is a graphic representation of sound voltage/level as it moves over time, whereas wavelength is the measures the length of a cycle withing a waveform

what does "phase out" mean

there is a difference of 180 degrees between 2 waves

phase shift meaning

the lead or lag of one waveform in relation to another waveform

difference between amplitude and frequency

amplitude measures the intensity of a wave in a cycle, whereas frequency measures the rate of a cycle over a time period. Frequency influences pitch while amplitude influence volume

why is phasing important

the boosts and cancellations that phasing creates influences the signal's frequency response, which impacts what is heard/picked up

speed of light

the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meter/second

what is the speed of sound at standard temperature and pressure

331.5 meters/second at 0 degrees centigrade and 1.013*10^5 newtons per meter^2