representing sound Flashcards
sound
analogue signal-constantly changing- needs to be converted into binary
what is used to capture sound
microphone
adc
analogue digital conversation
why is adc needed
it will sample a sound wave at regular time intervals
how does data get lost
time samples
sound sampling?
when we record at set time intervals
measured in hz
sample rate
quantity of samples takes per sec
m in hz
by making the sample rate higher
then digital representation of wave becomes stronger resemblance to the original.
demand more storage space, more cpu time, lot of processing power
bit depth
number of bits that is allocated per sample take
increasing bit depth=
increase in quality
bit rate=
number of bits required to store 1 second of sounf
equation
bit depth,sample rate,bit rate
bit depth x sample rate= bit rate
high bit depth=
high quality sound