sound 1 - microphones
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Sound
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Picture vs. Sound
Unless you are making a
silent picture, Soundis more
important than picture.
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Picture vs. Sound
How long would you watch a
movie, TV show with bad orno audio?
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Picture vs. Sound
Have you ever listened to a
show while doing something
else and still enoyed it?
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What is sound
Sound is the vibration o! air molecules
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S"U#$
Sound travels in waves
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S"U#$
Sound travels in waves
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%&V'S( )ength
Wavelength:The
distance between
any pointon a
wave and the
equivalentpointon
the ne*t phase.
)iterally, the length
o! the wave.
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%&V'S( &mplitude
Amplitude:The strengtho! a wave signal. The+height+ o! a wave.
Higher amplitudes higher volumethat-s why we call a
device which increasesamplitude, an +ampli!ier+
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%&V'S( re/uency
Frequency:The
number o! times the
wavelength occurs in
one second 0in kilohert123h14, or cycles per
second5.
re/uency is how closetogether the waves are.
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%&V'S( re/uency
re/uencies are
interpreted as a pitch.
Higher !re/uencies ahigher pitch.e.g. a high6pitched
voice !orces your vocalchords to vibrate/uickly.
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#'7T
8icrophone types
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Types o!
8icrophones
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8icrophones
8icrophonesare a type o!
transducer6 a device whichconverts energy !rom one !orm
to another.
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8icrophones
8icrophones convert acoustical energy
0sound waves5 into electrical energy0the
audio signal5.
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Types of Microphones
9 $ynamic: Per!ormance;Podium Handheld mic
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$ynamic vs.
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$ynamic vs.
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$ynamic vs.
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$#&8@