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

    9

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    $ynamic vs.

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    $ynamic vs.

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    $ynamic vs.

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    $#&8@