| Classroom — 2.00 USD SVT, Sound Effects, Atmosphere/Environments |
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| Class room — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, atm, sound of children on yard — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, break, high school — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, break, teens — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, browsing paper, movement, etc — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, children rising, teacher says "good... — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, coughs, movement — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Classroom, door knock, door opens, closes — 2.00 USD SVT, Sound Effects, Atmosphere/Environments |
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| Class room, girls giggle, quiet, single giggle — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, hum, students, jr high — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, hum, teachers voice in the beginning — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, jr high, hum, lecture — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, jr level, hum — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, jr level, pupils picking up books — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, lecture, jr level, hum — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, loud humming, some teacher voice — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, quiet — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, steps, teacher, giggle — 2.00 USD SVT, Sound Effects, Industry/Office |
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| Class room, teacher, movement — 2.00 USD SVT, Sound Effects, Industry/Office |
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