The Ear

• 3C10.10 - Model of the Human Ear
• 3C10.15 - Ear Drum Model
• 3C10.20 - Binaural Hearing
• 3C10.21 - Stethoscope

Pitch

• 3C20.05 - Infrasound
• 3C20.10 - Range of Hearing for the Human Ear
• 3C20.15 - Galton's Whistle
• 3C20.16 - Ultrasonic Waves - Suspended Rods , Ultrasound
• 3C20.17 - Quartz Oscillators - Quartz Tuning Forks & Watches
• 3C20.20 - Zip Strips
• 3C20.21 - Grooves on a Record - Model
• 3C20.23 - Grooves on a Record - LP
• 3C20.25 - Musical Pop Bottles
• 3C20.30 - Siren Disk - Seebeck Siren
• 3C20.35 - Sirens
• 3C20.40 - Savart's Wheel - Musical Saws
• 3C20.43 - Coin in a Balloon
• 3C20.60 - Increasing Pitch - Euler's Disk, Magnets & Glass Bottles, LIGO Ring Down

Intensity and Attenuation

• 3C30.20 - Decibels Meter & Speaker

Architectural Acoustics

• 3C40.10 - Concert Hall Acoustics

Wave Analysis and Synthesis

• 3C50.10 - Fourier Synthesis of Waves - Pasco
• 3C50.40 - Resonance - Electromagnetically Driven Strings
• 3C50.55 - Noise Generator and Filters
• 3C50.60 - 60 Cycle Hum - Electromagnetic Pickup
• 3C50.65 - Twisted Pair
• 3C50.75 - Noise and Measurements
• 3C50.80 - Spectrum Analysis

Music Perception and the Voice

• 3C55.25 - Missing Fundamental
• 3C55.30 - Heterodyne Wave
• 3C55.31 - Combination Tones
• 3C55.40 - Chords
• 3C55.51 - Musical Scales
• 3C55.65 - Tone Quality and Evaluating Musical Instruments
• 3C55.72 - Tuning Forks - Tone Quality
• 3C55.80 - Vocal Formants
• 3C55.84 - Polyphonic Overtone Singing
• 3C55.85 - Acoustical Filters - Stewart Filters
• 3C55.88 - Sound Sink-Sound Sucker
• 3C55.90 - Science of Sound - Tapes and Records