Acoustics Acoustics Amplitude Amplitude Decibel Decibel Ear Ear Hearing Hearing High Fidelity High Fidelity Microphone Microphone Monaural Monaural Music Music Noise Noise Note Note Perception Perception Percussion Instrument Percussion Instrument Pure Tone Pure Tone Silence Silence Sonic Boom Sonic Boom Stridulation Stridulation Supersonic Supersonic Vibrato Vibrato