Sound Waves, Vibrations that travel through air or another medium and can be heard when they reach the ear., Wave, A representation of sound energy traveling through a medium. It shows variations in air pressure over time., Frequency, The number of sound wave cycles per second, measured in Hertz (Hz)., Amplitude, The height of the sound wave, representing the loudness or volume. Greater amplitude produces louder sounds., Waveform Audio File Format (.wav), Uncompressed format developed by Microsoft and IBM, MPEG Audio Layer 3 (.mp3), Compressed format developed by the Moving Picture Experts Group (MPEG), Audio, Sound that is within the range of human hearing, typically between 20 Hz and 20,000 Hz, Sampling Rate, The number of samples of audio carried per second, measured in Hertz (Hz). Common rates include 44.1 kHz and 48 kHz.

Chapter 3

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