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In audio, the number of repeating cycles of change in air pressure or oscillations in voltage, that occur in one unit of time usually a second. Complex sounds are made up of many pure tones of different frequencies. Measured in units originally called cycles per second (CPS), now called Hertz (Hz). For convenience, the human frequency range is divided into three rough areas or bands. High frequencies (between about 5 kHz and 20 kHz), mid frequencies (between about 200 Hz and 5 kHz) and low frequencies (between about 20 Hz and 200 Hz). |
Audio & MIDI Books 
Stock your studio library with an awesome selection of books pertaining to audio production and learning how to use MIDI. A good library in your studio is essential if you want to learn the best production techniques and get the most out of your studio gear. Learn everything from studio construction and soundproofing to setting up a killer MIDI studio utilizing the latest in digital technology. All the books listed in this article are available from Amazon.com.
