Stereo:
Sound that is directed through two or more speakers so that it seems to surround the listener and to come from more than one source; stereophonic sound.
Channel:
An electric circuit that acts as a path for a signal - an audio channel
Track:
A section of a record, compact disc, or cassette tape containing one song or piece of music
Frequency:
The rate at which something occurs or is repeated over a particular period of time or in a given sample
Hertz:
the unit of frequency; one hertz has a periodic interval of one second
Decibel:
A unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale
Wav:
WAVE or WAV, short for Waveform Audio File Format, (rarely also named Audio for Windows) is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs
mp3:
MP3 is an audio file format, based on MPEG (Moving Picture Expert Group) technology. It creates very small files suitable for streaming or downloading over the Internet.
aiff:
Audio Interchange File Format (AIFF) is an audio file format standard used for storing sound data for personal computers and other electronic audio devices
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