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Explanation of terms
B
Bit rate
This is the amount of or audio data recorded on a disc that is read in
one second.
D
Dynamic range
The difference between the maximum, undistorted sound level and
the minimum sound level that is discernible above the noise emitted
by the device.
F
Finalizing
This process enables CD recorded with a recorder to be played by
other players.
L
Linear PCM
This is an uncompressed PCM (Pulse Code Modulation) signal. This is
the same system as the CD audio.
M
MP3 (MPEG Audio Layer-3)
This is an internationally standardized audio data compression scheme,
using the “MPEG-1” video compression standard. It compresses the
data volume to about one eleventh its original size while maintaining
sound quality equivalent to a music CD.
S
Sampling frequency
Sampling involves taking a reading of a sound wave (analog signal)
at regular intervals and expressing the height of the wave at each
reading in digitized format (producing a digital signal).
The number of readings taken in one second is called the “sampling
frequency”. The larger the value, the closer the reproduced sound is
to the original.
Oper
ations
Inf
or
mation
Inf
or
mation
Pr
epar
ations
CD
