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recording because undesirable pops can occur when editing a file with a large DC offset. To remove
DC offset, a number of options are available ranging from applying a Low-Pass Filter to the
waveform to using correction features built into most Audio Editors such as Wavelab or Audition.
Dedicated DC Offset plug-ins in several formats such as VST and Direct X are also available.
DECIBEL (dB)
A unit of audio measurement of sound-pressure level (SPL), signal level, and changes or
differences in signal level. The decibel is a logarithmic (log) mathematical function that reduces
large numeric values into smaller, more manageable numbers. Decibel is calculated as being 10
times the log of the ratio of two powers and 20 times the log of the ratio of two voltages.
DESTRUCTIVE EDITING
When the audio data recorded on a hard disk is altered and rewritten to disk in such a way that it
can't be recovered in its original form
.
DIALOG
A window that is not full screen. In this host all Dialog boxes will be modal (meaning they will be
the foremost window and nothing else can be done until they are closed).
DYNAMIC MICROPHONE
A microphone that operates by electromagnetic induction to generate an output signal. When an
electrically conductive coil of wire or ribbon is made to cut across the flux lines of a magnetic field,
a current of specific magnitude and direction is generated within that coil or ribbon.
EFFECTS SEND
An auxiliary send feeding an effects device.
EQUALIZER
A frequency-dependent amplifier that enables a recording or mix engineer to control the relative
amplitude of various frequencies in the audible bandwidth. Put another way, the equalizer lets you
exercise tonal control over the harmonic content or timbre of a recorded sound.
EXPANDER
A device that increases the dynamic range of a signal.
FADER
A linear attenuation device or linear volume control.
FILE TYPES
•
WAVE
-
WAV (or WAVE)
, short for Waveform audio format, is a Microsoft and IBM audio
file format standard for storing audio on PCs. It is a variant of the RIFF bit stream format
method for storing data in "chunks", and thus also close to the IFF and the AIFF format used
on Macintosh computers. Both WAVs and AIFFs are compatible with Windows and Macintosh
operating systems. It takes into account some differences of the Intel CPU such as little-
endian byte order. The RIFF format acts as a "wrapper" for various audio compression
codecs. It is the main format used on Windows systems for raw audio.
•
MIDI
-
Musical Instrument Digital Interface
, or
MIDI
, is an industry-standard
electronic communications protocol that defines each musical note in an electronic musical
instrument such as a synthesizer, precisely and concisely, allowing electronic musical
instruments and computers to exchange data, or "talk", with each other. MIDI does not
transmit audio - it simply transmits digital information about a music performance.
•
MP3
-
MPEG-1 Audio Layer 3
, more commonly referred to as
MP3
, is a popular digital
audio encoding and lossy compression format, designed to greatly reduce the amount of
data required to represent audio, yet still sound like a faithful reproduction of the original
Open Labs MiKo LXD Production Station Manual
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