the process of removing imperfections from sound recordings is…
audio restoration
a dynamics processor that is a compressor with a high ratio and generally fast attack time is a or an…
the dynamics process that expands the dynamics range is called a or an
to reduce imperfections in sound recording know as noise you should use
eq and or dynamics
a dynamics processor that makes the loud parts of a sound recording sound softer and the quiet parts sound louder or squashes the dynamic range is call a or an…
a negative side of compression is that it… because the signal-to-noise or signal-to-quantization error ratio is lower at smaller amplitudes and the compressor raises those levels of ampltude
raises the noise floor
the four usual controls of a compressor are…
gain, threshold, ratio, and attack/release
this control of a dynamics compressor amplifies a signal before the compander kicks in is…
this control of a compressor defines the extent to which the compander compresses or expands the signal after the input signal has exceeded the specified amplitude threshold is…
the point at which the compression kicks in according to the ratio is called the…
this control of a dynamics compressor determines how quickly the companding ratio is applied or released once the input signal passes the threshold
attack/release (setting these numbers too low can make a compander sound artificial)
a compressor set with a ratio of 10:1 or more is called a… because it severely limits the maximum possible output amplitude
once a compressor is left to a ratio of 1:10 or less it is called a… because it gates out low-amplitude signals
two reasons tonal balance by subtracting frequencies rather than boosting them is good are…
1. Keeps the noise floor lower
2. More likely to correct destructive interference between frequencies.
frequency selective amplifiers are…
the four types of EQs are…
1. Low-pass (High-cut)
2. Band-pass
3. Band-reject (notch)
4. High-pass(Low-cut)
this type of EQ filter attempts to let low frequencies through while attenuating high frequencies.
low-pass filter/high-cut
these types of EQ filters selectively cut or pass only a specified frequency band
band-reject (notch) and band-pass
this type of EQ filter allows high frequencies to pass while attenuating low frequencies
what are the type types of EQ configurations?
Parametric and Graphical
this type of EQ configuration allows control over the precise frequency you wish to change (the center frequency) and the selectivity of the filter to the surrounding frequencies on either side of the center
Parametric Equalizer
the frequency range where the response is of the filter within 3dB or 50 percent of the peak level, this also determines how broad or wide a parametric filter shape will be
the amount of frequency selectivity or resonance is also called…
larger values of Q indicates a ________ filter shape while a smaller value of Q indicates a _____________ filter shape
broader, narrower
this type of EQ configuration provides a single attenuation or gain slider or know for a fixed set of frequencies
Graphic Equalization
this parameter of EQ is the amount of boost or cut in amplitude applied to the original sound expressed in dBs
gain (EQ)
for a parametric EQ frequency is…
the point of maximum amplitude change
the range of frequencies effected by the EQ are
bandwidth and Q
these EQ parameters are the inverse of one another
Ex. is one is 2 the other is 1/2 and is expressed in octaves
bandwidth and Q
the EQ parameter that determines the rate that the sound goes from the effected portion to the non-effected portion and is expressed in dB/octave
this type of EQ control effects a broad range of frequencies evenly and the only controls are gain and frequency
the process of restoring magnetic tape recordings
take baking
the process of re-recording the original dialogue after filming for the purpose of obtaining a cleaner, more intelligible track
ADR – Audio Dialogue Replacement
describes the process of live recording of sound effects that are created an artist added in post production to enhance the quality of audio for films
when you pay attention to the loud parts of a pictures audio and edit according to those portions of the picture
functions by taking stereo sound and changing the left and right channels into a sum and difference signal
this reproduction requires two or more channels of recorded material
the first home listener music system that allowed surround sound at home
this uses 4 speakers each 90 degrees apart from one another
this is a medium that allowed tv and gaming mediums to accommodate 4 channels of audio by panning two
the four channels of ProLogic are…
left center right and one behind the speaker
this method of recording has 6 channels of audio with one that only carries the low frequencies
5.1 Surround
the 6 channels of 5.1 Surround sound are…
left surround
right surround
low frequency extension
this mixing technique school believes this mixing technique is merely stereo with extra speakers that can be used in any manner desired without rules
surround mixing
this mixing technique school believer the reproduction should sound as if the listener were present during the time of recording
surround mixing
the file formats os surround sound are…
quicktime and windows media
surround sound is delivered in music through two types of speaker set-ups which are…
DTS and Dolby Digital
surround sound delivered in movies through DTS speaker setup have…
5 speakers with the LFE speaker set to 80Hz and below
music delivered through DOlby Digital speakers for surround sound in movies has…
5 speakers with the LFE set to 120Hz and below
these file container are exclusive to audio
an audio file container widely used on Mac OS platform
an audio file container widely used on Windows platform
an audio file container that is an extensible music format
name the two file containers that are exclusive to still images
this still image file container is a wrapper file format for still images, raw data, and associated metadata
this still image file container is a wrapper file format for still images and associated metadata
TIFF (Tagged Image File Format)
the process of approximating a continuous range of values by a relatively-small set of discrete symbols or integer values
the use of computer hard or software to detect the beat of a musical storage
beat detection
the process of changing the speed or duration of an audio signal without affecting its pitch
time stretching
the process of changing the pitch of an audio signal without affecting the speed
pitch scaling or pitch shifting
the amount by which the signal-handling capabilities of an audio system exceed a designated level known as (PML) – permitted maximum level
describes the number of bits recorded for each sample
bit depth
the bit depth for CD audio is…
the bit depth for DVD audio is
when mixing engineers use personal computers to mix music
the manipulation of sequences of numbers that represent meaningful, information-bearing data.
Digital Signal Processing (DSP)
digital signal processing is used for
reverb in the studio
the representation of signals by a sequence or numbers or symbols and the processing of these signals
measures, filters, and or compresses real-world analog signals