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Take a 25 question quiz to test and certify your knowledge of the tutorial-video course
Audio Concepts 202 - Mastering In The Box.
Get a mark of 80% or higher to pass this quiz!
1
ISRC:
refers to embedded (text) metadata in audio masters, that's used for tracking distribution and sale
is a new proposed file format for the highest-quality masters, using 64 bps MP3 format for maximum clarity
is the organization that sets the standard for how much Limiting can be applied in modern mastering
None of the other answers are correct
2
In a Mastering session, "Reference tracks" would be:
several of the loudest-mastered songs you can find, to make sure all your masters are also the loudest
All other answers are incorrect
several high-quality commercially-released songs, mastered by top pros, for use as a reality check
a collection of poorly-mastered songs, to remind you what not to do
3
Good-quality Masters can be achieved with:
only digital Mastering processors
both analog and digital Mastering processors
only analog Mastering processors
4
Which of the following would be an appropriate part of Pre-Mastering?
Preparing vocal-up & vocal-down versions, and stems
Adding Dither to the 24-bit pre-mastered mix file
Maximizing the level of the mix as loud as possible
All answers are correct
5
When applying Brickwall Limiting to raise the level of a track:
the output ceiling should be set at around -3 dBfs or so to avoid any peaks
the output ceiling should be set just a little below maximum digital ceiling (0 dBfs), at around -0.3 dBfs or so
the output ceiling should be set at exactly 0 dBfs or, if possible, just a little higher, for maximum effect
the output ceiling should be turned off, and any peaks should be removed by editing wth Pencil tool
6
A "Matching" EQ:
analyzes two audio files (mixes), and applies a difference curve to one, to match the tonal balance of the other
is a specialty EQ that analyzes the audio, and automatically applies the correct ampunt of EQ for the musical genre
guarantees a perfect tonal match between songs if you apply the exact same curves to all songs
automatically adds the right amount of bass and treble energy ("smile" curve) for the musical genre you specifiy
7
Brickwall Limiting:
is designed to keep the mix from being raised in volume too much, by applying an AI algorithm
removes frequencies above 20 kHz and below 20 Hz, to remove any problematic supersonic and subsonic elements
was originally designed to prevent digital overs (clipping), but is now also used to "maximize" level
8
In a typical un-processed musical wave:
None of the other answers are correct
there are no Transient peaks-these are an artifact of the mastering processing, and must be removed at the end
the difference between momentary Transient Peak levels and Average levels can be as much as 15-20 dB
all wave heights are identical in a good performance-this level consistency is the hallmark of great performances
9
Dither:
only needs to be applied to 24-bit master files, for modern production standards
only needs to be applied to 16-bit master files (as for CD Duplication masters)
All answers are correct
always must be applied all all bounces, at any resolution, up to 32-bit
10
M-S (Mid-Side) processing:
can only be applied of it's built in to a plug-in, as a feature-you can't set it up yourself in the mixer
None of the other answers are correct
can allow you to independently apply EQ or compression to the Center and Sides of the mix
is a simulation of what the mastered mix will sound like when heard from positions off to the side of the speakers
11
The three most basic tools of Mastering are:
Compression, Delay, Limiter
EQ, Pitch Correction (Auto-tuning), and Time-Shifting
EQ, Compression, and (Brickwall) Limiting
Loudness Maximizer, Loudness Maximizer, and Loudness Maximizer
12
Inter-Sample peaks:
are distortions that creep into the mastered file when you take a break and someone changes the settings on the Limiter
can never be predicited or anticipated-you can never know for sure how many there are, or how severe they might be
All answers are correct
are an artifact of D->A conversion, and can cause slight overages, of often half a dB or so, above the digital maximum
13
What is the Nyquist Theory?
A minimum Sampling Rate via digital recording must be twice the highest recorded audio frequency
A minimum Sampling Rate via digital recording must be half the highest recorded audio frequency
14
In the heyday of the analog (pre-digital) era, a big part of Mastering was:
All other answers are incorrect
squeezing audio into the more limited dynamic range of vinyl
keeping audio levels below 0 dBfs
adding ISRC codes to the finished recordings
15
A Multiband compressor:
None of the other answers are correct
must always have the same settings in all bands, or else there will be "pumping" and "breathing" artifacts
divides the frequency range, but has only one set of controls that affects all frequency bands the same
may have different settings in the different bands, for the most appropriate compression at different frequencies
16
Which would be the best strategy for a Mastering session with several songs for a collection/album?
having a single chain of mastering processors inserted in the stereo output channel, affecting all songs
having a separate chain of mastering processors on each track, for each individual song
All other answers are incorrect
never mastering more than one song, per session, at a time, even for an album
17
The process of assigning Binary numbers to describe sample levels is called:
Sample rate resolution
Quantization
Bit Rate assigning
Binarization
18
A Multiband compressor:
is a compressor that must be used on all songs being mastered for a collection, to insure compatibility
is typically 3 or 4 compressors in one, each applying compression independently to a different frequency band
is a compressor designed to work equally well on bands in many very different-sounding musical genres
None of the other answers are correct
19
A "linear-phase" EQ:
has the same amount of phase shift in every instance, so all EQ'd songs are phase-shifted consistently
is technically no differents from a standard "minimum-phase" EQ-it's purely marketing hype
is a specialty EQ that analyzes the audio, and automatically applies the correct ampunt of EQ for the musical genre
has none of the phase shift common to normal ("minimum-phase") EQs, for more transparent sound
20
Which of the following is an advantage of bringing a mix to a dedicated Mastering engineer?
He'll hear the song with fresh ears, and be more likely to pick up on subtle issues & problems
All answers are correct
He's likely to be working out of an acoustically treated room with calibrated monitors
He'll be more experienced with the kinds of problems that need to be addressed in Mastering
21
Ratios for compression (especially Multiband compression) in Mastering:
are more typically on the high side-around 6:1 or higher
are more typically on the low side-around 2:1 or lower
are always set to 10:1 to insure that the audio is loud without any peaks
are always set to 1:1, to insure the most transparent quality
22
The Nyquist theory says that the minimum sample rate for digital recording must be twice the lowest audio frequency to be recorded. True or false?
False
True
23
__________ refers to the number of bits used for the Binary Number that describe the Amplitude levels of the Audio Samples.
Dynamic range
Dithering
Sample Rate
Bit Resolution
24
Decent Mastering results can never be achieved by anyone outside a high-end commercial Mastering room. True or false?
True
False
25
What is the highest-quality audio spec for modern Masters?
16-bit WAV
24-bit WAV
24-bit MP3
24-bit MP4/AAC
Audio Concepts 202
Mastering In The Box
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