SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Digital Audio
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Measure of the amplitude of a longitudinal wave
Intensity
Redither
Sample Rate Effect on Anti-Aliasing
Average Bit Rate
2. When recording you want the smallest buffer available; When mixing you want the largest buffer available
Buffer Size
Internal Resolution
Bit Rate
Sawtooth Wave
3. Root Mean Square; Refers to taking the square root of all instantaneous amplitudes; Takes the average of those squares; (-6 Peak Level is approximately equal to -20 RMS)
Buffering
Pad Head & Tail
Signal- to- Noise Ratio
RMS
4. A time regulator that makes all samples and bits to align when working with interconnected digital devices; Basically a signal that all of the digital devices refer to when operating.
Word Clock
Compression
Compression
Decoder
5. Found that aliasing was always a problem no matter how fast you sample; Less data recorded but more accurate; 2 samples per wave length.
Codec
Harry Nyquist
RMS
CPU Buffering
6. Data reduction technique that does not effect quality of original audio; No effect on original quality; Typically around 50% reduction; Exact reconstruction of digital code for the audio signal
Lossless
D/A Conversion Signal Flow
Glass Master
Sonogram
7. High Pressure - Part of a longitudinal wave where the particles of the medium are close together
Direct Stream Digital
Amplitude Accuracy
Masking Analysis...
Compression
8. Very quiet digital amplifier that produces a series of output pulses with the audio signal coded the same as the width of the output pulses; Pulses are used to represent wave forms and are either on or off; Intense signals have long pulses with short
Harmonic Content
dBFS
TOSLINK
Class - D Amplifier
9. Process of building a complex tone by starting with the fundamental frequency and adding pure tone harmonics
Coaxial
Latency
Additive Synthesis...
AES3
10. 1st commercially successful AoE format for the transmission of digital audio - video - and control signals over 64- channel 100Mbps Ethernet networks
CobraNet
Effective Bit Depth
Recording Levels
D/A Conversion
11. Joint-Stereo Technique; Since the human brain is unable to localize sounds at high frequencies well sounds above 9 kHz threshold are encoded in mono
Sawtooth Wave
Redither
AES3
Intensity Stereo
12. Waveform of a pure tone showing simple harmonic motion
Bit Depth Effect on Dynamic Range
Direct Monitoring
DVD-5
Sine Wave
13. Very selective method of lowering buffer levels by halting different levels of audio processing
Compression
Low-Latency Monitoring
Noise Shaping
DVD-5
14. Rate at which energy is drawn from a source that produces a flow of electricity in a circuit; Expressed in volts
A/D Conversion
Voltage
Direct Monitoring
Morse Code
15. In order to play multiple channels at one time data is buffered as read to disk; Latency happens between play command & beginning of playback
AoE Formats
Sine Wave
Base 2 System
Playback Buffering
16. Channels are processed one at a time and the results are stored on multiple CPU buffers that alternately send data as DAW requests the data for playback; First few seconds are relayed to the buffer prior to processing and playback and it continuously
CPU Buffering
Zero-Latency Monitoring
Claude Shannon
Lossless Formats
17. Industry Standards: -6 dB Peak = -20 RMS Meter
Recording Levels
Algorithm
Coaxial
Equal Loudness Contour
18. Eight channel digital surround sound system by Dolby
Rarefaction
Normalizing
Dolby 7.1
Direct Monitoring
19. Branch of psychology concerned with the subjective perception of sound
Psychoacoustics
Optical Cable
DVD-14
Compression
20. 16-Bit; 44.1 kHz; PCM; Stereo
Logical Format
Interleaved
Requirements for CD Audio
Algorithm
21. Full Scale; Type of metering that measures level in digital recording system; Recording and Mixing levels should NEVER exceed 0dB FS in digital audio or clipping will occur
Optical Cable
Physical Disc Format
Interleaved
dB/FS
22. Specific set of instructions for carrying out a data reduction technique that determines how to 'save' binary data information efficiently
Algorithm
Fourier Series
Average Bit Rate
Headroom Bits
23. Twice as many samples as the highest frequency at minimum; Sampling rate totally controls frequency response
Codec
Sampling Rule
Fletcher- Munson Curve
6 dB
24. Father of modern information theory; Solidified the Nyquist Theory by adding the concept that bits per second (binary representation of audio signals) must be at equal intervals to accurately represent data
Claude Shannon
TOSLINK
Audio over Ethernet (AoE)
Pulse Density Modulation
25. Uses entropy coding as the basis; Computer data compression algorithm that packages files such as .ZIP & .RAR
dB/SPL
Data Packing
Intensity Stereo
Psychoacoustics
26. 8- in/8- out on one cable; 25- pin D- sub connector
Psychoacoustics
Intensity
Tascam Digital Interface Format (TDIF)
Audio over Ethernet (AoE)
27. Digital Word -> Series of Resistors (each with assigned charges) -> Sample- and-Hold Circuit -> Anti-Imaging Filter (Smoothing Filter) -> Reconstructed Sample
Pad Head & Tail
CPU Buffering
Amplitude Accuracy
D/A Conversion Signal Flow
28. Splits the input signal and mixes it with an analog copy so that no latency is present
TOSLINK
SCMS
Tascam Digital Interface Format (TDIF)
Zero-Latency Monitoring
29. Digital (binary) measurements of how long each pulse is either on or off; Width of increasing voltage or decreasing voltage is assigned a 1 or 0 respectively
D/A Conversion Signal Flow
Dolby 5.1
Pulse Width Modulation
Pulse Code Modulation
30. Data reduction technique that selectively removes original information in order to significantly reduce the file size; Some data is lost; Files can be reduced up to 99% in size (90% with no perceived sound quality loss); Bit rate effects the perceive
Footroom
A/D Conversion Signal Flow
Requirements for CD Audio
Lossy
31. Measures the highest levels of a signal being recorded or mixed; Monitors for clipping - which occurs at 0dBFS); Does not always reflect perceived volume of signal
Gain Staging
Peak Level
Footroom
CobraNet
32. CBR; Codecs encodes data at a constant rate regardless of density of the audio file
Floating Point
Constant Bit Rate
Codec
Playback Buffering
33. The number of compressions or rarefactions in one second; The higher the frequency the more compressions & rarefactions per second; Measured in Hertz
Frequency
Bit Depth Effect on Dynamic Range
Oversampling
Perceptual Coding
34. Lossless Format; Can hold up to 25GB on a single- layer disc and 50GB on a dual- layer disc
M-S Stereo
Logical Format
Pulse Width Modulation
Blu-Ray
35. Sony sigma- delta modulation based technology that bypasses the decimation and interpolation steps found in PCM converters
Compression
Direct Monitoring
Direct Stream Digital
Threshold of Pain
36. The ability of a digital system to perform complex DSP without running into problems with overflow or loss of resolution
A/D Conversion
AES3
Lossless Formats
Internal Resolution
37. Serial Copy Management System; main difference between AES3 & S/PIDF
Joseph Fourier
Significand
EtherSound
SCMS
38. Six channel (five speakers and one subwoofer for bass) digital surround sound system by Dolby
Dolby 5.1
Spectrum Multiplication
Threshold of Pain
Nyquist Frequency
39. Softest sound that can be heard by the average human ear (0 dB)
Conversion Buffering
Threshold of Hearing
Headroom Bits
Internal Resolution
40. 1.) Taking a series of evenly- spaced measurements 2.) Signal contains no frequency components higher than half the sample rate
Nanometer
Requirements for A/D Conversion
Impulse Response
Pulse Density Modulation
41. Removes high frequency images and noise and smoothes the stair case output coming from of the sample and hold circuit; Also called a SMOOTHING FILTER
Square Wave
Anti-Imaging Filter
Inter-Channel Redundancy
Logical Format
42. Leaving space at beginning and ending of song for data crunching during mastering; Last step in mastering process
Pad Head & Tail
Additive Synthesis...
I/O Connection Buffering
Square Wave
43. (AES/EBU); 110O - 2- channel balanced digital audio cable with an XLR connection; NOT a mic cable!!
AES3
DVD-18
SCMS
M-S Stereo
44. Stores only one copy of a stereo signal and assigns it to both channels in order to save 50% of original bandwidth
Sample- and-Hold
2 Dimensions of Sound
Anti-Aliasing Filter
Inter-Channel Redundancy
45. Inner ear component that attaches to the stapes and helps to decrease the amplitude of vibrations; Causes the masking phenomenon
Lossy Formats
AoE Formats
Stapedes Reflex
Noise Shaping
46. 'Capturing' part of digital audio; Never captures a signal perfectly
Bit Depth Effect on Dynamic Range
Perceptual Coding
A/D Conversion
Subbands
47. Computer program or device capable of encoding and/or decoding a digital data stream with the end result being a reduced file size
Peak Level
Quantizer
Codec
Internal Resolution
48. Increases or decreases the digital signal so that the loudest sample is brought up to 0dBfs; Uses all bits from dynamic range and makes it even from track to track
Normalizing
A/D Conversion
Sample- and-Hold
Audio over Ethernet (AoE)
49. Allows for an internal sample rate at multiples of the input and output rates; Alleviates the need for steep 'brickwall' filters; Often combined with internal '1- bit' processing; Increases smoothing effect
Base 2 System
Audio over Ethernet (AoE)
Sine Wave
Oversampling
50. Low Pressure; Part in a longitudinal wave where the particles are spread apart
Interpolation Filter
Lossy Formats
Rarefaction
CPU Buffering
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests