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Greenberg Notes 1
Audio Tech 1
54
Other
Undergraduate 1
01/12/2012

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Term
What is signal?
Definition
Sound in electrical form.
Term
What is noise?
Definition
Unwanted sound/noise.
Term
What is Signal to Noise Ratio?
Definition
How much wanted and unwanted noise.
Term
List 6 aspects of a project studio.
Definition
1. DAW
2. Cost effective
3. Compromised acoustics
4. Medium grade equipment
5. Bedroom, garage, closet
6. Owned by artist, producer, musician
Term
What is Standing Waves?
Definition
Sound crashing into each other due to parallel surface.
(*Clap* Kakakakakaka [Fast])
Term
What are two main areas of a recording studio?
Definition
Recording booth & control booth
Term
Name three stages of production.
Definition
1. Pre Production (Everything before recording e.g. setting up.)
2. Production (Recording)
3. Post Production (Fixing and adjusting recording)
Term
What is overdubbing?
Definition
Listening back to something already recorded while recording along with it
Term
List two stages of music post production.
Definition
1. Mixing (Adjusting levels, spectral positioning, etc.)
2. Mastering (Takes stereo file, adds signal processor, adjusts whole track)
Term
What is a signal processor?
Definition
Changes or modifies a signal (compression, reverb, equalization).
Term
What is a transducer?
Definition
Changes one form of energy into another (mechanical vibration -> electrical impulses).
Term
Who is Nikola Tesla?
Definition
Hoover Dam (Edison stole shit from him. He only made direct current power).
Term
Microphone is a double transducer.
Sound > Mechanical Vibration (at diaphragm) > Electricity
Definition
Just so you should know.
Term
What is concave?
What is convex?
Definition
Concave - Collects sound.
Convex - Scatters sound.
Term
What are the stages of the human ear?
Definition
[Hammer, Anvil, Stirrup] > Cochleae > Cilia (Hairs) > Auditory Nerves (Impulses)
Term
What is sound caused by? What does it do?
Definition
Sound is caused by vibration, displaces air molecules.
Term
The greater the vibrational disturbance, the bigger the wave.
Definition
Yupps.
Term
What is acoustics?
What is psychoacoustics?
Definition
Acoustics - The scientific study of behavior of sound waves.
Psychoacoustics - The study of human perception of sound.
Term
Earphones can be used at a microphoneand vice versa (but shittily).
Definition
Uh-huh, that's cool.
Term
What is amplitude, in acoustics and psychoacoustics?
Definition
Acoustics - How tall and big a sound wave is.
Psychoacoustics - How humans perceive a sound (Soft or loud).
Term
What is frequency, in acoustics and psychoacoustics?
Definition
Acoustics - Cycles per second. One cycle = One period
Psychoacoustics - Pitch (high or low).
Term
Sound travels the fastest in what?
Definition
Solid, liquid, gas.
Term
How fast does sound travel in 68° Fahrenheit, C Level?
How does sound's speed change?
Definition
1,130 ft/s.
1.1 ft/s up if one degree hotter, down if colder.
Term
What is wavelength?
Definition
The distance for one cycle to complete
Term
What are the properties of diffraction?
Definition
If a wave length is longer than the obstacle, it’ll bend around it.
If a wave length is shorter than the obstacle, it’ll reflect off.
Term
What is frequency response?
Definition
A range of frequencies a device can respond to. Volume relationships of frequencies.
Term
What is the audio spectrum?
Definition
20Hz-20kHz thing (equalizer).
Term
What is the equal loudness principal?
Definition
The human ear hears mid-range louder than low and high frequencies.
Term
What is linearity?
Definition
Input = Output
Term
What is phase?
Definition
Time relationships between two or more sound waves at a given point in their cycle.
Term
What is timbre?
Definition
A sound’s unique tonal characteristic.
Term
List three components of timbre.
Definition
1. Fundamentals - Lowest frequency or pitch
2. Harmonics - Exact multiples
3. Overtones (Color tones) - odd numbered, not exact multiples
Term
What is envelope?
Definition
Acoustic lifestyle of a sound wave (ADSR).
Term
What is signal flow?
Definition
The path a signal takes from it’s source to it’s destination.
Term
What is the dynamic range of decibels?
Definition
0-140 dBs
Term
What are the two elements that basically make up audio?
Definition
Frequency and amplitude.
Term
How many increments of sound do humans hear?
Definition
Humans hear 10 trillion increments of sound.
Term
What is analogue?
Definition
The same as or like the original.
Term
What does DBSPL mean?
Definition
Decibel Sound Pressure Level. It's the acoustics in a room.
Term
What does DBV mean?
Definition
Decibel Voltage.
Term
What does DBM/DBU mean?
Definition
Decibel Milliwatt.
Term
What's a recording console/mixing/desk?
Definition
A board or a desk that allows the engineer to combine, control, and distribute the input and output signals. It’s basic function is to allow for any combination of mixing, spatial positioning, routing, and switching for the multitude of audio input/output signals that are commonly encountered in an audio production facility.
Term
What would one find in a control room?
Definition
A recording console, monitor speakers, tape machines, computers, chair.
Term
Explain live on-location recording.
Definition
Recordings on the spot, in real time, often during a single on-stage or in-the-studio performance, with or no studio postproduction other than mixdown.
Term
What's the role of the artist?
Definition
It’s the artist’s role to create the song, it’s key, melodies, harmonies, chords; the inner soul of the song.
Term
What are the aspects of studio musicians and arrangers?
Definition
Studio musicians provide the best possible musical support for a high-profile artist or vocalist.
Arrangers write and possibly conduct various musical parts.
Term
List four jobs of a producer.
Definition
1. Assists in the selection of songs.
2. Helps to focus the artistic goals and performance in a way that best conveys the music to the targeted audience.
3. Helps to translate that performance into a final, salable product.
4. Scheduling and handling the budgetary aspects of coordinating a recording project.
Term
List four jobs of an engineer.
Definition
1. Conceptualizes the best technological approach for capturing a performance or music experience.
2. Documents the process for other engineers or future production use.
3. Chooses and places the microphones.
4. Sets levels and balances on the recording console or DAW mixing interface.
Term
List four jobs of a studio manager.
Definition
1. The owner of the studio, managerial and marketing decisions.
2. Booking studio usage.
3. Competent secretarial staffing.
4. Knowledgeable in the “biz.”
Term
Describe the maintenance engineer's job.
Definition
The maintenance engineer’s job is to see that the equipment in the studio is maintained in top condition and regularly aligned and repaired when necessary.
Term
Describe the master engineer's job.
Definition
The mastering engineer’s job is to tweak the final master recording in terms of level, equalization, and dynamics so as to present the final “master” recording in the best possible sonic and marketable light.
Term
Describe the assistant engineer's job.
Definition
The assistant engineer’s job is to help out with the basic work of pre, production, and post and assist others.
Term
List four behind-the-scene jobs.
Definition
1. Artist Booking Agents
2. Manufacturing
3. Distribution
4. Live Sound Tour Management
Term
Give four things the book considers preproduction.
Definition
1. What is the goal?
2. What is the budget?
3. Is the group practiced enough?
4. Are there any legal issues to consider?
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