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Audio Pro Final
| Term | Definition |
|---|---|
| Impedance is | Resistance to the flow of Voltage |
| Moving coil microphones and ribbon microphones are classified as | Dynamic microphones |
| Sound propagates through the air because | Of the elasticity of air |
| The number of times in a second a vibration completes one cycle is known as its | Frequency |
| The frequency of a sound wave is perceived | Pitch |
| Hertz is the term used to designate | Cycles per second |
| When the direct sound by 25 milliseconds or more, the listener perceives | Echo |
| The range of the difference in decibels between the quietest and loudest sound is called | Dynamic range |
| The equal loudness curves demonstrate the human ear's relative sensitivity to | Midrange frequencies |
| Digital editing is destructive editing by definition | False |
| Digital Audio systems transforms audio signals into | Binary code bits |
| Prolonged exposure to loud sound can bring on | Tinnitus |
| The human ear converts mechanical vibrations into electrical and chemical signals to be sent to the brain. The part of the ear that begins this transformation is the | Cochlea |
| Resonance results when a vibrating body | With the same natural frequencies as another body forces the second vibrate |
| A microphone converts acoustical energy into | Electrical energy |
| A balanced phone plug has a | TRS: Tip, Ring, Sleeve |
| Most of our speaking fall into this range of the frequency spectrum | 320-2560Hz |
| Distortion is the | Appearance of a signal in the reproduced sound that was not in the original sound |
| The device that divides the spectrum of the signal before it is sent to the woofer(s) and tweeter(s) is called | Crossover network |
| A synonym for non-directional is | Omnidirectional |
| To enhance proximity effect | Place the mic close to the sound source |
| Of the following, which is NOT a method of supplying power to a capacitor microphone | Capacitance |
| A pan pot or panoramic potentiometer is | A volume control that shifts loudness between two master channels |
| ________ is the difference between normal operating levels and the point where distortion (clipping) starts to occur | Headroom |
| The connecting point of most, if not all, of a studio's inputs and outputs in the | Patch Bay |
| The frequencies between 20Hz and 80Hz are considered the | (Low) Bass |
| Mic Pickup Pattern: Bi- | Bi-directional / Figure 8 |
| Mic Pickup Pattern: Om | Omnidirectional |
| Mic Pickup Pattern: Uni- | Unidirectional / Cardioid |
| Mic Pickup Pattern: Sub- | Sub Cardioid |
| Mic Pickup Pattern: Sup | Super Cardioid |
| Mic Pickup Pattern: Hyp | Hyper Cardioid |
| Mic Pickup Pattern: Ult | Ultra Cardioid |
| Devices that attenuate certain bands of frequencies. All frequencies above or below of selected frequencies are affected. | Filters |
| A level over 100% ________ will distort. | Percentage of Modulation |
| Minimum discernible difference between two sounds | Decibel |
| Lower and higher Frequencies are less discernable at lower levels. a. Lower/higher frequencies won't be as loud b. Mid-range frequencies are what we hear best c. Listening at loud volume- will distort your signal | Range of Human Hearing |
| Characteristics/shape of a sound wave | Timbre |
| A signal path which can be used to combine (sum) individual audio signal paths together | Bus |
| A control signal being used to change some aspect or parameter of another signal. | Modulation |
| Any kind of deformation of an output waveform compared to its input, usually clipping | Distortion |
| Ex: XLR, Quarter-Inch TRS | Balanced |
| Ex: RCA Cables, Quarter-Inch TS | Unbalanced |
| The balance between pieces of audio equipment. Ideal: input should equal output. | Unity Gain |
| Alters frequency response by increasing or decreasing the level of a signal at a specific portion of frequency spectrum. | Equalizers |
| DSP in Computers | Digital Signal Processors |
| Reduces an audio signal’s dynamic range, by turning down the loudest peaks. Can raise overall average level without out the peaks hard clipping. | Compressors |
| Is a compressor whose output level stays at or below a preset point. Regardless of how loud the input is, the output will never go above the ceiling. | Limiters |
| Allows users to enjoy one-way sound from their host computers to their client devices like your client computer or mobile devices | Remote |
| Hearing all the stereo mix, minus the talent voice | Mix Minus |
| The average number of samples obtained in one second | Sampling Rates |
| The period of time that it takes data to get from one designated point to another. In audio the signal delay through the driver and the interface to the output. | Latency |
| Between -12 to -6 db. Don't peak over -3 db | Levels-Voice Recording |
| Buffering. The player receives data and stores it in a buffer before use. | Downloadable Streaming Formats |
| Distance of numerous microphones should be three times the distance between the sound source and the nearest microphone. | Three-to-one Rule |
| Like a compressors affects dynamic range. But where as a compressors reduces it, ______ increases it | Expander |
| +48v DC electric power transmitted through microphone cable. | Phantom Power |
| Legal ID - Station Identification every hour. | FCC (Federal Communications Commission) |
| Is an Add On Software that gives hard disk recording / editing system signal processing alternatives beyond what the original software or system provides | Plug-Ins |
| (Low cut) Attenuates/stops/cuts signal frequencies BELOW a certain point. | High Pass Filter |
| (High cut) Attenuates/stops/cuts signal frequencies ABOVE a certain point. | Low Pass Filter |
| All frequencies in the middle are VIP, They're In. | Band pass filter |
| 20-40Hz 40-80Hz | Sound Frequency Spectrum - Low Bass (Boom sounds, Instruments) |
| 320-640Hz 640-1,280Hz 1,280-2,560Hz | Sound Frequency Spectrum - Mid Range (Much of our spreading falls here) |
| 2,560-5,120Hz | Sound Frequency Spectrum - Upper Mid Range (Gives speech it's "Bite", sound it's presence) |
| 80-160Hz 160-320Hz | Sound Frequency Spectrum - Upper Bass (Lower tones from many Instrumments, Sound it's "fullness") |
| 5,120-10,240Hz 10,240-20,480Hz | Sound Frequency Spectrum - Treble (Gives sound it's Life, sound crisp feeling) |
| Connection Speed: 128-150 kbps - Stereo | CD Quality - 20khz |
| Connection Speed: 96 kbps - Stereo | Near CD Quality - 15khz |
| Connection Speed: 56-64 kbps - Stereo | Near FM Quality - 12khz |
| Connection Speed: 24-32 kbps - Stereo | Boombox FM Quality - 7.5khz |
| Connection Speed: 16 kbps - Mono | AM Quality |
| Audio Formats: MPEG | Moving Picture Experts Group |
| Audio Formats: MPEG-2 Layer 3 | MP3. 16-128kbps |
| Audio Formats: MPEG-2 AAC | 30% better than MP3 |
| Audio Formats: MPEG-4 AAC | MP4. Near CD Quality. Supports surround sound. |
| First download the file and then allows to play. | Downloadable Non-Streaming formats |
Created by:
skinder.german582
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