| Describe a what a crossover does. |
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| It divides frequencies into regions. It’s what tells the highs to go to the tweeter and lows to go to the woofer. |
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| What is a turnover frequency? |
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| The frequency selected on a shelving equalizer. |
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| Define amplitude in acoustics and psychoacoustics. |
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Acoustics: How big or tall a sound wave is.
Psychoacoustic: How loud or soft humans perceive a sound. |
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| The volume or signal level between minimum and maximum. |
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| Psychoacoustic processors could be a spectrum processor. |
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| What is the sound frequency spectrum? |
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| The range of frequencies from 20 Hz – 20 kHz. |
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| What are the two elements of audio? |
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| What is the intensity of a sound wave measured in? |
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| What is the power of an audio signal measured in? |
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| What is voltage in dB measured in? |
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| Volume Units. It shows the average signal level. |
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| Peak Program Meter. It shows the exact signal level. |
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| What do humans perceive, VU or PPM? |
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| Humans perceive VU, average volume level. |
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| The range between 0 VU and clipping. It allows for a signal to peak in without clipping. |
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| Everything electric doesn’t make noise. |
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| How much ambient noise in an acoustical space (acoustic or electrical phenomenon). |
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| Describe transmission loss. |
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| The reduction of DBSPL of a source sound as it passes through an acoustic barrier. |
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| Describe the two ways acoustic isolations works. |
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| Sound that occurs outside of a room stays outside and doesn’t leak in. Sound that occurs within a room stays inside and doesn’t leak out. |
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| What are the dynamic ranges of medias? |
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AM: 30 dB
FM: 50 dB
Magnetic Tape: 60 dB
CD: 90 dB |
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| They make soft sounds louder and loud sounds softer. |
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| They allow for sounds to get only so loud. |
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| What is the dynamic range of human hearing? |
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| What is threshold control? |
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| The user set level that tells the processor when to work. If a signal doesn’t pass the threshold, it won’t activate. |
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| It’s what controls the strength of the processor once the signal passes the threshold. |
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| Describe what a gate does. |
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| It allows the loudest amplitude to be heard. |
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| A virtual signal processor. |
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| Something that externally triggers a threshold? |
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| What is sibilance? What are its frequencies? |
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| S’s, Ch’s, and Z’s. 5k – 9kHz |
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| Define stereo buss output. |
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| The combination of all channels that signal goes through. |
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| Define the control room level. |
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| A copy of the signal output that’s played through the speakers. |
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| A line insert where effects return to the console which does not take up a channel. |
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| Electricity stuck in a circuit trying to find its way to the ground. |
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