|
|
| A variable resistor that controls the flow of electricity between minimum and maximum (It’s not boosting volume, it’s allowing more energy that’s already there). |
|
|
|
|
| What is a virtual console? |
|
| Looks like a mixing console but on a screen. |
|
| 48 Volt is used to power which kind of microphone? |
|
| Condenser/capacitor microphones. |
|
|
|
| Holds energy, stores electrical charge. |
|
| What are the Three System? |
|
| Input System, Output System, and Monitor System. |
|
| What is the Input System/Pre Amp? |
|
| Signal goes into console (signal level adjuster). |
|
| How many millivolts equal one volt? |
|
| 1000 millivolts equal 1 volt. |
|
|
|
| A rock that has a magnetic field. |
|
| What are the two types of input? |
|
Mic – Weak signal. Pre Amp amplifies mic signal.
Line – Already amplified signal. |
|
|
|
| Anything that you can change, e.g. panoramic potentiometer, fader, etc. |
|
| Name mic, line, and speaker from lowest to highest. |
|
| Mic (Low), Line (Mid), Speaker (High). |
|
What is impedance?
What is it measured in? |
|
| Resistance on an electrical circuit (ohms ?). Hi Z, Low Z. |
|
|
|
|
| What does phase reverse do? |
|
| Phase reverse reverses the phase to avoid beats or canceling two sound wanes out. |
|
| 8k-10k ? > DI Box > ___ ?? |
|
| 8k-10k ? > DI Box > 600 ?? |
|
|
|
| Cuts level by __ (10, 12 dBs), allowing one to turn the gain up (only when when peaking at the gain’s lowest level). |
|
|
|
|
Explain Bass Rolloff/Hi Pass Filter.
Explain Low Pass filter.
Explain Band Pass Filter. |
|
Base Rolloff/Hi Pass Filter – Frequencies below cutoff are cutoff (Highs-Pass-Filter, at 40Hz, 60Hz, 80Hz).
Low Pass Filter – Frequencies above cutoff and cutoff (Lows-Pass-Filter, 2kHz).
Band Pass Filter – Has high cutoff and low cutoff (telephone effect).
Filters only cut. |
|
| Explain the Output System. |
|
|
|
|
| Signal combiner and transporter. |
|
|
|
| Panoramic Potentiometer, it controls flow of electricity between L buss outputs. |
|
| Explain the Monitor System. |
|
| Controls speaker & headphone output independently of the Output System. |
|
| Explain objective and subjective. |
|
Objective is factual.
Subjective is opinionated. |
|
| What is temporary threshold shift in acoustics and psychoacoustics. |
|
Acoustics – Muscles clamping down on the hammer, anvil, and stirrup to stop it from vibrating.
Psychoacoustics – Cotton in one’s ears. |
|
|
|
| Volume range; signal level between minimum and maximum. |
|
| The power of an audio signal is measured in ______? |
|
| The power of an auto signal is measured in DBM/DBU. |
|
| What is proximity effect? |
|
| When a cardioid patterned microphone is too close it a sound source, the bass frequencies overpower mid & hi frequencies. |
|
| Explain the difference between a balanced and unbalanced line. |
|
A balanced line carries audio signal with three wires, hot, cold and ground.
An unbalanced line carries an audio signal with two wires, hot and cold (+ -). |
|