Every industry has its own jargon, it is important to learn the jargon so that you can communicate easily with other crew members.
Some examples include:
‘The Talent’ - this refers to anyone performing or presenting – the reason for the event. So, the talent might be a person giving a speech or someone doing a dance. It is not meant to be judgemental.
The ‘Gig’ - the ‘gig’ is the event, whether it be a wedding, a corporate event or a major musical event, it is referred to as the ‘gig’
Bump In/Bump Out - refers to setting up and packing up of the event
Cans - Industry jargon for a communication system
Mic - abbreviation of Microphone
Wet or Dry Mix - this refers to whether there is any audio processing on the sound. A dry mix has no processing, a wet mix has processing on the sound
Snake - refers to an audio multicore
Digital Snake - refers to a digital multicore
Gender Bender - adapter connectors to change plugs from male to female. Also known as sex changers.
Specs - an abbreviation of specifications. As a new employee you might be told to check the specs for a piece of equipment. In other words, look up the manual. It also has a slightly different meaning. If you are told to “Go spec the job”, you are being asked to find out what the client wants in terms of equipment and labour - the client’s specifications.
Aux - an abbreviation of auxiliary. Most audio consoles have one more auxiliary channels (often referred to as aux channels). This feature allows you to send a secondary feed of an input channel's audio signal to another destination, independent of the channel's main output. It might be to an effects processor, stage monitors or a sub speaker.
When we talk about frequency we are talking about the number of times per second that a sound pressure wave repeats itself and this determines the pitch. The lower the frequency, the fewer the oscillations. High frequencies produce more oscillations. The units of frequency are called hertz (Hz) with 1 Hz equally one cycle per second. Humans with normal hearing can hear sounds between 20 Hz and 20,000 Hz.
➢ Hertz (Hz) = The unit of frequency equal to one cycle per second
➢ Kilohertz (kHz) = The measure of frequency equal to one thousand cycles per second
Sound is measured in units called decibels (dB). The higher the decibel level, the louder the noise. On the decibel scale, the level increase of 10 means that a sound is actually 10 times more intense, or powerful. Any sounds above 85 dB can be harmful particularly is experienced over a long period of time.
Ohms are the unit of measure for electrical resistance in a conductor and are represented by the letter “R” in electrical equations. Resistance tries to slow down the flow of electrons.
Think of electrical current like water flowing through a pipe. The higher the resistance, the harder it is for the electrical current to flow.
Speakers have an impedance rating, usually written as:
4 Ω
8 Ω
16 Ω
Although impedance and resistance aren't exactly the same thing, ohms (Ω) are used to indicate the speaker's impedance.
This rating tells us how much electrical load the speaker places on the amplifier.
For example:
8 Ω speaker → presents an 8-ohm load to the amplifier.
Why does this matter?
The amplifier and speakers need to be compatible.
An amplifier is designed to work safely with a particular range of speaker impedances.
For example, an amplifier might say:
Minimum load: 4 Ω
This means you should not connect a speaker arrangement that creates a load below 4 Ω.
If the load is too low, the amplifier may have to supply more current than it is designed to handle. This can cause:
overheating
distortion
amplifier protection circuits activating
equipment damage
Easy rule for students:
Lower ohms = more electrical current required from the amplifier.
Higher ohms = less current required from the amplifier.
Here is a video explaining Volts, Amps and Watts. You will only need to watch up to 4:23 but feel free to watch to the end later.