So, the aim of this little project is to run Midi Time Code on a Qlab machine, in time with a music track, and have cues fire on the lighting desk at set points in the music track. (more…)
Recently I have been working on a show at a theatre that is basically a game installation. There is a game that has been developed that runs in the space. The audience generate data and at the end of the game it gets displayed on the screens. This part of the show uses OSC commands to communicate between various macs dotted around.
One of the most important things to understand if you are operating any kind of sound desk whether in a live or studio environment is the Audio Signal Path.
It took me a good while to see the significance of understanding the signal path on the sound desk I was using. I thought that, because there was a button for everything, I could just wing it. I could always find what I wanted and away I went. Until it goes wrong, and you can’t understand why you’re not getting the results you want from the desk.
A microphone is a type of transducer. It converts sound pressure waves into electrical signals that can then be manipulated and amplified. Different technologies are used in different types of microphone to pickup the sound pressure wave. Some are better at picking up different frequencies compared to others and are therefore more suited to particular jobs.
Sound is vibration through a medium such as air or water. This vibration causes a mechanical pressure and displacement of particles, the frequency of which affects the pitch and the amplitude of which affects the volume. A good analogy for sound is dropping rocks into a pond. A big rock makes large ripples (waves) and travels further. The smaller rock makes smaller ripples (waves) and doesn’t travel as far. Sound travels at 330mps.
There was once a bloke called Alexander Graham Bell who you may know invented the telephone? Well he also invented a unit of measurement called the Bel. A 10th of a Bel is a Decibel. A Decibel or dB is used to express the difference between two values – often a measurement and a reference value.
At the end of the day, all digital consoles are just computers with some fancy faders and knobs on them – more often than not laid out in a useful order. And as with any computer, they don’t like being shut down abruptly. If the device is writing to it’s memory or any other a number of other tasks it could get corrupted. You don’t want this happening to your new shiny mixing console do you?! (more…)
Hi and welcome to Sound.Education. We are planning to write some great informative articles and tutorials about the Live Sound industry. Myself James and my friend Pete will be writing original content with the hope of you improving upon what we have to say too!