none
Probably at least 4-8
Because not enough engineer's in the world so they want to make it sound more important so more people will become one.
Sound engineers enjoy some of the most diverse possible career choices imaginable. Everything from the sciences to the arts is wide open for people with sound engineer training, as different fields of many professions uses some form of sound equipment. If you think you may want to start looking for sound engineer jobs, make sure to know exactly what field you're looking to get into. The reason that this is important is because different fields of work will likely require a sound engineer to have different sets of skills. What acoustics scientists are looking for in a sound engineer will likely not be the same thing that a rock band is looking for with a sound engineer. By tailoring your resume, you help yourself stand out.
A live sound technician and live sound engineer are essentially the same job. "Engineer" has a connotation of someone that is more experienced/has more training than a technician. That being said, there is no committee that designates titles in the audio entertainment industry, such as those in the medicine field where each title specifies a certain level of education/skill.
There are quite a few things that a sound engineer can do. These sound engineers have the ability to manipulate sounds.
They are sound engineers. These people usually fall into 3 catagories based on what exactly they do. Recording engineer, mixing engineer, mastering engineer.
Robert Parker - sound engineer - died in 2004.
Robert Parker - sound engineer - was born in 1936.
Its not needed. It would improve the sound of your speakers and room. If you don't have experience, I would recommend just going without it or hiring a sound engineer to do a room analysis.
Jack Solomon - sound engineer - was born on 1913-03-08.
Peter Sutton - sound engineer - died on 2008-08-24.
John Pritchett - sound engineer - was born on 1947-03-29.