Characteristics of Sound-recording studio?

Sound absorbing materials. multiple layers of glass.

They are sound engineers. These people usually fall into 3 catagories based on what exactly they do. Recording engineer, mixing engineer, mastering engineer.

Sound is a travelling wave which is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to...

You can send hard drives or DVD discs by courier, use large file share utilities like MediaFire and DropBox, or utilize special internet-based collaboration tools built into programs like ProTools.

They need to hear the guide vocals or accompaniement to ensure they are singing at the right time and the right notes.