Phantom Powered Microphones. If you've ever done anything on the professional side of audio, you've probably run into a condenser microphone. These require power to work. Sometimes, that's a battery you put into the mic. Sometimes it's a separate dedicated power supply with a special multi-pin cable. But most often these microphones use phantom power. This is power delivered by a mixer or console, which uses the same cable that the audio comes back on.
invocation. 1  the act of invoking or calling upon a deity, spirit, etc., for aid, protection, inspiration, or the like; supplication. 2  any petitioning or supplication for help or aid. 3  a form of prayer invoking God's presence, especially one said at the beginning of a religious service or public ceremony.
Every function invocation has both a scope and a context associated with it. Fundamentally, scope is function-based while context is object-based. In other words, scope pertains to the variable access of a function when it is invoked and is unique to each invocation. Context is always the value of the this keyword which is a reference to the object that âownsâ the currently executing code.