My Guitar Notes

Room mic

A microphone placed some distance from the source to capture the sound of the room rather than the instrument alone.

A close microphone hears the speaker and little else, so a second, more distant microphone is added to pick up the reflections and size of the space, which makes a recorded guitar sound like it exists somewhere. The room mic is usually blended at a lower level than the close one and often compressed hard, so its reflections become audible as ambience. The quality of the room sets the value of the microphone: a good room rewards the technique and a poor one punishes it.

Example: A guitar track that sounds small and dry until a distant microphone is faded in behind the close one has been missing its room mic.

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