Let's Talk Phase!
Many engineers of home recording studios ignore this word. When it is brought up, they say it is nothing to worry about. This is far from the truth. Phase cancellation is not something that should be ignored. It can ruin a recording. The good news is, with a little preparation, phase issues can be fixed easily.
When recording in stereo, one of the first things that you need to do is use a matched pair of microphones. When you do this, the two microphones will have the same frequency response. If you use two different microphones to capture the same source, it is possible for many of the frequencies to cancel each other out. Another thing that you have to pay attention to is microphone placement. Each room has a sweet spot. To find the spot you may need to walk around the room and test out a few parts of the room. When recording you can use the XY pattern. You cross the microphones to point to each side of the room. This will give you a stereo image. Because the two microphones are in the same place, the sound waves will be hitting the microphones at the same time. In a situation like this, you will have virtually no phase cancellation issues.
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