0Vyger 2 years ago ReplyUpvoteA stereo recording system uses 2 mics. Usually one on the right and left. They can also be front and back of the source but it records the same sound but from different places. So it is essentially sound in 3 D. The very small delays in picking up sounds is what your ears use to locate a sound source. That and the intensity of the sound at each ear and the difference between. If a sound is on your right your right ear will hear it fist. This is what your brain uses to determine where the sound comes from. All of that 3 D is removed when there is only one mic. It is like wearing one ear plug or an eye patch on one eye. In order for us to perceive 3D we need at least 2 sensors. If you only have one sensor, or one mic you cannot figure out the 3 D, so you cannot turn a single recording device into a 3D or stereo image. The data is not sufficent.