A-B Stereo is a recording technique. For this you have to use two identical omnidirectional microphones placed some distance apart. A-B stereo microphone technique is often used when the sound source is wide and/or when the distance from the microphones to the source is significant or become somehow relevant in that process of recording. Omnidirectional microphones are used to maintain consistent low-frequency response regardless of distance. A little attention to microphones placement will result in a wide stereo field with a good balance of room ambience and direct source signal.
More on A-B Stereo
Omnidirectional microphones are used in A-B stereo because they maintain consistent low-frequency response regardless of distance. This is important for creating a wide stereo field with a good balance of room ambience and direct source signal.
Benefits of A-B Stereo
One of the main benefits of A-B stereo is that it allows for a wide stereo field. This is achieved by placing the microphones at a distance from the sound source, which creates a sense of space and depth in the recording. Additionally, the use of omnidirectional microphones ensures that the low-frequency response remains consistent, resulting in a balanced sound.
Another benefit of A-B stereo is that it can be used to capture a large sound source, such as an orchestra or a choir. The use of two microphones allows for a more complete capture of the sound, resulting in a more dynamic and detailed recording.
Using A-B Stereo in Recording
When using A-B stereo, it’s important to pay attention to microphone placement. The ideal spacing between the microphones will depend on the size of the sound source and the desired stereo field. A general rule of thumb is to place the microphones at a distance of 2-3 times the width of the sound source.
Another important consideration is the angle of the microphones. They should be placed at a 90-degree angle to the sound source to ensure a balanced stereo field. It’s also important to pay attention to the distance between the microphones and the sound source to ensure that the low-frequency response remains consistent.