Howtosignalprocessing
- What is a near field mic?
- What is near field recording?
- What is near field and far field in acoustics?
What is a near field mic?
Part of a sound field, usually within about two wavelengths from the noise source, where there is no simple relationship between sound level and distance. The sound source cannot be regarded as a point source.
What is near field recording?
Near-field potentials are generated close to the recording electrode; far- field potentials are generated at a distance from the recording electrode. Biological electrical signals are often dipoles with a negative and a positive end.
What is near field and far field in acoustics?
As one may suspect, the acoustic terms “near field” and “far field” have to do with the physical distance from the sound source (Figure 1). Depending on how far away an observer is from a sound emitting object, the acoustic energy produced by the sound source will behave quite differently.
