The Sound Professionals, Inc. is a manufacturer of professional and consumer microphones and audio electronics, primarily for portable audio recording. Created in 1997, they are one of a small number of manufacturers of binaural

Binaural

Binaural literally means "having or relating to two ears." Binaural hearing, along with frequency cues, lets humans and other animals determine direction of origin of sounds...

 and other types of microphones for binaural recording

Binaural recording

Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3-D stereo sound sensation for the listener of actually being in the room with the performers or instruments. This effect is often created using a technique known as "Dummy head...

. They are also the only manufacturer of true "in-ear" binaural

Binaural

Binaural literally means "having or relating to two ears." Binaural hearing, along with frequency cues, lets humans and other animals determine direction of origin of sounds...

 microphones used as a popular alternative to dummy head recording

Dummy head recording

In acoustics, dummy head recording is a method used to make binaural recordings, that allow a listener wearing headphones to perceive the directionality and the room acoustics of single or multiple sources.Human perception of the direction of a sound source is complex, and consists of:#Simple...

.