• Those that make no attempt to capture sound location cues cues. This is the most common commercial recording using technique often with close microphone placement to individual sound sources.
  Image placement in the final recording is then fixed by stereo panning at the final mixing stage.

• Natural recording methods, such as binaural recording using dummy heads or similar, which try to capture some or all the original sound location cues available to the ear.

The systems of particular interest are :

• Ambiophonics and the related Panambiophonics which are presented in more detail in the Ambiophonics section. A direct link to the Ambiophonics site is www.ambiophonics.org
  The defects inherent in traditional stereo are presented in this section with a brief description of the Ambiophonics system.
  
  
• Configurations related to Optimised Microphone Triangles These techniques rely on level differences and time delays between adjacent microphones as primary sound location cues. This is the system currently under development having a number of practical advantages over Ambiophonics and overall preferred performance.