22.2 Surround Sound (Hamasaki 22.2 )

22.2 multichannel sound is a part of  Ultra High Definition System (or “Super Hi-vision“), developed by Japan Broadcasting Company (NHK). It was named after Kimio Hamasaki – a Senior Research Engineer at NHK Science & Technical Research Laboratories. It utilizes 24 speakers (including two sub-woofers) arranged in three layers, which create a 3D space around a listener.

www.nhk.or.jp

22.2 surround sound speakers position:

1. Upper layer: Nine speakers above ear level
   • Top-Front-Center
   • Top-Front-Left
   • Top-Side-Left
   • Top-Back-Left
   • Top-Center
   • Top-Back-Center
   • Top-Front-Right
   • Top-Side-Right
   • Top-Back-Right
2. Middle layer: Ten speakers at ear level
   • Front-Center
   • Front-Left-of-Center
   • Front-Left
   • Side-Left
   • Back-Left
   • Back-Center
   • Front-Right-of-Center
   • Front-Right
   • Side-Right
   • Back-Right
3. Lower layer: Five speakers below ear level
   • Left sub-woofer
   • Bottom-Front-Left
   • Bottom-Front-Center
   • Right sub-woofer
   • Bottom-Front-Right

More info: Kimio Hamasaki: Development of Ultra High Definition Television, Super Hivision, Wikipedia.