title: 22.2 surround sound
text: # 22.2 surround sound
  
  22.2 or Hamasaki 22.2 (named after Kimio Hamasaki, a senior research engineer at NHK Science & Technology Research Laboratories in Japan) is the surround sound component of Super Hi-Vision (a new television standard with 16 times the pixel resolution (7680×4320) of HDTV (1920x1080). It has been developed by NHK Science & Technical Research Laboratories. It uses 24 speakers (including two subwoofers) arranged in three layers.
  
  ## Channels
  
  The channel numbers and labels are:
  
  | AES Pair No./Ch No. | Channel No. | Label | Name |
  | - | - | - | - |
  | 1/1 | 1 | FL | Front left |
  | 1/2 | 2 | FR | Front right |
  | 2/1 | 3 | FC | Front center |
  | 2/2 | 4 | LFE1 | LFE-1 |
  | 3/1 | 5 | BL | Back left |
  | 3/2 | 6 | BR | Back right |
  | 4/1 | 7 | FLc | Front left center |
  | 4/2 | 8 | FRc | Front right center |
  | 5/1 | 9 | BC | Back center |
  | 5/2 | 10 | LFE2 | LFE-2 |
  | 6/1 | 11 | SiL | Side left |
  | 6/2 | 12 | SiR | Side right |
  | 7/1 | 13 | TpFL | Top front left |
  | 7/2 | 14 | TpFR | Top front right |
  | 8/1 | 15 | TpFC | Top front center |
  | 8/2 | 16 | TpC | Top center |
  | 9/1 | 17 | TpBL | Top back left |
  | 9/2 | 18 | TpBR | Top back right |
  | 10/1 | 19 | TpSiL | Top side left |
  | 10/2 | 20 | TpSiR | Top side right |
  | 11/1 | 21 | TpBC | Top back center |
  | 11/2 | 22 | BtFC | Bottom front center |
  | 12/1 | 23 | BtFL | Bottom front left |
  | 12/2 | 24 | BtFR | Bottom front right |
  
  Channel numbers up to 6 represent the same as those in a 5.1 channel system. There are then a further 5 listener-plane channels, 9 overhead channels, arranged in a square, and a row of 3 further channels at the bottom front, plus the additional LFE channel.
  
  ## Demonstrations
  
  * Expo 2005, Aichi, Japan
  * NAB Show 2006, Las Vegas, US
  * IBC 2006, Amsterdam, Netherlands
  * IBC 2008, Amsterdam, Netherlands
  * NAB Show 2009, Las Vegas, US
  * IBC 2010, Amsterdam, Netherlands
  * IBC 2011, Amsterdam, Netherlands
  * 2012 Summer Olympics, Bradford/Glasgow/London, UK
  
  ## Reviews
  
  * Ultra HD draws crowds, interest at NAB2006 at Broadcast Engineering Magazine, May 2, 2006
  