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 of HDTV). It has been developed by NHK Science & Technical Research Laboratories. It uses 24 speakers (including two subwoofers) arranged in three layers.^[1]

Channels

Diagram of three major multichannel audio formats: 5.1, 9.2 and 22.2 channel layouts.

The channel numbers and labels are:^[2]

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^[3]
NAB Show 2009, Las Vegas, US
IBC 2010, Amsterdam, Netherlands
IBC 2011, Amsterdam, Netherlands
2012 Summer Olympics, Bradford/Glasgow/London, UK^[4]

Reviews

Ultra HD draws crowds, interest at NAB2006 at Broadcast Engineering Magazine, May 2, 2006

References

↑ "22.2 Multichannel Audio Format Standardization Activity" (PDF). NHK World. Retrieved February 17, 2014.
↑ "Ultra High Definition Television - Audio Characteristics And Audio Channel Mapping For Program Production". Society of Motion Picture and Television Engineers. 2008. SMPTE ST 2036-2:2008.
↑ Sangani, Kris (2008-10-11). "A game of leapfrog". Engineering & Technology. 3 (17): 8. doi:10.1049/et:20081720. Retrieved 2008-10-31.
↑ Sweney, Mark (2011-08-28). "BBC plans to use 3D and 'super hi-vision' for London Olympics". The Guardian. London.

External links

22.2 Multichannel Sound System for Ultra High-Definition TV article at the Wayback Machine
22.2 Standardization of Multichannel Sound System Japanese article at the Wayback Machine

Broadcast video formats

Television

Analog

525 lines	System M NTSC NTSC-J PAL-M
625 lines	PAL System B System D System G System H System I System K PAL-N PALplus SECAM System B System D System G System K System L (SECAM-L)
Audio	BTSC (MTS) EIAJ NICAM SAP Sound-in-Syncs Zweikanalton (A2/IGR)
Hidden signals	Captioning CGMS-A EPG GCR PDC Teletext VBI VEIL VIT VITC WSS XDS
Historical	Pre-1940 Mechanical television 180-line 405-line System A 441-line 819-line MAC MUSE

Digital

Interlaced	SDTV 480i 576i HDTV 1080i
Progressive	LDTV 1seg 240p 288p EDTV 480p 576p HDTV 720p 1080p UHDTV 2160p 4320p
MPEG-2 standards	ATSC DVB ISDB DTMB DVB 3D-TV
MPEG-4 AVC standards	ATSC A/72 DMB DTMB DVB SBTVD 1seg
HEVC standards	ATSC 3.0
Audio	AC-3 (5.1) DTS MPEG-1 Audio Layer II MPEG Multichannel PCM LPCM AAC HE-AAC
Hidden signals	AFD Broadcast flag Captioning CPCM EPG Teletext

Technical issues
14:9 compromise Broadcast-safe Digital cinema (DCI) Display motion blur Moving image formats MPEG transport stream Reverse Standards Conversion Standards conversion Television transmitter Video on demand Video processing Widescreen signaling Templates (Analogue TV Topics)

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