| 1.0 |
Mono |
One Channel Mono,
usually through the center speaker |
| 1.1 |
Mono plus sub woofer |
Center speaker and LFE channel |
| 2.0 (mono) |
two channel mono |
The mono audio is driven to both front
speakers. Usually shows as regular 2.0 |
| 2.0 |
Stereo |
Dolby Stereo |
| 3.0 |
Three channel |
Front right and left, center |
| 4.0 |
Four Channel Surround |
Front and rear speakers, no center or LFE
channels |
| DTS 4.0 |
DTS four channel |
DTS version of 4.0 audio |
| 4.1 |
Five Channel Surround |
Like four channel with the LFE channel
active |
| DTS 4.1 |
DTS five channel |
DTS version of 4.1 |
| 5.0 |
Five Channel Surround |
Front, center and rear channels, no LFE
channel |
| 5.1 |
Dolby 6 Channel |
All six standard channels |
| DTS 5.0 |
DTS 5 channel |
Like regular DTS without an LFE channel |
| DTS |
Digital Theater Sound |
DTS Six Channel Surround |
| 6.1 ES |
Seven Channel DTS |
DTS form of discreet seven channel audio |
| 6.0 ES |
DTS Six Channel |
Like DTS ES without an LFE channel |
| 5.1 EX |
Seven channel matrixed |
Rear center channel is derived |
| 6.1 EX |
Seven Channel Dolby |
Rear channel is discreet |
| SUR |
Prologic Surround |
Dolby Surround, Stereo Surround, requires
Prologic decoder for matrixed rear audio |
| PCM |
PCM Audio |
Stereo, neither Dolby or DTS standard |
| DUB |
Dubbed in English |
Original language dialogue replaced with
English |
| SUB |
Subtitles |
Original language with English subtitles |
| SIL |
Silent Film |
Often contains stereo track for background music |
| VAR |
Various |
More than one format, usually box sets |
| UNK |
Unknown |
Unknown, not Provided in
studio technical specifications |