From True Audio Codec Software
| Constant | Value | Description
|
| #define TTA_FRONT_LEFT | 0x1 | Front Left (Left)
|
| #define TTA_FRONT_RIGHT | 0x2 | Front Right (Right)
|
| #define TTA_FRONT_CENTER | 0x4 | Front Center (Center)
|
| #define TTA_LOW_FREQUENCY_LEFT | 0x8 | Primary LFE (LFE Left)
|
| #define TTA_BACK_LEFT | 0x10 | Back Left (Left Surround)
|
| #define TTA_BACK_RIGHT | 0x20 | Back Right (Right Surround)
|
| #define TTA_FRONT_LEFT_OF_CENTER | 0x40 | Left (Left Wide)
|
| #define TTA_FRONT_RIGHT_OF_CENTER | 0x80 | Right (Right Wide)
|
| #define TTA_BACK_CENTER | 0x100 | Back Center (Back Surround)
|
| #define TTA_SIDE_LEFT | 0x200 | Side Left (Left Surround Diffuse)
|
| #define TTA_SIDE_RIGHT | 0x400 | Side Right (Right Surround Diffuse)
|
| #define TTA_TOP_FRONT_CENTER | 0x800 | Top Center (Center Height)
|
| #define TTA_TOP_FRONT_LEFT | 0x1000 | Top Left (Left Height)
|
| #define TTA_TOP_FRONT_RIGHT | 0x2000 | Top Right (Right Height)
|
| #define TTA_LOW_FREQUENCY_RIGHT | 0x4000 | Secondary LFE (LFE Right)
|
| 
