| Channel Label | Speaker Position | Typical Use | |---------------|------------------|----------------| | L (Left) | Front Left | Main dialogue/music left | | C (Center) | Under/above screen | Dialogue, center image | | R (Right) | Front Right | Main dialogue/music right | | LS (Left Surround) | Left side or rear-left | Ambient FX, pans | | RS (Right Surround) | Right side or rear-right | Ambient FX, pans | | LFE (Subwoofer) | Anywhere front | Low frequencies (20–120 Hz) |

Test: 5.1 Surround

| Channel Label | Speaker Position | Typical Use | |---------------|------------------|----------------| | L (Left) | Front Left | Main dialogue/music left | | C (Center) | Under/above screen | Dialogue, center image | | R (Right) | Front Right | Main dialogue/music right | | LS (Left Surround) | Left side or rear-left | Ambient FX, pans | | RS (Right Surround) | Right side or rear-right | Ambient FX, pans | | LFE (Subwoofer) | Anywhere front | Low frequencies (20–120 Hz) |