# Process Audio Announcement

PhysicalFunction

In-Flight Entertainment System > In-Flight Entertainment System > Physical Architecture > Physical Functions > Root Physical Function > IFE System > Manage Audio Video Diffusion > Process Audio Announcement

When an audio announcement is made (thoufh the aircraft equipment), the IFE system is responsible for forwarding the audio stream to all passengers. This function also triggers a passenger service interruption command

## Incoming Functional Exchanges

Exchange | Source | Description | Allocated Exchange Items
--- | --- | --- | ---
Audio Stream | Acquire Audio Stream from Aircraft |  |

## Outgoing Functional Exchanges

Exchange | Target | Description | Allocated Exchange Items
--- | --- | --- | ---
Packetized Audio Stream | Receive and Bufferize Audio Packets |  |
Service Interruption Command | Interrupt Current Service |  |

## Realized Elements

- Process Audio Announcement

## Diagrams displaying "Process Audio Announcement"

- [PDFB] [CTX] Display Video and Play Audio
- [PAB] [BUILD] All PCs, PFs, FEs
- [PAB] [BUILD] Template
- [PFBD] All Physical Functions
- [PDFB] [CTX] Play Audio on Seat TV
- [PDFB] [CTX] Manage Passenger Services Lifecycle
- [PDFB] [CTX] Manage Audio Video Diffusion