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Signal Flow

This page shows how sound and video travel through the system, from microphones and cameras all the way to the speakers, screens and YouTube. It is mainly for maintainers and for AI assistants answering "what connects to what" questions, but the diagrams are simple enough for anyone.

Physical wiring diagram

The diagram below shows the actual physical connections (cabling) between the equipment.

Physical wiring diagram of the AV system

Draft diagram — work in progress

This is an early rough draft (v3). It will be replaced once Mills IT has confirmed every connection and channel on site. Treat the logical diagrams below and the Equipment List as the more reliable reference until this wiring diagram is finalised.

The whole system

flowchart TD
    subgraph Inputs
        MICS[Microphones Ch1-5 + Rode M5 pair]
        CAM1[Camera 1 - RoboShot HDMI 12]
        CAM2[Camera 2 - AVKANS 20X PTZ]
        PC[PowerPoint PC - NUC]
    end

    MICS --> QU[Allen & Heath QU-5D Mixer]

    QU -->|Main LR| JBL[JBL SRX812P - Auditorium]
    QU -->|Foyer Matrix| FAMP[Foyer Amplifier] --> FSPK[Foyer Speakers]
    QU -->|Livestream Matrix| RCV[RodeCaster Video]

    CAM1 --> RCV
    CAM2 --> RCV
    RCV --> YT[YouTube Livestream]

    PC --> MX[Bluestream HDMI Matrix]
    MX --> TVL[Front TV Left]
    MX --> TVR[Front TV Right]
    MX --> CONF[Rear Confidence Monitor]
    MX --> FIRE[Fireplace TV]
    MX --> MEET[Meeting Room TV]

    subgraph Control
        JOY[AVKANS Joy Pro Controller]
        SD[StreamDeck XL + Companion on NUC]
    end
    JOY -. moves .-> CAM1
    JOY -. moves .-> CAM2
    SD -. switch/preset/stream .-> RCV
    SD -. recall presets .-> CAM1
    SD -. recall presets .-> CAM2
    SD -. next/prev slide .-> PC

Audio signal flow

flowchart LR
    M[Microphones] --> QU[QU-5D]
    QU -->|Main mix| SPK[Church Speakers - JBL SRX812P]
    QU -->|Foyer matrix mix| AMP[Foyer Amp] --> FS[Foyer Speakers]
    QU -->|Livestream matrix mix| RCV[RodeCaster Video] --> YT[YouTube]

Key points:

  • One mixer, three outputs. The QU-5D builds the main, foyer and livestream mixes independently.
  • The livestream and foyer are matrix mixes — separate balances, not just copies of the room sound. This is why a microphone can be present in one mix but not another.

➡️ Audio Overview · Livestream Mix · Foyer Mix

Video signal flow

flowchart LR
    C1[Camera 1 - RoboShot] --> RCV[RodeCaster Video]
    C2[Camera 2 - AVKANS] --> RCV
    AUD[Livestream audio from QU-5D] --> RCV
    RCV --> YT[YouTube]

Key points:

  • Both cameras feed the RodeCaster Video.
  • The RodeCaster combines the chosen camera with the livestream audio mix and streams to YouTube.

➡️ Video Overview · RodeCaster Video

Presentation / display signal flow

flowchart LR
    PC[PowerPoint PC - NUC] --> MX[Bluestream HDMI Matrix]
    MX --> TVL[Front TV Left]
    MX --> TVR[Front TV Right]
    MX --> CONF[Confidence Monitor]
    MX --> FIRE[Fireplace TV]
    MX --> MEET[Meeting Room TV]

Key points:

  • The PowerPoint PC is the source.
  • The Bluestream matrix routes that picture to any of the screens.

➡️ TV Distribution · Bluestream Matrix

How control flows (who tells what to do)

Control Talks to To do what
StreamDeck XL (via Companion on the NUC) RodeCaster, cameras, PowerPoint Switch cameras, recall presets, start/stop stream, change slides
AVKANS Joy Pro Controller Camera 1 and Camera 2 Pan, tilt, zoom by hand
QU-5D faders/mutes The three audio mixes Balance sound for room, foyer, livestream

Where signals are most likely to break (for troubleshooting)

Link If it fails Page
Mic → QU-5D No / one mic missing No Sound
QU-5D livestream matrix → RodeCaster No audio online No Livestream Audio
Camera → RodeCaster Black/frozen camera No Camera Video
Controller → Camera Camera won't move Camera Not Moving
PC → Matrix → TV Blank / wrong screen TV Not Working
RodeCaster → YouTube Stream drops Network Overview