CB AV MINISTRY

AUDITORIUM / ROOM OVERVIEW

Auditorium Room Overview

Primary technical reference for the Auditorium AV setup — systems, equipment inventory, signal flow, pre-service checks, startup and shutdown, and common failures and troubleshooting.

Room: AUDITORIUMType: ROOM-OVERVIEWRev: August 23, 2026

Document Control

  • Owner:
  • Last Reviewed: 2026-08-23
  • Audience: Leaders, trainers, and advanced operators
  • Related Volunteer Role Guides: FOH Audio, Livestream Audio, Livestream Video, Projection, Lighting
  • Supporting Photos / Screenshots:

Purpose

The Auditorium AV system supports in-room worship services, livestream production, projection for the congregation, a Stage Display for people on the platform, a House Overflow Feed for lobby and nursery viewing, and both normal-service and event-style lighting control.

Operator Positions

Operator Position Discipline Primary responsibility
FOH Audio Audio Runs the House Mix from the Audio Booth and usually also handles normal-service Stage Lighting and House Lights
Livestream Audio Audio Runs the Livestream Audio Console and creates the audio used by the Program Feed and ASL Feed
Livestream Video (vMix) Livestream Runs vMix, controls PTZ cameras, starts/schedules streams, and owns FOH Source Mode when no Livestream Audio operator is present
Projection (ProPresenter) Projection Runs ProPresenter outputs for Audience View, Lower Thirds, and the Stage Display
Lighting Lighting Optional dedicated event operator for more complex Stage Lighting and House Lights during concerts, cantatas, and similar events

Systems in This Room

System Purpose Primary operator position
FOH Audio Create the House Mix for the congregation and support monitors, lobby/hallway audio, assistive listening, and Dante sends FOH Audio
Livestream Audio Create the broadcast mix used by the Program Feed and ASL Feed Livestream Audio
Livestream Video Switch cameras and graphics for the main livestream, ASL livestream, and synchronized overflow feeds Livestream Video (vMix)
Projection Drive projector content, Lower Thirds graphics, and the Stage Display Projection (ProPresenter)
Lighting Control Stage Lighting through Lightkey and House Lights through relay switches FOH Audio or Lighting

Equipment Inventory

Equipment Role in system Notes
Allen and Heath Avantis FOH audio console Located in the Audio Booth
Allen and Heath GX4816 Stagebox for most stage inputs Located in a rack at the front of the Auditorium; connected to the Avantis over S-Link
Power sequencer FOH power-up and shutdown sequencing Used when bringing the FOH system online or offline
Digital keyboard Stage instrument played during services Sends MIDI to the keyboard iPad over a MIDI-to-USB adapter
Keyboard iPad running Sunday Sounds Produces the keyboard’s sound from the keyboard’s MIDI input Connects through a USB-C hub with Power Delivery passthrough; a USB-C power adapter keeps the iPad charged
Keyboard audio interface Routes Sunday Sounds audio to the keyboard speaker and the House Mix Sits on the same USB-C hub; headphone output feeds the keyboard speaker, RCA outputs feed the DI box
Keyboard speaker Local speaker on top of the keyboard Fed from the audio interface headphone output; must be on for the keyboard rig sound test
Passive DI box (keyboard) Converts the audio interface RCA output to XLR for the sound system Fed from the interface through an RCA-to-1/4-inch cable
Behringer Wing with Dante card Livestream Audio Console Located in the AV Room
Dante USB interface Sends livestream audio into vMix Connected to the vMix computer
TP-Link Dante-only network switch Dedicated Dante transport between Avantis, Wing, ProPresenter DVS, and the Dante USB interface Separate from the general control network
UniFi network switch General control network for PTZ cameras, ATEM, controllers, and AV computers Carries camera control and device-management traffic
Blackmagic ATEM 2 M/E Constellation Video router/switcher for projection, livestream inputs, and House Overflow Feed Used mainly as a router/distributor for vMix inputs plus Mix Effect 2 for the House Overflow Feed
vMix computer with DeckLink Duo card Main livestream switching and recording system Produces both the Program Feed and the ASL Feed
ProPresenter Mac mini with Sonnet PCIe chassis and DeckLink Duo card Presentation playback and graphics output Sends Audience View plus Key and Fill outputs
Canon CR-N500 PTZ cameras (x3) Main stage cameras Inputs 1-3 on the ATEM
Canon CR-N300 PTZ camera Side/congregation/band camera Input 4 on the ATEM
PTZOptics 20x ZCam Deaf signer camera Input 5 on the ATEM
Canon RC-IP100 Manual PTZ camera controller Used by the Livestream Video operator when presets are not enough
SDI-to-HDMI overflow distribution Converts and distributes the House Overflow Feed to lobby and nursery TVs Fed from the ATEM overflow path
Sound-room multiview TV Confidence monitor for the ATEM multiview Fed from the ATEM
Lightkey Mac mini Stage Lighting control computer Outputs DMX through a USB adapter
Lighting fader controller Primary lighting preset interface Used with Lightkey
DMX USB adapter and DMX splitter Lighting control distribution Split toward two main Stage Lighting sections
Relay switch bank House Lights control Located in the Audio Booth
Front-rack DSP Processing for main speaker system and subwoofer Feeds amplifiers for audience speakers
Amplifiers Drive mains, monitors, lobby/hallway speakers, and other zones Front-rack audio amplification
William Sound system Assistive Listening System Fed from a matrix output of the House Mix
Wireless handheld microphone receivers (x8) Wireless handheld microphones for the platform Receiver outputs patch directly into Avantis local inputs, not through the GX4816 stagebox
Wireless headset/lapel microphone receivers (x2) Wireless bodypack microphones used with headsets or lapels Receiver outputs patch directly into Avantis local inputs, not through the GX4816 stagebox
Stage Display On-stage display for service content cues Fed from an HDMI output on the ProPresenter Mac mini through HDMI-over-Ethernet

System Diagrams

High-level video and presentation flow

flowchart LR
subgraph sources["Video sources"]
C1["Camera 1"]
C2["Camera 2"]
C3["Camera 3"]
C4["Camera 4"]
DSC["Deaf signer camera"]
PP["ProPresenter Mac mini"]
end

subgraph routing["Routing and switching"]
ATEM["ATEM 2 M/E Constellation"]
VMIX["vMix computer"]
SYNC["vMix-ATEM Sync Service"]
end

subgraph inroom["In-room destinations"]
PROJ["Left and right projectors"]
STAGE["Stage Display"]
MULTI["Sound-room multiview TV"]
LOBBY["Lobby TVs"]
NURSERY["Nursery TVs"]
end

subgraph stream["Stream destinations"]
RELAY["Azure Ubuntu relay server"]
SOCIAL["YouTube / Facebook / SermonAudio"]
ASL["ASL YouTube stream"]
end

C1 --> ATEM
C2 --> ATEM
C3 --> ATEM
C4 --> ATEM
DSC --> ATEM

PP -- "Audience View" --> ATEM
PP -- "Key + Fill" --> ATEM
PP -- "HDMI" --> STAGE

ATEM -- "Direct outs" --> VMIX
ATEM -- "Outputs 9-10" --> PROJ
ATEM --> MULTI
VMIX --> SYNC
SYNC --> ATEM
ATEM -- "House Overflow Feed" --> DIST["SDI-to-HDMI distribution"]
DIST --> LOBBY
DIST --> NURSERY

VMIX -- "Program Feed" --> RELAY
RELAY --> SOCIAL
VMIX -- "ASL Feed" --> ASL

Projection and presentation outputs

flowchart LR
PP["ProPresenter Mac mini"] -->|ATEM input 8<br/>Audience View| ATEM["ATEM 2 M/E Constellation"]
PP -->|ATEM input 6<br/>Fill| ATEM
PP -->|ATEM input 7<br/>Key| ATEM
PP -->|HDMI over Ethernet| STAGE["Stage Display"]
ATEM -->|ATEM output 9| LPROJ["Left projector"]
ATEM -->|ATEM output 10| RPROJ["Right projector"]
ATEM -->|ATEM direct output 6| VMIXF["vMix DeckLink input<br/>Fill"]
ATEM -->|ATEM direct output 7| VMIXK["vMix DeckLink input<br/>Key"]

ProPresenter Mac mini -> DeckLink outputs -> ATEM input 8 (Audience View) -> ATEM outputs 9 and 10 -> left and right projectors

ProPresenter Mac mini -> DeckLink outputs -> ATEM inputs 6 and 7 (Key and Fill) -> ATEM direct outputs 6 and 7 -> vMix DeckLink inputs

ProPresenter Mac mini HDMI output -> HDMI-over-Ethernet adapter -> Stage Display

Livestream video and overflow path

flowchart LR
C1["Camera 1"] -->|ATEM input 1| ATEM["ATEM 2 M/E Constellation"]
C2["Camera 2"] -->|ATEM input 2| ATEM
C3["Camera 3"] -->|ATEM input 3| ATEM
C4["Camera 4"] -->|ATEM input 4| ATEM
DSC["Deaf signer camera"] -->|ATEM input 5| ATEM

ATEM -->|ATEM direct output 1| VMIX1["vMix DeckLink input 1"]
ATEM -->|ATEM direct output 2| VMIX2["vMix DeckLink input 2"]
ATEM -->|ATEM direct output 3| VMIX3["vMix DeckLink input 3"]
ATEM -->|ATEM direct output 4| VMIX4["vMix DeckLink input 4"]
ATEM -->|ATEM direct output 5| VMIX5["vMix DeckLink input 5"]

VMIX["vMix operator + vMix"] --> SYNC["vMix-ATEM Sync Service"]
SYNC -->|Mirror preview/program state| ATEM
ATEM -->|House Overflow Feed| DIST["SDI-to-HDMI distribution"]
ATEM -->|Multiview| MULTI["Sound-room multiview TV"]
DIST --> LOBBY["Lobby TVs"]
DIST --> NURSERY["Nursery TVs"]
VMIX -->|Program Feed| RELAY["Azure Ubuntu relay server"]
RELAY --> SOCIAL["YouTube / Facebook / SermonAudio"]
VMIX -->|ASL Feed| ASL["ASL YouTube stream"]

PTZ cameras -> ATEM inputs 1-5 -> direct outputs 1-5 -> vMix DeckLink inputs

vMix operator actions -> vMix-ATEM Sync Service -> ATEM House Overflow Feed -> SDI-to-HDMI distribution -> lobby and nursery TVs

vMix Program Feed -> RTMP -> Azure Ubuntu relay server -> YouTube, Facebook, SermonAudio

vMix ASL Feed -> direct stream from vMix -> YouTube

FOH and Livestream audio path

flowchart LR
subgraph stage["Stage and room sources"]
SRC["Most stage sources"]
CONG["Congregational microphones"]
HANDHELD8["Wireless handheld mic receivers x8"]
BODY2["Wireless headset/lapel mic receivers x2"]
end

subgraph foh["FOH audio"]
GX["GX4816 stagebox"]
AVA["Avantis"]
DSP["Front-rack DSP"]
AMP["Amplifiers"]
WILLIAM["William Sound"]
end

subgraph livestream["Livestream audio"]
DANTE["Dante network"]
WING["Behringer Wing"]
USB["Dante USB interface"]
VMIXA["vMix audio input"]
FOHMODE["FOH Source Mode"]
end

subgraph destinations["Destinations"]
HOUSE["Audience speakers + subwoofer"]
MON["Monitor mixes"]
LOBHALL["Lobby / hallway speakers"]
ASSIST["Assistive Listening System"]
OVERFLOW["House Overflow Feed audio"]
end

SRC --> GX --> AVA
HANDHELD8 -- "direct to Avantis local inputs, bypassing GX4816" --> AVA
BODY2 -- "direct to Avantis local inputs, bypassing GX4816" --> AVA
AVA --> DSP --> AMP --> HOUSE
AVA --> AMP --> MON
AVA --> AMP --> LOBHALL
AVA --> WILLIAM --> ASSIST

AVA --> DANTE --> WING
CONG --> WING
AVA -- "FOH mix" --> DANTE --> FOHMODE --> WING
WING --> USB --> VMIXA
WING --> OVERFLOW

Most stage sources -> GX4816 -> Avantis -> House Mix -> DSP -> amplifiers -> audience speakers and subwoofer

8 wireless handheld microphone receivers -> XLR direct into Avantis local inputs (bypassing the GX4816)

2 wireless headset/lapel microphone receivers -> XLR direct into Avantis local inputs (bypassing the GX4816)

Avantis matrix outputs -> lobby/hallway amplifier -> lobby and hallway speakers

Avantis matrix outputs -> William Sound -> Assistive Listening System

Avantis monitor buses -> amplifiers -> Keys / Choir / Wedges / Band / Deaf signer monitor mixes

Digital keyboard -> MIDI over USB -> keyboard iPad (Sunday Sounds) -> audio interface -> passive DI box -> XLR to the sound system

The keyboard audio interface’s headphone output also feeds the keyboard speaker on top of the keyboard.

Avantis tie-lines -> Dante -> Wing -> Dante USB interface -> vMix

Congregational microphones -> ceiling preamp -> Wing analog inputs -> Wing

Avantis FOH mix -> Dante -> Wing aux channel -> FOH Source Mode -> Wing processing chain -> Dante USB interface -> vMix

Wing analog main output -> ATEM -> House Overflow Feed audio

Lighting path

flowchart LR
FOH["FOH Audio or dedicated Lighting operator"] --> LIGHTKEY["Lightkey Mac mini"]
FOH --> RELAY["House-light relay switch bank"]
LIGHTKEY --> FADER["Lighting fader controller"]
LIGHTKEY --> USBDMX["DMX USB adapter"]
USBDMX --> SPLIT["DMX splitter"]
SPLIT --> ZONE1["Choir / stage-lighting section"]
SPLIT --> ZONE2["Main stage-lighting section"]
RELAY --> HOUSELIGHTS["House Lights"]

Lightkey Mac mini + lighting fader controller -> DMX USB adapter -> DMX splitter -> Stage Lighting zones

Audio Booth relay switch bank -> House Lights

Physical control locations

flowchart TB
subgraph balcony_front["Front of balcony"]
AUDIOBOOTH["Audio Booth<br/>FOH Audio<br/>House-light relay switches"]
STAGEDISPLAY["Stage Display<br/>front center of balcony"]
end

subgraph balcony_back["Back of balcony"]
AVROOM["AV Room<br/>Livestream Audio<br/>Livestream Video (vMix)<br/>Projection (ProPresenter)"]
end

subgraph room_front["Front of auditorium / stage area"]
FRONTRACK["Front rack<br/>GX4816 / DSP / amplifiers"]
DMX["DMX splitter"]
PROJECTORS["Projectors"]
end

subgraph room_space["Auditorium space"]
CAMERAS["PTZ cameras"]
SIGNER["Deaf signer position and camera"]
end

AUDIOBOOTH --- AVROOM
AUDIOBOOTH --- FRONTRACK
AVROOM --- FRONTRACK
AVROOM --- PROJECTORS
AVROOM --- STAGEDISPLAY
FRONTRACK --- CAMERAS
DMX --- FRONTRACK
SIGNER --- CAMERAS

Signal Flow

Projection

The ProPresenter operator decides whether content should be shown as full-screen Audience View or as Lower Thirds. Songs and Bible verses use Lower Thirds. Everything else uses the full-screen Audience View.

Livestream Video

The Livestream Video operator uses vMix as the primary live-switching surface for the livestream. The ATEM mainly distributes camera and ProPresenter sources into vMix, while Mix Effect 2 on the ATEM creates the House Overflow Feed for the lobby and nurseries.

Livestream Audio

The Livestream Audio operator mixes on the Wing. Most sources arrive from the Avantis through Dante tie-lines, while the congregational microphones come directly into the Wing through analog inputs after a ceiling preamp. The Wing then sends its main output to vMix over Dante and also provides an analog output to the ATEM for the House Overflow Feed.

When no Livestream Audio operator is present, the vMix operator can switch the Wing into FOH Source Mode so the FOH mix becomes the source for the livestream path while still passing through the Wing’s downstream processing.

FOH Audio

The Avantis creates the House Mix for the room and also provides matrix outputs for lobby/hallway speakers and the Assistive Listening System, monitor mixes for platform participants, and Dante feeds for the Livestream Audio Console.

Lighting

Normal services use simple lighting presets and are usually handled by FOH Audio. Larger events may use a dedicated Lighting operator, more detailed preset groupings, color changes, and cue lists. When a dedicated Lighting operator is present, they also control the House Lights.

Pre-Service Checks

Projection (ProPresenter)

  1. Ensure the ProPresenter application is running.
  2. Compare the ProPresenter playlist with the paper service order.
  3. Confirm all songs, Bible verses, sermon slides, videos, and other needed content are present.
  4. Verify slide actions are configured correctly, including Stage Display layout changes and Lower Thirds actions for songs and Bible verses.

Livestream Video (vMix)

  1. Confirm all cameras are on.
  2. Set camera movement and zoom speed to a level the operator can control cleanly; many operators use 8 for both.
  3. Review the paper service order so the operator understands the service flow.
  4. Before the 5-minute mark, use Stream Deck -> Utilities to schedule New CBC Stream, then New ASL Stream a few seconds later.
  5. Confirm in YouTube Studio that the correct streams are scheduled, remove duplicates if needed, and rename special services when appropriate.
  6. Verify that FOH Source Mode is actually in the intended state on the Wing and, if needed, toggle the button on and back off to re-sync the Stream Deck indicator with the real console state.
  7. Around 5 minutes before service, start the stream from the Stream Deck.
  8. About 30 seconds before service, confirm that Audio Dante Receive is showing movement and that the feed has switched from pre-service music to the live service audio.

Startup

AV Room

  • The vMix and ProPresenter computers usually remain on 24x7, so normal operation is based on pre-service checks rather than power-up.
  • The Avantis must be on before the Wing can receive its Dante audio sources.
  • Studio monitor speakers for Livestream Audio should be turned on only after the Wing is fully booted to avoid speaker pops.

FOH Audio

The FOH system uses a power sequencer. In general, the turn-on order is:

  1. Avantis
  2. Wireless microphone receivers (8 handheld, 2 headset/lapel)
  3. GX4816 stagebox
  4. DSP
  5. Amplifiers

Shutdown

AV Room

  • Turn off the Livestream Audio studio monitors before powering down the Wing to avoid speaker pops.

FOH Audio

  • Use the FOH power sequencer for shutdown; the order is the reverse of startup.

Common Failures and Troubleshooting

Symptom Likely cause First response Escalate when
No dedicated Livestream Audio operator is available No one is staffing the Wing directly vMix operator switches the Wing into FOH Source Mode The FOH source still does not reach vMix correctly
FOH Source Mode appears off on the Stream Deck, but the Wing is still behaving as if it is on The Stream Deck indicator is out of sync with the actual Wing state Toggle FOH Source Mode on and back off again to re-sync the control state The Wing still does not return to the expected input source after re-syncing
Stream 1 fails the first time the operator starts the main livestream for the day The first start attempt in vMix commonly errors for the main stream Try starting Stream 1 again; it normally works on the second attempt The second attempt also fails or YouTube still does not show the stream as live
Projectors do not turn on automatically before service The scheduled projector power-on does not always fire correctly Use the All Projectors On button on the Projection Stream Deck, then wait a minute or two The projectors still do not turn on and the operator must use the on-stage IR remote
The pastor’s headset microphone pops The mic is too close to the mouth or nose, or the headset cable is failing Check and adjust placement first; if that does not fix it, replace the headset cable to the belt pack Popping continues after placement adjustment and cable replacement
Moving the lighting faders does not change the lights Lightkey is not running, the wrong Lightkey control panel is active, or the USB controller needs to be reconnected Confirm Lightkey is running, confirm the normal default control panel is selected, then unplug and reconnect the USB controller if needed The controller still does not affect the lights after those checks
The Livestream Audio monitor speakers are very quiet even though the Wing meters look correct The monitor speaker volume knob is turned down Turn up the monitor speaker volume knob The monitors remain too quiet even after the knob is turned up

Training and Notes

  • FOH Audio and Lighting are often combined in normal services but should still be documented as separate systems.
  • The dedicated Lighting role is mainly needed for more complex events such as concerts and cantatas.
  • Camera presets are normally triggered from the Stream Deck through Bitfocus Companion, but the Canon RC-IP100 controller is available for manual moves when no preset fits.
  • The Auditorium uses two separate networks: a Dante-only TP-Link switch for audio transport and a UniFi network for PTZ control, ATEM control, and general AV device management.
  • The Projection Stream Deck is connected to the ProPresenter computer, but its Bitfocus Companion actions are backed by a Companion instance running in Docker on an Ubuntu VM hosted in Hyper-V on a Windows server in the server room.
  • The broader cross-room Companion architecture, room-to-room dependencies, and successor-facing operational notes are documented in Bitfocus Companion Cross-Room Reference.
  • Camera 4 is commonly used for congregation shots, band shots, and side angles on the preacher.
  • The deaf signer camera is used only for the signer and is a core part of the ASL Feed.
  • The House Overflow Feed is distributed through an SDI-to-HDMI conversion/distribution path before it reaches the lobby and nursery TVs.
  • The sound room also has an ATEM multiview confidence monitor that is separate from the public-facing overflow TVs.
  • Wednesday services commonly use FOH Source Mode, so Sunday operators should explicitly verify that it has been returned to the expected state.
  • The Livestream Audio monitor-speaker volume knob is toward the top left of the Wing console.