Timecode

For the whole timecode story — what to feed ShowRevue, how it locks, and how playback follows it — see Timecode. This page is the tab itself.

The tab is split into two sub-tabs: Input (reading timecode while you record) and Output (sending the recording's timecode back out during playback).

At the top of the Input tab: the live timecode, whether it's locked, the detected frame rate, and which source is driving it.

LTC Audio

The primary source — always preferred when the signal is locked.

• Device and Channel — which input the LTC arrives on. Locked while recording. Choosing them here is what opens the decode stream; you don't need to configure an audio track for LTC.
• Treat 30 fps as 29.97 (NTSC) (on) — 29.97 and 30 fps look identical in non-drop LTC. Leave it on unless your source is genuinely 30.000 fps.
• Freewheel (0–5 s) — on a brief dropout, keep counting at the detected rate for this long before showing weak/no signal. Steadier on noisy feeds.

Network sources

sACN, Art-Net and MTC are Capture-level features.

• sACN / E1.31 — Universe (ETC Eos defaults to 63999) and Interface. On a multi-homed Mac with a separate lighting NIC, pick that NIC: the multicast join otherwise follows the default route to the wrong interface and nothing arrives. UDP 5568, start code 0xD5.
• Art-Net Timecode — UDP 6454, opcode 0x9700. Unicast or broadcast. grandMA3: Timecode → ArtNet; ETC Eos: Settings → Network → ArtNet Timecode.
• MIDI Timecode (MTC) — quarter frames from any CoreMIDI source. Network MIDI sessions work with no extra setup.
• disguise (d3) — uses disguise's timecodeposition feedback. Enable disguise first under Media Servers.

Source Priority

Fixed, and not reorderable:

1. LTC Audio — used whenever the decoder is locked
2. sACN / E1.31
3. Art-Net
4. MIDI Timecode
5. disguise — last, and only when nothing above is locked

Network sources carry a small receive delay (typically under a frame). Fine for display and monitoring; use LTC for recording sync.

Output

Timecode Output is a Capture-level feature, like the network timecode inputs.

Everything below lives on the Output sub-tab. While a recording plays back, chase-drive consoles and media servers with its timecode — see the Timecode Output guide for the full workflow. Playback only — nothing is sent live. The card header shows a green SENDING dot while emitting, or Waiting for playback… when enabled but idle.

• Art-Net — ArtTimeCode on UDP 6454.
• sACN (E1.31) — UDP 5568.
• MTC — virtual MIDI source "ShowRevue Timecode" — quarter frames; subscribe from any CoreMIDI-capable app or console. Needs no network settings.

With Art-Net or sACN enabled:

• Destination — Broadcast / Multicast reaches the whole LAN; Unicast to IP targets one device (an IP field appears).
• Interface — which NIC the packets leave on. Automatic (default route) suits a single-network Mac; on a rig with a separate lighting NIC, pick that interface so broadcast and multicast actually reach the console.
• sACN universe — shown when sACN is on; match the receiver.

Output follows the recording's own rate and drop-frame flag (stored in its sidecar at record time). Supported rates: 24 / 25 / 29.97DF / 30 — anything else pauses output with a note in this card.