Check your LTC before the show.
LTC Check analyses SMPTE/LTC WAV files for timecode jumps, missing frames, decode dropouts and signal problems - before you load the file into a live rig.
- Frame rate
- 25 fps
- Start
- 01:00:00:00
- End
- 02:02:14:21
- Frames checked
- 93,372
No continuity errors found.
Forward jump detected
- Expected
- 01:14:38:18
- Received
- 01:14:39:04
14 frames skipped.
What LTC Check detects
LTC Check decodes every frame in the file and reports problems that matter to playback, video and show-control systems.
- Missing / skipped frames
- Duplicate frames
- Backward timecode jumps
- Unexpected forward jumps
- LTC decode dropouts
- Frame rate detection
- Drop-frame / non-drop-frame mode
- LTC start / end time
- Signal level and clipping
- Audio format and sample rate
Who it's for
Anyone whose show, playback rig or video system is driven by an LTC or SMPTE timecode WAV file.
Playback & touring
Touring musicians, playback engineers and show-control programmers checking backing-track or click timecode before doors.
Video & lighting
Resolume users, lighting programmers and video technicians validating the timecode WAV that syncs cues to picture.
Theatre & broadcast
QLab and Ableton Live users, theatre technicians and broadcast/video engineers verifying timecode continuity in a delivered file.
How it works
No accounts, no upload. Drop in a file and read the report.
- Open LTC Check
- Drop in an LTC WAV file
- View the validation report
Privacy
Your audio never leaves your computer. LTC Check performs analysis locally, on your Mac. Files are not uploaded anywhere to be checked.
Pricing
A specialist utility, priced like one.
£19 one-time
- LTC Check for macOS
- No subscription
- Files analysed locally
- Download link emailed to you
Frequently asked questions
What is LTC Check?
LTC Check is a macOS desktop application that analyses LTC (SMPTE Linear Timecode) WAV files and reports whether the timecode is continuous, including frame rate, start/end time, and any jumps, dropouts or missing frames it detects.
Can LTC Check detect missing frames?
Yes. LTC Check decodes every frame in the file and flags missing, skipped or duplicate frames along with the position and duration affected.
Can LTC Check detect timecode jumps?
Yes. LTC Check reports both backward jumps and unexpected forward jumps, including the expected and received timecode at the point of the jump.
Does LTC Check generate LTC?
No. LTC Check is a validator, not a generator. It is built to check existing LTC/SMPTE timecode WAV files before you use them, not to create new timecode.
Does LTC Check upload my WAV file?
No. LTC Check analyses files locally on your Mac. Your audio never leaves your computer.
What frame rates does LTC Check support?
LTC Check detects 24fps, 25fps, 29.97fps and 30fps LTC, and identifies drop-frame vs non-drop-frame mode.
Can I use LTC Check with Ableton or Resolume?
Yes. LTC Check is designed to check the timecode WAV files used to drive playback in Ableton Live, Resolume, QLab, lighting consoles and other show-control or broadcast systems, before you load them into those systems.