STAGE 3 · multi_device_sync_confidence
Multi-device sync quality
Confidence that video, IMU, heart-rate and optional 3D streams share a usable session timeline.
- Unit
- 0_to_1
- Category / visibility
- data_quality · system_quality
- Capture
- 多设备时间戳 · 共同校准事件
- Compute
- iOS Beta · PC
- Display
- PC · Web
- Measurement methods
- timestamp_alignment · calibration_event · residual_error
- Model
- sensor-sync-v1
What this metric measures
Synchronisation confidence describes timing alignment between sources. It is separate from signal quality and must be stored with the offset and method used.
How Trampoline Lab calculates it
Supported workflows align timestamps through shared start events, device clocks or explicit calibration, then evaluate residual timing error and missing intervals.
How to interpret it
Low synchronisation confidence should reduce or suppress fusion metrics such as impact transmission and sensor-confirmed phase timing.
Limits and responsible use
Clock drift, wireless loss and unknown recording offsets can create apparently plausible but incorrect fusion.
Implementation contract
Related metrics
Method references
TOPDMS Trampoline Lab metric contract and current client implementation evidence.
Related courses and products
Signed-in members can see current eligible Catalog recommendations. Article definitions never hard-code commercial items.
Metrics to watch →Stable report link
https://x-jump.com/lab/metrics/multi-device-sync/No athlete, session or result data is included in this URL.