Trinet Mono¶
Trinet Mono is a single ultra-wide camera that records 1080p video, motion data and stereo audio on one shared clock. It records on its own to a memory card, streams live over USB to an Android phone, a computer or an iPhone, and can join other Trinet cameras in a synchronized kit.
Specifications¶
These values are for the current Trinet Mono (hardware version V4) with current firmware. Earlier versions are listed below.
| Video | 1920×1080, 30 fps |
| Codec | H.264 (default) or H.265 for card recordings; live USB stream is H.264 |
| Card bitrate | Variable, about 15 Mbps by default; adjustable in the Trinet app |
| Storage | About 7 GB per hour at default settings |
| Lens | Ultra-wide fisheye; effective field of view about 139° horizontal × 73° vertical (from calibration) |
| Frame timing | Every frame timestamped at the middle of its exposure, on the camera clock |
| Motion sensing | 3-axis accelerometer (±8 g), 3-axis gyroscope (±2000 °/s) at 400 Hz; 3-axis magnetometer at about 100 Hz |
| Audio | Stereo microphones, AAC, 48 kHz by default (16, 44.1 or 48 kHz selectable) |
| IMU–video alignment | Sub-millisecond, hardware-timestamped |
| Recording to card | One button; up to 8 hours per take (the take is then saved automatically) |
| Live streaming | USB webcam mode (Android, computer) and iPhone mode |
| Wireless | Multi-camera sync; recording-status broadcast readable by the Trinet app |
| Calibration | Reference (batch) calibration for the model; per-unit calibration available as a service |
| Power | USB-C, 5 V |
What you get in a recording¶
A card recording is a set of files that belong together: the video (.mp4), the motion data
(.imu) and the per-frame timestamps (.vts). The video file also carries the camera's identity
and calibration. See Files on the card and
File formats.
Heat¶
During long recordings in warm conditions the camera may reach its temperature limit. It then saves the current take and pauses; the light stays blue. Once it has cooled, recording resumes by itself as the next part of the same session. See Heat and thermal protection.
Earlier versions¶
| Version | What's different |
|---|---|
| V1, V2 | Original Trinet. ~180° lens. Motion data at about 560–570 Hz, no magnetometer data, no audio. |
| V3 | Adds a live magnetometer and 400 Hz motion data. Shipped with a ~180° or a ~150° lens. No audio. |
| V4 (current) | Adds stereo audio and mid-exposure frame timing. ~150° class lens. |
All versions work with the current Trinet app, SDK and Python toolkit; features a camera doesn't have are simply not offered. To find your version, see Which camera do I have?