Open a source's settings#
Open Recording (or the Experiment source matrix on Experiments).
Find the source in Data sources. Use Search sources to jump to it.
Click + Settings on its row. The panel opens beneath the row with the provenance badge first; click − Settings to close it.
Source catalog#
The catalog is built from discovered devices plus every telemetry channel a backend actually produced. Fixed sources:
| Source | Records | Class |
|---|---|---|
| Microphone | Raw audio, digital full scale (mono mix) | Direct |
| Microphone RMS | Trailing RMS level (~6.7 Hz) | Derived |
| Microphone Spectrum | Periodic Welch spectra (when enabled) | Derived |
| Speaker | The exact stimulus samples submitted to the output | Direct |
| Camera Video | Raw RGB8 frames | Direct |
| Optical Pulse Signal | ROI mean green (0–1) | Derived |
| Optical Pulse (Candidate) | Candidate pulse in bpm | Physiological measurement |
| Screen Stimulus | Log of every rendered stimulus frame | Direct |
| Keyboard / Mouse / Touch Screen | Window input events | Direct |
| Game Controller | Buttons and axes | Direct |
| Haptic Controller | Rumble command log | Direct |
| Serial Interface | Received and transmitted bytes | Direct |
| HID Input Reports | Raw reports from one selected device (opt-in) | Direct |
| Bluetooth Signal Strength | BLE advertisement RSSI (opt-in) | Direct |
| RTL-SDR Spectral Survey | Averaged PSD per tuning window (opt-in) | Derived |
| RTL-SDR RF Features | 17 features per window (opt-in) | Derived |
| RTL-SDR IQ Snippets | Raw 8-bit IQ, lossless (opt-in) | Direct |
| Multimodal Synthesis | Interval summaries with missingness and lineage | Derived |
| Raw Input Events | Kernel-timestamped evdev streams (Linux) | Direct |
| Telemetry channels | Wi-Fi, motion sensors, CPU, GPU, memory, battery, storage, temperatures, fans, backlight… one row per channel | Direct |
Settings by source type#
Microphone Input device, rate, spectrum, RMS window
- Input device — System default or a specific endpoint (remembered by a stable ID; a missing device shows “(not present)”).
- Sample rate — Device default or 8000, 16000, 22050, 44100, 48000, 88200, 96000, 192000 Hz. An unsupported rate is reported as an error; NOESIS never substitutes another rate or device.
- All input channels are averaged to mono. Set input gain in the OS mixer.
- Record derived spectrum (Welch PSD) — when ticked: FFT size (256–16384), min / max frequency Hz and spectrum interval s (0.1–10).
- Advanced — fixed chunk size, supported input formats, and RMS window (samples) (512–48000) for the derived RMS level.
Speaker Output device, rate
Output device and Sample rate as for the microphone. Whenever an experiment drives the speaker, the exact submitted samples are logged.
Camera Video and Optical Pulse Signal Index, format, stride, ROI
- Camera index, requested resolution (320×240, 640×480, 1280×720, 1920×1080) and frame rate (5, 10, 15, 30, 60 fps). The driver picks the closest supported format; the actual format is logged when the camera opens.
- Record every Nth frame (1–30) thins the stored video. Acquisition and ROI analysis still use every frame.
- Optical ROI — x, y, width, height as fractions (0–1) of the frame. It is drawn on the Live Monitor preview.
- The amber line shows raw video bandwidth before stride; video is stored uncompressed.
Telemetry channels Poll rates, rate cap, processing
- Shared poll rate for the channel's group: Wi-Fi poll rate (0.5–20 Hz), Motion sensor poll cap (1–200 Hz; the sensor's own rate is used when lower) or System telemetry poll rate (0.5–20 Hz).
- Recording rate cap — every acquired sample or ≤ 0.5, 1, 2, 5, 10, 50, 100 Hz.
- Processing — Raw, Filtered or Raw + Filtered. Filtered output is a separate derived channel; raw values are never modified.
- With filtering: low-pass smoothing τ (0–10 s). Vector sensors add high-pass baseline τ (0–60 s) and, under Advanced · offset correction, per-axis x/y/z offsets subtracted before filtering. With no filter configured, the filtered channel is not produced.
Keyboard Key identities
Record key identities — when off, key events are timestamped but the key is redacted. Only keys pressed while the NOESIS window has focus are seen.
Derived sources RMS, spectrum, pulse
Derived sources are computed from their parent in the analysis worker (~6.7 Hz). The parent must be monitored or recorded.
RTL-SDR sources and Multimodal Synthesis
Configured in RTL-SDR survey & Synthesis settings on the Recording page. See RTL-SDR survey settings and Synthesis settings.
Record vs live monitor#
A source is acquired when either switch is on. Record writes it to the session; Live monitor shows it on screen. Turning both off stops that device's producer entirely, which saves CPU and USB bandwidth.
Technical details#
Tick Show Technical Details in the filter bar (or in Settings) to add a collapsible block to each source with its source key, device ID, backend, driver detail, raw channel name, units and provenance class.