Sample data files
ZMax data + autoscoring results
This is the most comprehensive ZMax data archive. It includes:
- all EDF files acquired by ZMax with the external nasal sensor.
- the results of autoscoring, i.e. the hypnogram and all extracted features.
- real time REM detection result markers (REM.mrk)
- some real time sleep apnea detection result markers (mymarkers*.mrk) - these were obtained with the ApneaDetector.js script
- this archive only has ZMax data. Scroll to the next section if you want to download concurrent PSG data for comparison.
After extracting, use HDScorer to open the files (available in the downloads section).
Download EDF and feature files (46 MB)
(Do you need an EDF file viewer or MATLAB EDF import functions?)
PSG COMPARISON FILES
Download this archive if you want to compare ZMax data with data from a gold standard PSG system. This archive contains two folders. The folder "Gold standard PSG files" contains a single multi-record EDF file acquired with a Vitaport PSG system. The folder "Hypnodyne files" contains the ZMax raw data EDF files obtained in "memory card storage" mode. The ZMax EDF files are listed below.
| EEG L.edf | EEG left channel (Fp7-FPz) |
| EEG R.edf | EEG right channel (Fp8-FPz) |
| dX.edf | Accelerometer X axis |
| dY.edf | Accelerometer Y axis |
| dZ.edf | Accelerometer Z axis |
| BATT.edf | Battery voltage |
| BODY TEMP.edf | Skin temperature at forehead |
| LIGHT.edf | Room illumination (unit-less) |
| NOISE.edf | Noise magnitude (unit-less) |
| OXY_IR_AC.edf | Forehead PPG |
| OXY_IR_AC_PARSED.edf | Forehead PPG after processing and filtering |
| HR.edf | Heart rate (computed from PPG signal) |
This archive does not include the following files:
| NASAL L.edf | Left nostril respiration (nasal sensor only) |
| NASAL R.edf | Right nostril respiration (nasal sensor only) |
| OXY_DARK_AC.edf | Oximetry dark AC component (nasal sensor only) |
| OXY_IR_DC.edf | Oximetry IR DC component (nasal sensor only) |
| OXY_R_AC.edf | Oximetry red AC component (nasal sensor only) |
| OXY_R_DC.edf | Oximetry red DC component (nasal sensor only) |
| ROOM C.edf | Room temperature (wireless recording mode only) |
| RSSI.edf | Radio signal strength (wireless recording mode only) |
(Do you need an EDF file viewer or MATLAB EDF import functions?)
Nasal sensor files
This is a sample of the 'additional' EDF files made available by ZMax when the external Nasal/SpO2 sensor is connected:
| NASAL L.edf | Left nostril airflow |
| NASAL R.edf | Right nostril airflow |
| OXY_DARK_AC.edf | Oximetry dark AC component |
| OXY_IR_AC.edf | Oximetry IR AC component |
| OXY_IR_DC.edf | Oximetry IR DC component |
| OXY_R_AC.edf | Oximetry red AC component |
| OXY_R_DC.edf | Oximetry red DC component |
The SpO2 envelope is generated by HDScorer from the various OXY*.edf files.
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