Measurement data
The measurement page looks the same in SPL Sense and in SPL Cloud. What is described here applies to both; differences in the reports are listed at the end.
Measurement days and chart
The data is organized by measurement days; a measurement day ends at the measurement’s day boundary. Each day shows the values of the value profile, coloured according to the thresholds: yellow for Notification, orange for Warning, red for Limit. Show all days displays older days.
The chart shows the course of the selected day:
- the values of the value profile as lines, the rating as a coloured band
- comments and events as markers
- excluded time ranges greyed out
- with an active leveler, also the signal level (line), the gain reduction and the correlation
The first values appear after the first full minute of recording.
Interval details
A click into the chart opens the details of the minute at that point (an interval): all values, the spectrum in third-octave bands and the check results. Use the arrows to move to the previous or next minute.
| Indication | Meaning |
|---|---|
| Signature valid | The data is unchanged since the sensor signed it. |
| Signature invalid / Validation block missing | The data cannot be proven to be unchanged. |
| Calibration expired | The data was recorded with an expired calibration. |
| Clip | The level was too high for the sensor (overload). The values of this minute are not reliable. |
| Low Values | The level was below the sensor’s measuring range. |
| Temperature | The sensor was too hot. |
| Voltage | The sensor’s supply voltage was too low. |
| Weather Protection | The compensation filter for the weather protection was switched on. |
| Multiple Sensors Used | The sensor was changed in this minute. |
Deviations
The Deviations section lists, per value of the value profile, when the selected day exceeded a threshold, with the highest value. A click on an entry draws the thresholds into the chart.
Events
The Events section lists everything that happened with the measurement, newest first:
- recording started and stopped, with reason (for example manually, autonomous mode, microphone disconnected, sleep mode, sensor reconnected)
- measurement created, activated, completed, re-opened
- offsets, value profile and leveler settings changed, each with the old and new values
- leveler bypassed and re-enabled
- comments and changed excluded time ranges
If a change came via SPL Cloud or the API, this is indicated; for the cloud, also by whom.
Comments
With Add › Add comment in the Events section you record something at a point in time, for example “Encore” or “Offset checked with handheld meter”. Comments appear in the chart and can be edited later. For a completed measurement, comments are only possible up to the time of completion.
Excluding time ranges
Some periods should not be included in the rating, for example tuning the system with pink noise before doors open. With Add › Exclude a time range you define such a range with From, To and a comment.
An excluded range:
- is greyed out in the chart and marked Not counted
- does not count for maxima, the rating according to the value profile and the deviations
- is kept with all measurement data
Count again? removes the exclusion. Every change appears in the events.
Reports and exports
| What | Where |
|---|---|
| Day report (PDF) of the selected day | PDF button next to the day |
| CSV of the selected day | CSV button next to the day |
| CSV of the whole measurement | Measurement menu › Export all measurement days to CSV |
| whole measurement as a backup | Export measurement, see Measurements |
In SPL Cloud, the day report (also with deviations) and a pictures report are available with Pro.
Cloud uplink
If the cloud uplink is switched on, the measurement page shows the upload status: Online, Offline and how many intervals, events and leveler statistics are still waiting for upload. Without internet, SPL Sense keeps measuring normally and catches up with the upload.