Noise record · resident report · section 3
12 Elm Street, Brunswick VIC 3056 · 9 Oct – 6 Nov 2026 · levels rounded to the nearest dB(A)
Verification code NR-7K2M-4Q
Each instrument is reported separately
Levels from the two instruments are reported separately and are never averaged together. The Class 1 table comes first because it is the grade councils use; the calibrated-microphone table is a resident measurement, not a certified one.
Svantek SV 971A, serial 98211, hired; calibration certificate 12 Sep 2026 (appendix B). Field check with a 94.0 dB calibrator before and after each session; largest drift 0.1 dB. Meter on a stand in the main bedroom, 1.2 m high, 1 m from the shared wall, windows closed unless flagged.
| Date | Episode | Average | Background | Loudest | Flags |
|---|---|---|---|---|---|
| Fri 30 Oct | 22:20 – 23:05 (45 min) | 57 | 40 | 66 at 22:41 | None |
| Sat 31 Oct | 21:40 – 00:30 (2 h 50 min) | 59 | 41 | 69 at 23:17 | Wind 3 m/s (weather service) |
| Mon 2 Nov | 22:40 – 23:30 (50 min) | 61 | 40 | 71 at 22:55 | Loudest in the record |
| Wed 4 Nov | 20:15 – 20:45 (30 min) | 52 | 43 | 60 at 20:22 | Window open (resident entry) |
| Thu 5 Nov | 23:10 – 23:50 (40 min) | 56 | 39 | 65 at 23:31 | None |
5 events in 7 nights; 2 quiet nights (1 Nov, 3 Nov). Background for each row is the quietest 15 minutes of the same night, measured by the same instrument.
Dayton iMM-6C, serial 6C-048213, on an iPhone 15 Pro, using the microphone's own calibration file and checked against a 94.0 dB calibrator before and after each session (largest drift 0.3 dB). Published tests put this method within about 1 to 2 dB of a Class 1 meter. It is not a certified IEC 61672 instrument.
| Date | Episode | Average | Background | Loudest | Flags |
|---|---|---|---|---|---|
| Fri 9 Oct | 22:10 – 22:50 (40 min) | 55 | 42 | 63 at 22:31 | None |
| Sat 10 Oct | 22:05 – 23:15 (1 h 10 min) | 57 | 41 | 66 at 22:48 | None |
| Mon 12 Oct | 23:38 – 00:19 (41 min) | 58 | 41 | 68 at 23:40 | Loudest on this instrument |
| Tue 13 Oct | 22:14 – 22:26 (12 min) | 50 | 42 | 58 at 22:19 | None |
| Fri 16 Oct | 22:30 – 23:20 (50 min) | 56 | 40 | 64 at 22:52 | Handling 22:33 (6 s excluded) |
| Sat 17 Oct | 23:50 – 01:10 (1 h 20 min) | 57 | 40 | 66 at 00:24 | None |
| Fri 23 Oct | 22:45 – 23:30 (45 min) | 54 | 41 | 62 at 23:04 | None |
| Sat 24 Oct | 20:30 – 22:40 (2 h 10 min) | 55 | 44 | 65 at 21:48 | Interruption 21:12–21:15 (gap) |
Events 1–8 of 14 on this instrument; events 9–14 continue on page 7. Background for each row is the quietest 15 minutes of the same night on the same microphone.
Definitions. Average (LAeq) is the level over the whole episode, as if the sound had been steady. Background (LA90) is the level present 90% of the time in the quiet reference period. Loudest (LAFmax) is the single loudest moment, with the time it happened. All values are A-weighted decibels, rounded to the nearest dB. A flag means something about the recording that a reader should know; flagged seconds are excluded from the average, never filled in.
No noise limit is applied on this page. Whether a level is "unreasonable" is a judgement for the council under Victoria's Environment Protection Act 2017; this report supplies the record only.
Generated by [APP NAME]. Phone-based measurements are indicative unless marked otherwise. Not a certified noise assessment. Not legal advice.
Verify: [APP DOMAIN]/verify · NR-7K2M-4Q · Page 6 of 16