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IMPORTANT DISCLAIMER: Measurement Calibration Required
Device microphone sensitivity varies significantly (±5-10 dB).
• Click the 🎚️ Calibrate button to improve accuracy to ±3 dB
• Noise ordinance limits displayed here are ESTIMATES ONLY
• For noise documentation requiring certified accuracy, use professional equipment
• ALWAYS verify with your local authorities before taking legal action
Record noise levels, measure decibels, and generate professional PDF reports for complaints. Works offline, no sign-up required. Covers 27 US cities with noise ordinances.
100% Local ProcessingDocumentation ReportsUS Cities Only
Evidence Collection
Zone: 🏠 ResidentialDay: 70 dBNight: 50 dB
Current limit: 45 dB (Day)
👆 Use floating buttons below for quick actions
Noise Level Analysis
What is Noise Evidence Recorder?
A powerful tool that transforms your smartphone into a noise monitoring tool for US cities. When you're dealing with persistent noise issues, having documentation can make the difference between being heard and being ignored.
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For US Tenants & Residents
Document noise complaints against neighbors, landlords, or building management. Get the evidence you need for formal complaints, lease violations, or legal action in US housing courts.
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For Construction & Industry
Monitor and document noise levels to ensure compliance with local US ordinances. Generate reports for permits, inspections, or community relations.
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For US HOA & Property Managers
Enforce community noise rules with measurable evidence. Document violations for warning notices, fines, or formal proceedings.
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For Legal Professionals
Generate documentation reports for noise complaints and reference. Reports include timestamps, location data, and legal ordinance references. Note: This tool uses consumer-grade equipment and may not meet professional certification requirements.
How It Works
Generate noise evidence instantly, with clear recording steps
1
Select City
Choose your location to match local noise ordinance limits
2
Record Audio
Start recording or upload existing audio files
3
Analyze Data
View real-time noise levels and detected violations
4
Export PDF
Generate documentation report for noise complaints
Understanding Noise Evidence Documentation
Noise evidence documentation captures decibel readings over time, comparing them against municipal noise ordinances to create documentation for noise complaints and property disputes.
When should you use this noise evidence recorder?
- 🏠Documenting late-night noise from upstairs or adjacent neighbors disrupting your sleep
- 🏗️Recording construction work that violates local noise ordinance hours
- 🔊Proving noise violations for landlord complaints or housing court cases
- 🎵Collecting evidence for police complaints about loud music or parties
- 🚚Documenting street noise from trucks, motorcycles, or traffic exceeding limits
- 🏢Verifying noise levels for business license applications or compliance reports
Frequently Asked Questions
What units are used for noise measurement?
This tool measures noise in decibels (dB), which is the standard unit for sound intensity used by local noise ordinances and legal compliance worldwide. The decibel scale is logarithmic, meaning a 10 dB increase represents a 10-fold increase in sound intensity. This tool uses A-weighted decibels (dBA) to match how humans perceive loudness.
How long should I record for?
Record for at least 30 seconds to capture representative noise levels. For stronger evidence, record during the noise peak times, typically evenings and weekends.
How accurate is the noise measurement?
Uncalibrated: ±5-10 dB accuracy. After user calibration: approximately ±3 dB. Professional sound level meters provide ±1-2 dB accuracy with NIST-traceable certificates. For certified measurements, consider professional equipment.
How do I calibrate my device?
Click the 🎚️ Calibrate button. Choose a calibration method (built-in tone, external reference, or known environment), then adjust the offset until the reading matches the reference level. Calibration is saved locally and applied to all future measurements.
Is this measurement legally admissible?
This tool is useful for documentation and initial noise complaint filing. However, for court proceedings requiring NIST-traceable calibration, you should use professional sound level meters. Always consult with legal professionals for guidance on certified measurements in your jurisdiction.
Important Usage Tips
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What if no microphone is detected?
Ensure a microphone is connected and permissions are granted in your browser settings. Try refreshing the page or using a different browser.
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What happens with zero/noisy input?
In very quiet environments (near 0 dB) or extremely loud situations (above 100 dB), measurements may be less accurate. Move closer to the noise source for better results.
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Mobile device considerations
Phone cases may affect microphone performance. Remove the case or use headphones for better audio pickup during recording.
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Supported measurement range
This tool measures approximately 0-120 dB. For reference, whispering is 30 dB while a rock concert can exceed 110 dB.
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Recording duration recommendations
Minimum 30 seconds recommended for valid evidence. Longer recordings (1-3 minutes) provide stronger legal documentation.
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PDF generation limit
Free users can generate up to 10 PDF reports per day. Additional reports may be available the next day.
Also Known As
You may also see this tool referred to as a noise complaint tool, decibel meter app, sound level recorder, noise evidence collector, audio decibel analyzer, noise violation tracker, or sound measurement device.