ConstructionSearch for noise sources

Finding noise sources in buildings

Detecting sound transmission through building envelopes: visualization of the acoustic field with the NAC-PA camera and analysis of stored materials in Aura SVS.

What can insufficient sound insulation lead to?

≈404 thousand rubles/yearApartment: A notional estimate of the loss of productivity and additional expenses for a family of three.

≈4.1 million rubles/yearA 20-employee office: a model of reduced productivity and additional costs due to staff turnover.

≈10.2 million rubles/yearA 50-room hotel: a scenario for reducing occupancy, room rates, and guest compensation payments.

These are approximate scenarios based on source data, not actual losses at the surveyed facility or verified savings. Calculations depend on assumptions regarding noise impact, revenues, and occupancy; the results from different scenarios are not cumulative.

About the project

Client: Research Institute
Industry: Construction industry
Object: Enclosing structures and building openings
The task: Search for noise sources and sound transmission areas
Equipment: NAC-PA
Software: Aura SVS

Task: determine where the sound goes

When studying sound insulation, it was necessary to localize the areas through which sound from the adjacent room entered the area under study. Particular attention was paid to doorways, structural joints, and areas where they adjoin.

Knowing the location of such areas helps to clarify the scope of further inspection and select noise reduction measures. The cause may be related to joints, leaks, or sound transmission through adjacent structures.

The purpose of acoustic visualization is to show the spatial location of sources and areas of increased sound radiation for subsequent examination.

Solution: Visualizing Sound Transmission

A portable NAC-PA acoustic chamber and Aura SVS software were used for the survey. A noise source was placed in an adjacent room, and the enclosing structures were inspected from the room being surveyed.

The acoustic map helped identify areas of increased sound emission and associate them with building elements. Recordings were saved for detailed analysis and report preparation.

Visualization complements sound insulation measurements: it helps to localize problem areas, and a quantitative assessment of the structure's characteristics is carried out using the appropriate measurement methodology.

Локализация участка повышенного звукового излучения в верхней части дверного проёма — Localization of the area of increased sound radiation in the upper part of the doorway

How was the examination conducted?

1 · Preparation

Noise source in an adjacent room

A sound field was created on the other side of the structure being examined and testing zones were defined.

2 · Examination

Scanning of structures

The NAC-PA camera inspected the walls, doorway and areas where building elements adjoin.

3 · Localization

Highlighting problem areas

Using the acoustic map, we identified areas of increased radiation and recorded their position on the image.

4 · Analysis

Recordings and reporting in Aura SVS

The saved materials were used to study the acoustic picture and prepare a report with reference to the structures.

Result: areas for testing have been localized

The presented survey materials show areas of increased sound radiation near the doorway and in the area where the wall adjoins the reinforced concrete structure.

Linking the acoustic map to the image helps specialists determine which joints and connections need to be inspected. This data can be used to select localized soundproofing improvements and for subsequent monitoring of completed work.

Локализация участка повышенного звукового излучения в зоне примыкания стены к железобетонной конструкции — Localization of the area of increased sound radiation in the area where the wall adjoins the reinforced concrete structure

Where applicable

Acoustic imaging can be used to locate noise sources and transmission points on other objects.

Transport and road infrastructure

Study of transport noise sources and their contribution to the acoustic environment near buildings.

Public utilities and engineering networks

Search for noise sources from pumps, ventilation, air conditioning and elevator equipment.

Construction and dismantling

Localization of the noisiest mechanisms and operations to select measures to reduce the impact on neighboring buildings.

Urban energy and networks

Investigation of noise from transformers and auxiliary equipment near residential buildings.

Trade, catering, and cultural and leisure facilities

Search for ways of noise transmission through doors, windows, ventilation and enclosing structures.

Environmental monitoring and urban planning

Identification of urban noise sources for selecting locations for installation of screens and other protective measures.

Law enforcement and supervisory activities

Localization of sources when analyzing noise complaints and planning further measurements.

Housing and communal services and property management

Inspection of joints, openings and utility inputs during acceptance, repair and operation of buildings.

Equipment and Software

Acoustic camera for examinations and software for analyzing recordings and preparing reports.

NAC-PAA portable acoustic camera for visualizing sound sources and examining areas of its transmission through structures.Overview

Aura SVSSoftware for analyzing stored acoustic data and automated preparation of reports based on survey results.About the software

Need to find the source of noise in a building?

Tell us about the property and the nature of the noise—we'll discuss an on-site inspection or renting a camera for self-inspection.