HBK 2255 with Building Acoustic Partner App

Efficient, Reliable and Flexible Sound Insulation Testing

Building Acoustics Partner turns sound insulation testing into a guided, repeatable workflow – so you can work faster on site, reduce missed measurement positions, and deliver standards-based reports with confidence.

Key benefits

• Test efficiently on real building sites with a lightweight, robust HBK 2255-based solution designed for practical conditions.
• Stay on track with guided planning so you don’t miss positions, and reuse setups between partitions to reduce total measurements.
• Work flexibly as conditions change – update the plan any time when site access or room availability shifts.
• Save time by working in pairs – measure source (L1) and receiving room (L2) levels simultaneously using two HBK 2255 instruments.
• Finish faster back at the office with streamlined analysis and reporting in the PC app built to maximize insight and confidence.

Key features

• Supported methods: interrupted noise and impulse methods, plus fixed and manually-scanned level measurements
• Standards-based calculations according to national and international standards, including the low-frequency procedure in ISO 16283
• 1/1- or 1/3-octave band level measurements for source and receiving room level spectra
• Reverberation time measurements using interrupted or impulsive noise signals
• Mobile + PC workflow: wireless remote control and workflow support in the mobile app, plus efficient analysis and reporting in the PC app

Typical applications

• Airborne, façade and impact sound insulation tests according to national and international standards
  • Airborne sound insulation testing – the sound insulation from one room (the source room) to another (the receiving room)
  • Façade sound insulation testing – airborne sound insulation with the “source room” being the space outside a building, and the receiving room being inside the building
  • Impact sound insulation testing – the sound level in the receiving room from a standardized tapping machine in the source room
• Calculation of sound insulation ratings
• Troubleshooting noise problems and complaints
• Assessing noise levels relative to the purpose of the room or space (reverberation time, speech intelligibility, etc.)
• Ad hoc noise assessments, such as sound level changes with new installations

Building acoustics measurements, analysis and documentation have never been so simple

Whether you’re documenting compliance for authorities or troubleshooting acoustic performance during construction and commissioning, you can use Building Acoustics Partner when you need fast, standards-aligned sound insulation results.

The measurement workflow includes measuring 1/1- or 1/3-octave band level spectra in the source room (L1) and receiving room (L2) using fixed positions or manual scans. Depending on the project setup, you may want to apply the interrupted noise or impulse methods. From the raw measurements, you run sound insulation calculations according to national and international standards including the low-frequency procedure of ISO 16283, then finally generate a standards-based report.

Get the job done: In the field and back in the office

Download the Building Acoustics Partner app from the App Store^® to your smartphone to wirelessly take control of the SLM. The mobile app adds wireless remote control and workflow automation to help ensure complete coverage on site. Plan measurement positions, reuse measurements between similar partitions to minimize total work, and adjust the plan at any time as site conditions change.

In the office, the PC app accelerates analysis and reporting while giving you deeper insight into the data. Perform detailed review, including ‘what if’ adjustments, and generate reports aligned with relevant standards.

Task-focused Apps For Your SLM

The base application for HBK 2255 is Noise Partner, a general noise measurement app. Building Acoustics Partner would be installed on top of the base, providing you with a powerful multi-application SLM solution.

You can further extend your SLM capabilities with dedicated workflows for other measurement tasks:

• Work Noise Partner – evaluate workplace noise to ensure compliance with regulations and safeguard employee safety, including determining the need and level for hearing protection. The interface guides you through a full survey and requires minimal training to ensure valid and actionable data.
• Product Noise Partner – determine sound power emissions, or measure sound pressure levels, according to international standards for regulatory compliance, benchmarking and labelling. Full workflow support simplifies your task and minimizes the chance of errors.
• Enviro Noise Partner – perform community noise surveys and compliance-oriented spot checks to evaluate the impact of a noise source and how different sources contribute to the ambient noise at the measurement position.

Each software license is installed on the SLM. The SLM license automatically enables connection to the smartphone and desktop app versions, which are free to download!

• The iOS mobile app is available for download via the App Store
• The desktop PC app is available on our Downloads page
• Noise Partner for Android is available via Google Play™