AbLoss
Sound Absorption and Sound Transmission Loss Measurement System
Manufacturer:
Nihon Onkyo Engineering Co., Ltd.
AbLoss is a compact acoustic evaluation system designed for measuring the sound absorption and sound transmission loss performance of materials.
The system combines a compact reverberation room, a compact semi-anechoic room, acoustic measurement equipment, and dedicated analysis software into one integrated package.
It is suitable for research and development, product comparison, and quality evaluation of automotive interior materials, building materials, sound absorbing materials, and sound insulating materials.
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Compact Acoustic Evaluation System for Material Development
In product development, acoustic materials must be evaluated not only by their appearance or structure, but also by their actual acoustic performance.
AbLoss enables users to evaluate both sound absorption performance and sound insulation performance in-house.
By integrating the acoustic rooms, measurement equipment, software, and technical support into one system, AbLoss provides an efficient solution for laboratories, R&D departments, and quality evaluation facilities.
System Configuration
AbLoss consists of the following main components.
Compact Reverberation Room
The compact reverberation room forms a diffuse sound field and is used for sound absorption measurement and sound transmission loss measurement.
It provides the acoustic environment required to evaluate how materials behave under reverberant sound field conditions.
Compact Semi-Anechoic Room
The compact semi-anechoic room is used as the receiving room for transmitted sound evaluation.
Its sound absorbing interior reduces reflections and supports stable measurement of transmitted sound energy.
Acoustic Measurement System
The acoustic measurement system includes the equipment required for measurement and analysis.
Main components include:
- Microphones
- Acoustic intensity measurement equipment
- Loudspeakers
- Acoustic analysis software
- Measurement PC
- Microphone traverse system
Measurement Capabilities
AbLoss supports two major types of acoustic material evaluation.
Sound Absorption Evaluation
This evaluation is useful for developing and comparing materials that reduce reflected sound and improve acoustic environments.
Typical target materials include:
- Automotive interior materials
- Sound absorbing panels
- Ceiling materials
- Flooring materials
- Architectural interior materials
- Porous absorbers
- Fabric-covered acoustic materials
Sound Transmission Loss Evaluation
Sound transmission loss evaluation measures how much sound passes through a material, panel, or structure.
This evaluation is useful for developing and comparing materials that reduce transmitted noise.
Typical target materials include:
- Sound insulating materials
- Soundproof panels
- Automotive parts
- Building materials
- Composite panels
- Partition materials
- Lightweight acoustic structures
Dedicated Measurement Software
Alphas-LAB (IR)
Sound Absorption Measurement Software
Alphas-LAB (IR) is software for measuring sound absorption performance using the impulse response integration method.
It supports sound absorption measurement compliant with ISO 354.
Main features include:
- Sound absorption measurement
- Impulse response analysis
- Frequency-band analysis
- 1/1 octave band or 1/3 octave band analysis
- Measurement frequency range: 400 Hz to 5 kHz
- Software-supported frequency range: 25 Hz to 20 kHz
- Graph display of measurement results
- Data comparison between multiple samples
TL-LAB
Sound Transmission Loss Measurement Software
TL-LAB is software for measuring sound transmission loss using the acoustic intensity method.
It supports sound transmission loss measurement compliant with ISO 15186-1.
The software can also be used with a microphone traverse system for automated measurement.
Main features include:
- Sound transmission loss measurement
- Acoustic intensity measurement
- Automated measurement using a microphone traverse system
- Frequency-band analysis
- 1/1 octave band or 1/3 octave band analysis
- Measurement frequency range: 400 Hz to 5 kHz
- Software-supported frequency range: 25 Hz to 20 kHz
- Graph display of measurement results
- Data comparison between multiple samples
Installation Requirements
AbLoss is designed as a compact acoustic evaluation system that can be installed in laboratories, R&D facilities, and quality evaluation rooms.
Approximate installation requirements:
- Recommended installation area: approx. 6,300 mm × 4,400 mm
- System height: approx. 2,500 mm
- Required building height: 3,000 mm or higher
- Recommended floor load capacity: 400 kg/m² or higher
- Maintenance and working space should be secured around the system
Final installation conditions should be confirmed according to the actual building structure, available space, floor strength, and measurement requirements.
Applications
AbLoss can be used in a wide range of acoustic material evaluation applications.
Automotive Industry
AbLoss is suitable for evaluating acoustic materials used in vehicle interiors and automotive components.
Example applications include:
- Interior trim materials
- Floor materials
- Door materials
- Sound absorbing materials
- Sound insulating components
- Acoustic package development
Building Materials
AbLoss can be used to evaluate acoustic materials for architectural and construction applications.
Example applications include:
- Wall panels
- Ceiling materials
- Flooring materials
- Partition panels
- Interior finishing materials
- Soundproof building materials
Acoustic Product Development
AbLoss supports the development and comparison of acoustic products.
Example applications include:
- Sound absorbing panels
- Soundproof panels
- Composite acoustic materials
- Lightweight noise control materials
- Fabric-covered acoustic materials
- Prototype comparison testing
Quality Evaluation
AbLoss can also be used for internal quality evaluation and product verification.
Example applications include:
- Comparison of material lots
- Evaluation of prototype samples
- Verification of design changes
- Acoustic performance confirmation before shipment
- Internal R&D testing
Quality Evaluation
AbLoss can also be used for internal quality evaluation and product verification.
Example applications include:
- Comparison of material lots
- Evaluation of prototype samples
- Verification of design changes
- Acoustic performance confirmation before shipment
- Internal R&D testing
Support System
AbLoss is provided as a complete solution, including consultation, system design, installation support, measurement training, and technical support after installation.
1. Before Installation
Before installation, we review the customer’s measurement objectives, target materials, installation environment, and required workflow.
Based on these requirements, we propose suitable system specifications and layout plans.
2. During Installation
During installation, we provide practical training so that users can operate the system effectively.
Training can include basic measurement procedures, sample setup, software operation, and data handling.
3. After Installation
After installation, technical support is available for measurement operation and data interpretation.
Support examples include:
- How to place test specimens
- How to manage temperature and humidity conditions
- How to read measurement data
- How to compare multiple samples
- How to improve measurement repeatability
- How to operate the analysis software
Evaluate Acoustic Materials In-House
AbLoss enables companies and laboratories to perform acoustic material evaluation in-house.
By reducing dependence on external testing and improving measurement efficiency, AbLoss supports faster product development, material comparison, and quality evaluation.
For inquiries about specifications, installation requirements, or custom configurations, please contact us.
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