ICR experience in the field of engineering acoustics and vibrations has led us to formulate problems that software applications avalailable on the market cannot solve in an optimum or efficient way. The need to solve these problems has forced ICR to develop its own tools. As time goes on, we have realised that the needs of ICR are the same as those of any person involved in acoustics and vibration engineering. This has been the starting point for the development of our own acoustic software for sound insulation, which in some cases has been commercialized.

Work procedure

ICR's work in this field can be divided into two sections:

  1. Customised software which includes applications with specific development of spectral analysers for use with the following platforms:
  • OROS: PC-Pack OR24, PC-Pack OR25, PC-Pack OR38.
  • National Instruments: LabView DAQ 4451, DAQ 4472.
  • LMS: with interfaces UPA and UPP.
  • Matlab.

  2. Commercial software: the following applications can be purchased

  • dBKAisla, simple and multiple insulation calculations.
  • SILDef, calculations for parallel cell mufflers.
  • Noi, miscellaneous information about calculations of SPL, SWL, barrier cabins, etc.
  • CAMTIA, acquirement of the acoustic characteristics of a material.

It must also be pointed out that ICR has contributed to the development of finite element codes for Computational Fluid Dynamics (CFD) and Computational Aeroacoustics (CAA) which have been used successfully in calculating the noise levels of high speed trains.



dBKAisla is the only tool for the prediction of acoustic insulation which unites the following in a single program: 

  • Calculation of the sound insulation of simple and multiple and mixed walls.
  • Calculation of the acoustic insulation in accordance with the new DB-HR of the CTE.
  • Acoustic solution database.
dBKAisla is the program for the calculation of acoustic insulation developed by ICR. It is capable of the rapid calculation of sound insulation for simple, multiple (double, triple....) and mixed (walls with windows, viewers, etc.) walls due to its physical properties.
The versatility of the application has been improved thanks to the possibility of predicting the overall acoustic insulation between two rooms from the acoustic insulation calculated for individual panels, in accordance with the method described in UNE-EN 12354, as specified in the DB-HR of the Technical Building Code. This is why new room combination are constantly added. 
The result of the program shows the insulation curves in relation to the frequency, the overall values of the insulation of pink noise in dBA and the Rw (C;Ctr) insulation index in accordance with standard ISO 717-1.
The results are the best guarantor of this program in light of the fact that a joint validation project conducted with the LGAI Technological Center showed a maximum difference between the estimated and laboratory values of less than 3dBA.
The simplicity of the user interface intuitively makes it an essential and efficient tool for dealing with noise transmission issues. dBKAisla enables users to come up with solutions for all types of curtain walling problems.
This multilingual program contains a variety of extras including diagrams, pictures and a search engine which scans by product and company in order to speed up the calculation process for architects, engineers, constructors and acoustic consultants the program is designed for. 
The database possesses a wide collection of acoustic characteristics of the most typical materials used in the construction industry, in addition to sound insulation (R') figures measured at the best laboratories.Furthermore, construction acoustical solutions created by the most important manufacturers in the sector are regularly added. Additionally, users may create their own database using the materials they use most.
The program can be used to create full reports based on the format specified by standard ISO-140, whereby the information used throughout the work session is collected.
The program also includes justification forms at the end of the calculations so users may determine and report whether or not  there is compliance with the current norm, DB-HR of the CTE.
The treatment of the data when drawing up these reports is extremely simplified thanks to the program having used a WindowsTM environment.
Minimum PC requirements:
PC Pentium 166
RAM : 64 Mb
CD ROM x16
SVGA 800x600
16 M colours
ICR-Puentes is a program for the treatment, frequency analysis and visualization of bridge vibration signals designed and developed by Ingeniería para el Control de Ruido SL. It was designed to meet the needs of a specific customer and other companies then purchased the program with the aim of optimising their operational procedures. 
ICR-Puentes is essentially a program for the management and analysis of bridge vibration measurements. The design of the software stands out due to its user-friendly interface. The program includes several features such as the visualisation of signals, modification/treatment of signals, frequency analysis, the generation of reports and the mass treatment of data. 
Main functions:
ICR regularly implements new features upon the request of the customer. Some of the program current features include: 
  • Synthesis and application of all types of digital filters.
  • Polynomial or spline interpolations.
  • Replay of signals.
  • Spectral analysis and determination of main frequencies and damping.
  • Calculation of maximum, minimum and average values, average deviation and stabilizers.
  • Conversion of data formats.
  • Project mode management of the set of signals. 
  • Multiple visualization of signals.
  • Applications and adaptations.
ICR-Puentes is a tool for the management of large amounts of measurements in a practical, agile and user-friendly environment. This tool adapts in accordance with the needs of each customer and provides users with calculation and analysis codes developed by ICR. 
ICR has developed several additional ICR-Puentes modules, always adapted to the needs of the customer. A good example is the d’OMA plugin, which carries out the operational modal analysis procedure using the most advanced calculation techniques.
The content and presentation of the reports generated by the program adapt to the needs of the user: a single click is enough to generate reports hundreds of pages in length, thereby optimising production costs.

ICR is an Acoustic Engineering resolving problems of noise and vibrations. ICR works for the railway, car, industry, construction and environmental sectors. The company researches (R+D) new methods to solve vibroacous-tic problems. ICR also designs software for quality control and transmis-sion loss and teaches acoustics to private companies and official colleges.
Ingenieria para el Control del Ruido – Barcelona.