This streamlit application delivers an estimation of the reverberation time in octave bands and an evaluation of the speech intelligibility for a room given by user inputs.
Users can enter the volume of the room and areas of surfaces and subsurfaces. Materials for these surfaces can be choosen from a database. Custom materials can be added to that database. Additionally a number of persons can be added to the rooms equivalent absorption surface. Speech intelligibilty can be evaluated for different use cases like ‘music’ or ‘education/communication’ as described in DIN 18041.
The calculations are based on statistical acoustics and implement the standards DIN EN 12354-6 and DIN 18041.
The App can be used online here.
A Documentation generated with Sphinx can be found on GitHub pages. For details on usage and implementation of the norms view the User Guide.
Use git to clone this repository into your computer.
git clone https://github.com/mcht67/Nachhallzeitenanalyse
Setup of the virtual environment:
python3 -m venv venv
source venv/bin/activate # Activation for Linux / MacOS
venv\Scripts\Activate.ps1 # Activation for Windows (PowerShell)
venv\Scripts\Activate.bat # Activation for Windows (CommandLine)
pip install -r requirements.txt
Open a console and navigate to the raumakustik directory:
streamlit run Nachhallzeitenanalyse.py
For more information see the Documentation and the User Guide.