Related Experiment Video
Updated: May 9, 2026

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Annotated dataset of simulated voiding sound for urine flow estimation.
Marcos Lazaro Alvarez1, Laura Arjona2, Alfonso Bahillo3
1Faculty of Engineering, University of Deusto, Bilbao, 48007, Spain. alvarez.marcoslazaro@deusto.es.
This study introduces a new dataset of simulated urinary flow sounds to advance artificial intelligence in sound-based uroflowmetry. This resource aids in developing AI algorithms for non-invasive urinary flow estimation.
Area of Science:
- Biomedical Engineering
- Acoustics
- Artificial Intelligence
Background:
- Sound-based uroflowmetry offers a non-invasive method for assessing urinary voiding characteristics.
- Current research is hindered by a lack of labeled datasets for developing supervised AI algorithms.
Purpose of the Study:
- To create a comprehensive dataset of simulated urinary flow sounds.
- To support the development and validation of AI algorithms for sound-based uroflowmetry.
Main Methods:
- Generated simulated urinary flow sounds using a peristaltic pump and a nozzle simulating the urethra.
- Recorded sounds at flow rates from 1 to 50 ml/s in a real toilet bowl.
- Acquired simultaneous audio recordings using a high-quality microphone, smartphone, and smartwatch.
Main Results:
- A dataset of labeled, 60-second constant-flow audio recordings in WAV format was created.
- Recordings cover flow rates from 1 to 50 ml/s, mimicking adult urination conditions.
- The dataset includes recordings from multiple devices, offering diverse data.
Conclusions:
- The presented dataset is a valuable resource for advancing sound-based uroflowmetry research.
- Facilitates the development of supervised AI models for accurate urinary flow estimation.
- Promotes innovation in non-invasive diagnostic tools for urological conditions.
Related Concept Videos
Filtration and Urine Formation
Physiology of Urine Formation
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
Anatomy of the Genitourinary System II: Bladder and Urethra
Physiology of the Genitourinary System III: Urine Concentration and Dilution
Imaging Studies VI: Voiding Cystourethrography and Cystography
Urodynamic Studies: Uroflowmetry

