INTRODUCTION ANDOBJECTIVES: Sonouroflowmetry (SUF) captures the sound generated by a stream of urine striking the water in a toilet bowl. The signal is processed and analyzed using specialized software and subsequently stored on a secure server, where healthcare providers and patients can electronically access recordings at any time. The aim of this study was to evaluate the accuracy with which SUF records urinary flow parameters and voided volume. METHODS: Twenty-five healthy male volunteers (age 18 63) were included in the study. Subjects performed simultaneous recording using SUF and uroflowmetry (UF). The Intensity of sound generated by urine striking the water in a urine collecting receptacle was recorded using a dedicated cell phone. SUF recordings were visualized in the form of a trace, representing sound intensity over time. Subsequently, simultaneous sets of UF and SUF recordings were analyzed for flow time, voided volume, and maximal flow rate (Qmax). SUF voided volume was determined by area under the curve, and Qmax was calculated based on peak sound intensity. Pearson’s correlation coefficient (PCC) was used to compare parameters recorded by UF with those calculated using SUF. RESULTS: From a total of 188 recordings, 34 were excluded because the voided volume was