Overview
IPLA Pro is a software application that calculates Impulsive Peak Level Attenuation (IPLA) in hearing protectors in accordance with ASA/ANSI S12.42-2023. IPLA Pro works in conjunction with VIacoustics Trident (and optionally, IPLA Automator) to collect, manage and process *.wav files to determine the IPLA rating for hearing protectors.
IPLA features include:
File Loading and Management
- Manages all time waveforms needed for IPLA rating per ANSI S12.42-2023
- Automatically loads new recordings directly after each Trident acquisition
- Can batch load an entire directory of recordings, or manually load/replace single recordings
Results Display and Processing
- Measures and evaluates the following metrics for standards compliance:
- Peak sound pressure levels
- 1/3 Octave Band Signal to Noise Ratios
- A-Duration and Rise Time
- Calibration Transfer Functions (Hff)
- Estimated-Measured Open Ear levels
- Displays Impulse Insertion Loss (IIL), Impulsive Level-Dependant Attenuation (ILDA) and Impulse Complex Insertion Response (ICIR)
- Calculates IPLA using both the standard Friedlander impulse and custom impulse from a WAV file
- Determines whether hearing protector exhibits linear or nonlinear behavior
Data Export
- Exports detailed data to a Microsoft Excel Workbook for post-process analysis and reporting
- Saves all waveforms as a single *.tdms file
- Stores ICIR and Calibration Transfer Functions as *.tdms files
