【實用音樂app】SPL Spectrum Analyzer|最夯免費app-綠色工廠好玩App

SPL Spectrum Analyzer measures and analyses sound pressure level (SPL) and sound frequency spectrum in real time (RTA) using FFT. It is accurate and very fast with refresh rate more than 10 Hz. User interface is from the PRO version. However, some features such as mic calibration are locked and are only available in PRO version.