spl

SPL is a professional-grade digital sound level meter for iPhone, iPad, and iPod touch. Ideal for audio professionals, it meets ANSI/IEC Type 1 standards with modes (Slow, Fast, Impulse, Peak, Leq), A/C weighting, and 10 octave band filters. Features include calibration, GPS-stamped results, and compatibility with external mics like iTestMic.