With dB Volume you turn your iPhone / iPod touch into a Sound Pressure Level (SPL) Meter. You can choose between the industry standard weighting curves and response times. If you use headphones, unmute your device to listen to the noise!
– response time modes: impulse, slow, fast
– weighting functions: A B C Z (unweighted)
– peak hold function
– mute function
We calibrated dB Volume as carefully as possible for all available devices. But: keep in mind, that due to manufacturing tolerances this calibration does not necessarily apply to your device – it’s still an iPhone, iPod touch or iPad and not a calibrated measuring instrument!