Effect vs Decibel Meter Pro

This is the Bluetooth speaker control APP, here you can connect to the speaker, there are many functions, such as music, microphone, guitar volume can be adjusted. In the individual interface there are balancing functions, but also see red sound, high school bass and so on. Let you do not need to touch the Bluetooth speaker, you can control the speaker within a certain distance.

Turn your iPhone into a professional sound level meter. Measure noise in dB, dBA and dBC, see every frequency and know how much noise your ears can safely take. ANALYZE SOUND LIKE A PRO • Real-time spectrum analyzer with the dominant frequency • Live spectrogram: watch sound change second by second • 1/1 and 1/3 octave band analysis • A, C and Z weighting, Fast and Slow response • Leq, LCpeak and peak hold PROTECT YOUR HEARING • Noise dose against NIOSH and OSHA limits: how much of today's safe exposure you have used and how long is left • Loud-sound alert with vibration at your own limit RECORD, PROVE, SHARE • Save the audio with every measurement and play it back any time • L10, L50 and L90 statistical levels • Export CSV data and one-page PDF reports, ideal for noise complaints • Location and map for each measurement • Save to Apple Health as environmental sound levels PREMIUM (ONE-TIME PURCHASE) • No ads on any screen • Keeps recording with the screen locked • Noise log: every loud moment with time and audio • Live dB on the Lock Screen, Dynamic Island and widgets • A notification when it gets too loud • iCloud sync across your devices EASY TO USE • Four meter styles: LED, Modern, Classic and Spectrum • Calibration to match a reference meter • Light and dark mode, 50 languages PERFECT FOR Noisy neighbors, concerts, workplaces, classrooms, traffic, home studios, and checking how quiet your bedroom really is. GOOD TO KNOW A phone microphone is not a certified instrument, so readings are an estimate and can vary between devices. Use calibration for the best accuracy.