Measure sound levels with SPL meter and RT60 analysis for room reverberation. Analyze frequency spectra using spectrogram and octave modes. nd test audio signals with white/pink noise, sine, and sweep options.
Find public restrooms using a map with color-coded emojis indicating cleanliness and ratings. Search by location, get directions for driving or walking, and view user reviews to locate the options.
Create a calming audio environment to block distractions or aid sleep. Play continuous, melody-free sounds that fade out automatically. Use built-in iPhone speakers or headphones. Adjust volume and set fade-out timers.
