https://sonir.app/en/blog Sonir is an iOS & Android app for air recording, acoustic measurement, and comparison: from SPL/RTA/FFT to sweep-based impulse response (RT60, frequency response, waterfall). en https://sonir.app/en/blog/decibel-x-alternatives https://sonir.app/en/blog/decibel-x-alternatives A Decibel X alternative without a subscription? Compare it with AudioTools, REW and Sonir by pricing model, measurement depth and recording comparison. Wed, 17 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/frequency-response-room-eq-smartphone https://sonir.app/en/blog/frequency-response-room-eq-smartphone Measure frequency response on a smartphone and apply room EQ: read the measured FR, auto-generate PEQ from the target difference, and export to REW / APO. Tue, 16 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/measure-rt60-with-smartphone https://sonir.app/en/blog/measure-rt60-with-smartphone Measure RT60 with a smartphone in 5 steps: set the input peak to -6 to -12 dBFS, earn SNR from sweep length, build the IR, and read the decay curve so values hold up. Mon, 15 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/rew-alternative-smartphone https://sonir.app/en/blog/rew-alternative-smartphone A REW alternative on your phone: how desktop REW compares with mobile measurement (Sonir) on RT60, frequency response, room EQ, and distortion, and where a phone falls short. Sun, 14 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/best-rt60-measurement-apps https://sonir.app/en/blog/best-rt60-measurement-apps Most phone audio apps are SPL meters; few actually compute RT60. We compare Decibel X, AudioTools, SignalScope, REW and Sonir by features and use case. Sun, 14 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/air-recording-compare-same-conditions https://sonir.app/en/blog/air-recording-compare-same-conditions Record and compare your audio gear under identical conditions. Fix level, distance, room, and mic, then level-match and ABX two takes on your phone. Sat, 13 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/measure-room-acoustics-with-smartphone https://sonir.app/en/blog/measure-room-acoustics-with-smartphone Measuring room acoustics with a smartphone: how far a built-in mic gets you, from SPL and RTA to sweep-to-IR for RT60, frequency response and waterfall. Fri, 12 Jun 2026 00:00:00 GMT https://sonir.app/en/blog/rt60-measurement-smartphone-guide https://sonir.app/en/blog/rt60-measurement-smartphone-guide RT60 (reverberation time) on a smartphone: the definition, sweep-to-IR Schroeder integration, and the recording level and SNR that keep values reliable. Thu, 11 Jun 2026 00:00:00 GMT