Decibel X:dB Sound Level Meter

Thanks for using Decibel X! Here's what's new for the version 9.9.8: ∿ [New] - Full support for the iPhone Duo Previously in version 9.9.7: ∿ [Fixes] - Camera: the dB readings and the graphs on the overlay now update smoothly along with the live video, instead of looking frozen Previously in version 9.9.6: ∿ [New] - Siri & Shortcuts: run the app hands-free - start or stop measuring, save a recording, run the dosimeter, take a photo or record a video, create a PDF report, share a recording, change the weighting, set a noise alert and more ∿ [New] - Ask Siri what a term means ("What does TWA mean in Decibel X?") without opening the app ∿ [New] - Search your recordings in the Data tab - by name, note, location or date - or just ask Siri to find them ∿ [New] - Filter recordings by date: Today, last 7 or 30 days, or a custom range ∿ [New] - Swipe a recording to delete it, or drag one straight into Mail, Files or Notes ∿ [New] - Photos, videos and recordings now log the full street address instead of only the city ∿ [New] - The loud noise alert now shows its threshold value right on the meter ∿ [Improvements] - PDF reports are built faster and reused when nothing has changed ∿ [Improvements] - Reports for the running session now include the audio recording ∿ [Improvements] - "Running in background" is now off by default on new installs ∿ [Improvements] - Refreshed look on iOS 26 and iOS 27, and support for the newest devices ∿ [Fixes] - Fix crashes when starting a measurement with Siri, and when leaving the app ∿ [Fixes] - Fix recordings saved through Siri or Shortcuts coming out without audio ∿ [Fixes] - Fix "Stop measuring" telling you it had already stopped while it was still running ∿ [Fixes] - Fix the meter showing a wrong duration, and Reset not clearing it ∿ [Fixes] - Fix deleting several recordings at once leaving their files behind ∿ [Fixes] - Several other minor tweaks & bug fixes What to expect in upcoming versions: ∿ Support external or bluetooth mics ∿ Hearing test

"Decibel X" is one of very few noise meter apps on the market that has highly reliable, pre-calibrated measurements and supports dBA, dBC. It turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those. WHAT MAKE IT GREAT AND STAND OUT FROM OTHER APPS: - Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices - Apple Watch support: see noise level right from your wrist - Health App integration: export noise levels directly into Health app - Frequency weighting filters: ITU-R 468, A, B, C, Z - Powerful, smart history data management: + Recording data can be saved into a list of history records for future access and analysis + Each record can be exported as hi-res PNG graph or CSV text via sharing services + iCloud support which synchronize all history records across your Apple devices + Fullscreen mode to give overview the whole history of an record - Dosimeter with NIOSH, OSHA standards - Powerful calibration: Linear, Octave 1/1, 1/3, Load/save profile - FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed. - InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.). - Support Live Activity, Dynamic Island - Support both Portrait and Landscape layouts - Beautiful, intuitive and carefully crafted UI design. Themes: LIGHT, DARK and CLASSIC OTHER GREAT FEATURES: - Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) AND IMPULSE (50 milliseconds) - MIC Gain Offset from -50 dB to 50 dB - Standard measurement range from 30 dBA up to 130 dBA - HISTO graph for plotted history of the recorded values - WAVE graph with 2 display modes: Rolling & Buffer - SPECTROGRAPH - Real time scale level chart - Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts - Quick reference text to help you compare with real-life examples NOTES: - Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA. - Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference. * Privacy Policy: http://www.skypaw.com/decibelx/privacy_policy.html * EULA: http://www.skypaw.com/decibelx/terms.html