Simplex vs dB Meter

Simplex™ is a generic tool to support participative observation networks. The Simplex™ smart app is one component of a more complete observation system that, in addition to the app, comprises a webGIS interface and a database. The application allows you to do any kind of thematic observation by driving the observers step by step, through explicit icons, to the right observation item, and to finally declare it (with our without photo) with geographical and spatial stamp. Observers have access at any time and any location to environmental data for the last three days that are extracted on-demand from environmental databases. At each observation are attached selected environmental parameters that allows, at any time, to correlate some observations with environmental context. Simplex™ can host several observation networks, either of public type (i.e. open to anyone) or of private type. You can contract a license for a private one to create your own network. The license covers the configuration of the observation campaign (i.e. the selection and the hierarchy of icons and the required environmental parameters, if of interest to you). It also covers an access to a private webGIS that provides a synoptic view of the observation done by your network. Your data is kept safely on a private storage without any access by a third-party. Once created you can invite anyone you want to become an observer to your network. You can also easily change and adapt the icons at all time. The app allows on-line discussion (text) between network organizer and observers. Simplex™ app is available in several languages (Arabic, English, French, German, Italian, Norwegian and Spanish). Want to create your own network or need for more information? Please contact simplex@acri.fr

Turn your iPhone into a precise noise level meter. dB Meter · Noise Analyzer helps you measure, track, and understand sound levels around you in real time. Whether you’re checking if music is too loud, monitoring office noise, or protecting your hearing, this app gives you clear dB readings with a modern, easy-to-read interface. ◆ REAL-TIME dB METER • Live decibel (dB) readings with a large central gauge • Color feedback from safe to dangerous levels • Waveform view that reacts instantly to the sound around you ◆ SESSION STATS • Minimum, average, and maximum dB for each session • Live “LIVE RECORDING” status with session timer • Auto-stop timer option for hands-free measurements ◆ CALIBRATION & PRECISION • Gain calibration slider to match a reference sound level meter • Frequency weighting (dBA, etc.) to match real-world standards • Adjustable response speed (Fast / Slow) for smoother or more responsive readings ◆ SAFETY & AWARENESS • Custom alarm threshold: get visual feedback when levels are too loud • OSHA-style guidance inside the Info screen for exposure limits • Practical listening tips to help you protect your hearing ◆ HISTORY & ORGANIZATION • Save measurement sessions to your history • Review previous sessions with key stats • Useful for repeat measurements in the same locations ◆ CLEAN, MODERN DESIGN • Dark-friendly, minimal interface that focuses on the data • Config pills showing your current response mode and weighting • Optional “Always On Display” to keep the screen awake while measuring PLEASE NOTE: This app is designed for general information and personal use. For professional or legal measurements, a certified Class 1 sound level meter is recommended.