SmarterNoise Pro vs Leaf.

SmarterNoise Pro is the most advanced edition of the SmarterNoise recording sound level meters. SmarterNoise Pro edition is developed especially with more advanced measurements in mind, and includes many requested features such as a frequency spectrum display, export of measurement data, A-, C- or no weighting for sound level measurement, and full screen audio mode. SmarterNoise Pro edition does not contain any advertising, and performs accurately and fast. Features: • Sound level measurement in video mode • Sound level measurement in audio mode • Sound meter snapshot camera • Record video and audio files (paid function) • Recording timer • Sound level activated audio recording • Frequency spectrum display (paid function) • Peak frequency detection • A-, C- or no frequency weighting • Export of measurement data in CSV format • Full HD (paid function), HD and VGA video resolution • Three video quality settings • Archive for saved files • Sharing of saved files • Calibration • Save location of measurement (optional) • Time and date • Continuous Leq, LAeq, LCeq value • 10 second sound level average (Leq, LAeq, LCeq) • 60 second sound level average (Leq, LAeq, LCeq) • Maximum and minimum decibel level About decibels and sound level measurement The unit for measuring sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of about 3 decibels. The reference point of 0 decibel is set at the intensity of the least perceptible sound, the threshold of hearing. On such a scale a 10-decibel sound is 10 times the intensity of the reference sound. Highlighting this is important as already a few decibels higher or lower makes a noticeable difference in how noise is perceived. The preferred method to describe sound levels that vary over time, resulting in a single decibel value measuring the total sound energy over the period, is called Leq. It is however common practice to measure sound levels using A-weighting, which attenuates lower and higher frequencies that the average person cannot hear. In this case the value is called LAeq. A- and C-weighting The A-weighting is a standard, commonly used filter that attempts to alter the measured sound pressure levels to more closely match the perception of the human ear. A-weighting makes the sound level meter less sensitive to very high (over 8000 Hz) and low frequencies (below 1000 Hz). C-weighting also attenuates low and high frequencies, but the attenuation of low frequencies is much less severe compared to A-weighting. Calibrate: Calibrate the application using the calibration tool found in the settings menu. Phones and their components vary in quality and setup so you need to calibrate the app in order for the results to be relatively comparable. One suggestion is that you close the window and door to your bedroom or bathroom, turn off appliances, and once its very quiet calibrate the app so the reading is about 30 decibel.

Leaf – Explorez. Partagez. Connectez. Leaf est une application innovante qui vous permet de découvrir, créer et partager les meilleurs spots en plein air autour de vous. Que ce soit pour vous détendre, admirer un coucher de soleil, organiser un pique-nique, faire du sport, observer les étoiles, ou simplement profiter d’un moment en solo ou entre amis, Leaf vous accompagne dans vos envies du quotidien. Contrairement aux plateformes centrées sur les lieux commerciaux comme les bars ou restaurants, Leaf met en avant des endroits authentiques, souvent en nature ou dans des cadres urbains calmes, propices aux rencontres, à la détente ou à l'activité. Grâce à une carte interactive, une base initiale de lieux populaires à travers le monde et les apports de la communauté, Leaf vous guide vers des lieux inspirants. Vous pouvez également poster des photos éphémères directement liées aux spots, pour capturer et partager des instants uniques, visibles pour une durée limitée. Fonctionnalités principales : Création de spots : Partagez vos endroits préférés. Photos éphémères : Immortalisez l’instant, sans laisser de trace permanente. Fil personnalisé : Suivez les découvertes de vos amis et d’autres utilisateurs. Catégories intelligentes : Recommandations, lieux proches, activités sportives, coins calmes, etc. Carte interactive avec itinéraires : Trouvez facilement l’accès aux spots et connectez-vous à votre app GPS. Disponible en français, et bientôt en anglais, Leaf est bien plus qu’une simple application : c’est un outil pour vivre des expériences simples, locales et enrichissantes. Leaf – Transformez chaque moment en aventure. Leaf – Explore. Share. Connect. Leaf is an innovative app that lets you discover, create, and share the best outdoor spots around you. Whether you're looking to relax, watch a sunset, plan a picnic, do sports, stargaze, or simply enjoy a quiet moment alone or with others, Leaf helps you find the perfect place. Unlike platforms focused on commercial venues such as bars or restaurants, Leaf highlights authentic spaces—natural or urban—that are ideal for resting, socializing, or staying active. With an interactive map, a starting database of popular global spots, and growing user contributions, Leaf guides you to inspiring locations. You can also post ephemeral photos directly linked to spots, capturing fleeting moments without permanence. Key features: Spot creation: Share your favorite places. Ephemeral photos: Post short-lived snapshots of the moment. Personalized feed: Follow discoveries from friends and the community. Smart categories: Suggestions, nearby places, outdoor activity spots, quiet areas, and more. Interactive map with routing: Easily explore and connect to your preferred navigation app. Available in French and coming soon in English, Leaf is more than an app—it's a way to experience real-life, local moments worth remembering. Leaf – Turn every moment into an adventure.