Easy Audio Spectrogram vs QiGuang StarBox

Easy Audio Spectrogram is a simple real-time audio visualizer for microphone input. It shows live spectrogram and frequency spectrum views, helping you explore voices, instruments, music, room noise, and everyday sounds. The app is built around readability. Instead of adjusting gain values in the blind or fight a fixed color range, Easy Audio Spectrogram lets you adjust the graph’s dynamic range in real time. Use the live spectrum display as a guide, drag the color scale to the range you care about, and instantly get a clearer spectrogram. For music and voice, the app includes a note-based frequency scale and real-time pitch detection, making it easier to see sung notes, instrument pitch, harmonics, and resonance as they happen. The interface is minimal and comfortable to use in any orientation, even upside down. Text and icons rotate, but controls stay where they are, so the app remains easy to use whether the phone is in your hand, on a table, or pointed toward a sound source. You do not have to understand what's an FFT to use this app, the default setting works well and engineering settings have been translated to understandable concepts. You can save clean spectrogram screenshots directly from the app, without the buttons covering the image and without pressing hardware button combinations. This app is free to use, free of pop-ups or advertisement banners, use it to explore music or the science of acoustics. Additional Features: -Noise profile removal, hold the button to record a profile, release to activate. -Analyze harmonics in real time with multi-touch. -Psychoacoustic filter to make the graph reflect perceived sound signature rather than flat physical reality. -Optimized performance for many hours of use without heating up your device or draining the battery.

QiGuang is an NFC badge library: read physical badges, organize them into a library, back them up and share them, and load the ones you use onto StarBox. Read and collect Read a badge with the phone's NFC, one at a time or a whole stack in a single pass. Badges already in the library are reported as duplicates, new ones are called out. Each entry keeps its name, artwork, usage count and notes. Basic collections stay on this phone by default; signing in to QiGuang Cloud lets you sync your collection to the service. Carry and switch Connect to StarBox, an NFC badge emulator, over Bluetooth. Several badges can be loaded at once and arranged in your own order. With iOS Shortcuts you can switch badges directly: the menu lists candidates by account and category, and remembers the ranges you use most. StarBox is an optional accessory. Write to blank tags Write a badge to a blank NFC tag you supply (NTAG215) and tap that instead. The tag holds a fixed copy, and its usage count stops at the moment you write it. Badge index All 115 badges, with the ones collected and the ones still missing, and what each account has collected. Organize Categories, account labels, favorites, search and filters. Collections stay on this phone when you are signed out. Appearance Skins include Pixel Grove, Floral Letter and Pearl Atelier. Firstlight is available only to verified Pioneer devices. The light and dark preference is yours to pick while a built-in skin is selected, and it can follow the system. Backup and sharing Export an encrypted backup, or share a single badge with a short note. Encryption uses PBKDF2 and AES, and the password is sent separately from the file. Create a full poster of your collection. Deleted badges go to a bin you can restore from, and snapshots take you back to an earlier state. Privacy No account is needed for a basic collection. Your data stays on this phone by default; signing in to QiGuang Cloud syncs your collection to the service. Sharing and backup passwords are never uploaded. Privacy policy: https://sky.solarcandies.xin/privacy The app interface supports Simplified Chinese and English. Badge names, artwork and anything you type can be in any language. QiGuang works with the physical NFC badges of Sky: Children of the Light, and is not affiliated with or endorsed by thatgamecompany.