Vibration vs Audio Memos

Vibration turns your iPhone or iPad into a true FFT vibration spectrum analyzer — a portable alternative to a commercial spectrum analyzer for machinery diagnostics, acoustic testing, and hobbyist vibration analysis. Version 5.00 is a complete visual redesign: a modern, color-coded interface built around the way vibration technicians actually work, with clean, uncluttered screens for every channel and setting, a drag-cursor readout for reading exact values on any plot, and a crisp new PDF report you can generate and share in seconds. MEASURE FROM ANYWHERE - Built-in 3-axis accelerometer and gyroscope — sensitivity to about 0.02g, range ±2g - Built-in microphone input for acoustic vibration analysis - Digiducer professional USB accelerometer support (additional Digiducer features unlockable via in-app purchase) ANALYZE LIKE A BENCH-TOP SPECTRUM ANALYZER - Time series and FFT frequency spectrum on every channel, with adjustable sample rate (10 Hz–100 Hz internal, up to 48 kHz with microphone/Digiducer) - Linear-Linear, Log-Log, Log-Linear, and Linear-Log frequency display modes - Hamming, Hanning, and Flattop windowing - Integrate and differentiate in the frequency domain - RMS and peak levels per channel and combined - Frequency averaging and peak hold - Color-coded peaks list with the top 5 peaks per channel - Tap-and-drag cursor readout in portrait or landscape, with magnetic snap to peaks - Selectable data length from 256 to 4096 samples, variable start delay up to 20 seconds - DC-remove option to eliminate the gravity vector BUILT FOR THE FIELD - Guided accelerometer calibration with an on-screen orientation guide, live stability meter, and a locked reposition countdown - Trigger acquisitions from one or more accelerometer channels or the microphone - Auto-repeat and auto-save for long-duration monitoring - Apple Watch companion app — trigger a sample and review settings right from your wrist DOCUMENT YOUR RESULTS - New crisp PDF report — identical on iPhone and iPad — with time series and frequency plots and acquisition details - Open, non-proprietary format — data saves as plain CSV you can reload in the app or open in Excel, MATLAB, or Python, and email straight to your desktop - Save data locally and transfer with the Files app - Screen snapshots sync to your computer like any photo In many applications, Vibration is an excellent portable alternative to a commercial spectrum analyzer. In predictive maintenance applications it can help identify bearing defects, shaft misalignment, imbalance, and structural resonant frequencies — and it's equally useful for monitoring the acceleration of part and material handling equipment. Further development and additional features are planned. Use the email links in the app to request features or report issues.

Audio Memos is a professionally made audio recorder. It has an amazingly intuitive interface, which is easy to use and full of powerful features. Use it in interviews, lectures, music session, briefings, ... and simplify your recording tasks. The New York Times - "A really useful feature is that the app can automatically start recording the moment it is started" LifeHacker - "The best voice recording app" TUAW - "Powerful, inexpensive, and useful" Apple - "What's hot" section TOP FEATURES • Best quality - adjustable to fit your needs. • Amazingly loud - hear your recordings. • Background recording - multitask at will*. • iCloud - access your memos everywhere. • Transcription - transform your memos into text. MORE FEATURES • Email your recordings. • USB file transfers. • Append audio to existing recordings. • Search / Sort / Filter your recordings. • Variable speed scrubbing. • Send recordings to a computer using WiFi. • Records when your device is in sleep mode. • Pauses automatically on incoming phone calls. • No time limit on recording length. • Application lock code. SUBSCRIPTION All features listed above can be used without an in app purchase. Some advanced features require an active subscription. These include: • Voice activated rec. - stop recording silence. • Upload to Dropbox, Google Drive, Box, Evernote, FTP or WebDAV. • Insert audio - insert comments easily. • Position markers - easy navigation. • Memo alert dates / reminders. • Adjustable reading speed. • Add pictures to a memo. • Send or delete multiple recordings at a time. • Stereo recording using the builtin microphones (requires a compatible device and an active «Pro +» subscription). Duration and price of each subscription are displayed in our storefront. All subscription costs will be charged to your Apple ID account, starting at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the subscription period. Your account will be charged for renewal within 24 hours prior to the end of the subscription period. It is not possible to cancel a subscription period once you have been charged for it. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. You can manage subscriptions and disable auto renewal by going to your account settings on the App Store after purchase. Terms of Service: https://imesart.com/legal/terms-of-service.php * recording will stop if another app uses the audio system.