MATCO TOOLS vs SoundMeter 2D

The Matco Tools SmartEAR2 Sound & Vibration Detection app was developed to help assist the service technician in locating and finding defective or worn parts in automobiles, heavy machinery or industrial equipment where vibration, rattles, squeaks and grinding sounds would be associated making the task very difficult or impossible to diagnose. When used with our specially designed hardware kits your smartphone will be transformed into a state of the art Sound & Vibration Detection Technicians Tool, allowing for ease of locating and finding those troubled areas. NOTE: Additional hardware is required to use this app. For information on how to purchase hardware please contact your local Matco Tools Distributor or call 1-866-BUY-TOOL**** Features: User friendly interface and intuitive operation. Sound level reading displays average, peak and real-time values. Sound level readings are displayed in either Analog or Digital. Analog and Digital readings have 2 display panels the user can choose from. Analog Meter or Analog Wave-Form. Digital Numeric or Digital Bar Graph. Background sound off-setting, sample rates, decibel off-setting can be manually be set. Reset/Refresh buttons reset/refresh values to default settings. Sound Level Reading Sampling Rate Decibel Off-set Master Volume Control User information guide includes informative facts about sound perception and permissible noise level exposure as well as a sound level comparison reference chart. Additional Information: Required: Any iOS device running iOS5.0+. Recommended: iPhone 4 and newer/ iPod Touch 4 and newer. Compatible: iPad 2 and newer.

See your sound field. Then walk inside it. SoundMeter 2D turns your iPhone or iPad into a sound field mapping instrument. Place measurement points in augmented reality, record a few seconds at each one, and let a statistical model reveal where your room is loud, where it is quiet, and how far you can trust every square meter of the map. NEW: HEATMAPS IN AUGMENTED REALITY Your maps no longer stay on a screen. Lay them on the floor of the real room and walk through them. Pick a third-octave band, switch between SPL and uncertainty, raise the map to ear height, and watch peaks and dips appear exactly where they are. Film the view to show a client what a spreadsheet never could. WHY SOUNDMETER 2D Sound field mapping usually takes lab software, several instruments. SoundMeter 2D brings probabilistic field estimation to your pocket, built on the statistical framework used in spatial acoustics research. WHAT IT DOES SoundMeter 2D interpolates the sound field from a sparse set of measurements using Gaussian Process Regression with an anisotropic Matérn 5/2 covariance kernel. Hyperparameters are fitted by maximizing the log marginal likelihood. The result is not a simple interpolation: it is a probabilistic model of the field, spatial uncertainty included. For each third-octave band, the app produces two maps: - the estimated relative SPL field, in dB re max (posterior mean) - the 95% prediction interval map (posterior uncertainty) You see what the field looks like, and how reliable that picture is given your measurement density. KEY FEATURES - AR heatmaps: SPL and uncertainty maps on the floor, band by band, with on-demand quality indicators and video capture - Anisotropic GPR interpolation: spatial correlation adapts to the geometry of the space - Third-octave analysis from 16 Hz to 16 kHz (31 bands) - AR-guided point placement on a dynamic real-space grid, with live advice on the highest band your grid density can resolve - Drift control: a live tracking indicator and four-corner recalibration keep your points anchored to the real floor - Resume a campaign another day: re-anchor a saved project in AR and keep measuring - Result quality verdict: blind-test cross-validation, coverage checks and clear next steps - Statistical pre-processing: Tukey IQR outlier rejection and spatial sampling checks - SPL profile between two points, and frequency response at any point of the map - External measurement microphones with calibration file support - Structured PDF reports: campaign summary, point layout and one page per band - iPhone and iPad, with portrait and landscape layouts on iPad DESIGNED FOR - Acousticians and engineers who need fast, spatially resolved field estimates during site surveys and diagnostic work - Audio system integrators checking coverage and spotting weak zones before committing to loudspeaker placement - Researchers and educators teaching spatial acoustics, statistical field estimation or measurement methodology TRY IT FREE Measure in AR, map every band and preview the AR heatmap at 100 Hz, free. The Full version, a one-time purchase with no subscription, unlocks uncertainty maps, quality indicators, AR heatmaps in every band, external microphones and calibration, saved projects and complete PDF reports. MEASUREMENT LIMITATIONS SoundMeter 2D produces indicative, relative measurements. It is not a certified instrument under IEC 61672-1 or any equivalent standard, and is not intended for regulatory, legal or normative use. Results depend directly on the microphone used. The built-in microphone provides relative, comparative data suited to exploratory work; for better accuracy, an external Class 2 measurement microphone is strongly recommended. SoundMeter 2D is a field exploration and diagnostic support tool. Wherever certified acoustic data is required, accredited instrumentation and procedures remain mandatory. Requires a device that supports ARKit. LiDAR is recommended for the most stable tracking.