High-Frequency Noise Monitor

Veröffentlicht von: TOON,LLC

Beschreibung

"High-Frequency Noise Monitor" is a high-frequency noise analysis tool that specializes in high-frequency bands above 8 kHz.
You may be exposed to artificial high-frequency noise on a daily basis that is inaudible to the human ear. This app allows you to monitor such high frequency noises and examine their occurrence.
In general, noise may contain relatively high frequency components depending on its source, and this is classified as high frequency noise.
For example, harmonic noise is radiated from the main body of an electronic device or the power lines of a power conversion device such as an AC-DC power adapter, and depending on its power level, it may affect peripheral devices.
There are also devices that generate high-frequency noise to drive away vermin such as rats and weasels. The frequency of the sound varies depending on the type of vermin, and some devices incorporate sensors to change the volume and frequency over time. When such devices are installed in the vicinity, there are cases where they can lead to noise problems with adverse effects on human health.
High-frequency noise does not often occur at a constant volume or frequency, but often occurs in a certain cycle or randomly. It is not easy to detect such high-frequency noise.
This app collects randomly fluctuating high-frequency noise from the iPhone's built-in microphone and performs frequency analysis in real time.
In addition, it retains the PCM data for 20 seconds just before the measurement is stopped and displays a spectrogram of FFT and octave band analysis. The spectrogram is a graph showing the analysis results of the frequency spectrum of sound, with time on the vertical axis, frequency on the horizontal axis, and signal strength in colors. You can visually monitor the occurrence of high-frequency noise.
Features:
# Main: Real-time frequency analysis function.
- Real-time measurement: Automatically stops after a maximum of approximately 180 seconds.
- Maximum frequency detection and power level display (dB unit in 20 μPa standard)
- Time trace display: approx. 10 seconds
- Display gain adjustment (Range): 3 levels (0dB - 90dB / -10dB - 80dB / -20dB - 70dB)
# Analysis: FFT/octave band spectrogram analysis function (PCM data for 20 seconds immediately before the measurement is stopped is saved, and spectrogram analysis is performed.)
- FFT spectrogram analysis (FFT)
- Octave spectrogram analysis (OCT)
- Display gain switching (Range): 3 levels
- Playback function: approx. 20 seconds.
- Playback sound filter (Filter): 8kHz high-pass filter to cut off low-mid range sound.
# Snapshot (Snap): Save the analysis result as an image file.
Operation Procedure:
1) Sound measurement and real-time frequency analysis (Main)
Tap Start button in Main mode to start measurement. It displays the real-time instantaneous frequency analysis result and the trace of frequency time variation. The frequency and signal level at which the maximum level is detected can be displayed numerically.
2) Spectrogram analysis (Analysis)
After measurement in Main mode, tap the Analysis button to perform spectrogram analysis. Tap FFT or OCT button to display the spectrogram by FFT or octave band analysis.
3) Snapshot
By tapping Snap button, you can save the measurement result as an image file in "Photos".
Notes:
- The measurement of high frequency sounds depends on the sensitivity characteristics of the built-in microphone, so it may vary depending on the iPhone model.
- Wireless (Bluetooth) headphones and headset are not supported.
- At the time of the first access to Microphone and Photos after installing the app, you will be asked authorization to access them by the iOS system. If you have not enabled this setting, the app can not access them by privacy restrictions of the iOS system. Please enable the access permission on the iOS setting, "Settings > Privacy & Security > Photos or Microphone".

Please visit our iOS app support page for more information on this app.
Ausblenden Mehr anzeigen...

Screenshots

High Häufige Fragen

  • Ist High kostenlos?

    High ist nicht kostenlos (es kostet 5.99), enthält jedoch keine In-App-Käufe oder Abonnements.

  • Ist High seriös?

    Nicht genügend Bewertungen, um eine zuverlässige Einschätzung vorzunehmen. Die App benötigt mehr Nutzerfeedback.

    Danke für die Stimme

  • Wie viel kostet High?

    Der Preis von High beträgt 5.99.

  • Wie hoch ist der Umsatz von High?

    Um geschätzte Einnahmen der High-App und weitere AppStore-Einblicke zu erhalten, können Sie sich bei der AppTail Mobile Analytics Platform anmelden.

Benutzerbewertung
Die App ist in Algerien noch nicht bewertet.
Bewertungsverlauf

High Bewertungen

Keine Bewertungen in Algerien
Die App hat noch keine Bewertungen in Algerien.

Store-Rankings

Ranking-Verlauf
App-Ranking-Verlauf noch nicht verfügbar
Kategorien-Rankings
Diagramm
Kategorie
Rang
Top Bezahlt
139

Schlüsselwörter

High Konkurrenten

Name
SmarterNoise Pro
Video recording sound analyzer
FireBug Night Vision
Real Night Vision Camera
SPLnFFT Noise Meter
Serious audio measurements
Infrasound Recorder
Electromagnetic EMF Detector
Find waves & Emitters Nearby
Vibration
SDR Receiver
Software Defined Radio
Impulso Pro
White Shield
Noise Meter & Sound Jammer
Black Audio Tool - B.A.T
simple and outstanding

High Installationen

Letzte 30 Tage

High Umsatz

Letzte 30 Tage

High Einnahmen und Downloads

Gewinnen Sie wertvolle Einblicke in die Leistung von High mit unserer Analytik.
Melden Sie sich jetzt an, um Zugriff auf Downloads, Einnahmen und mehr zu erhalten.
This page includes copyrighted content from third parties, shared solely for commentary and research in accordance with fair use under applicable copyright laws. All trademarks, including product, service, and company names or logos, remain the property of their respective owners. Their use here falls under nominative fair use as outlined by trademark laws and does not suggest any affiliation with or endorsement by the trademark holders.