This is an analyzer for sound, vibration and magnetic field.
As the source code of this is widely published as an open source software on GitHub, you can make custom version of this.
We welcome the users who want us to make customized version of this app.
* Sound (Analyzer [FFT / RTA / Spectrogram], Scope, RMS, Signal Generator)
* Vibration (Analyzer [FFT], Scope, RMS)
* Magnetic field (Scope, RMS)
You can pinch (zoom) and pan (scroll) on measurement screens other than RTA and spectrogram, and pan (band selection) on RTA. You can pause by tapping the measurement screen. Since the measurement time is displayed at the time of pause, it is suitable for leaving as evidence. Please take a screenshot of the screen in the system standard way.
[Application example]
· Record the present situation as quantitative evidence, such as by using recording and use it for the improvement of obstacles.
· Use it for science education.
· Use it along with the sweep generator to improve the acoustic characteristics of the listening room.
Note:
This application has an audio signal oscillation function, and depending on the operation it may generate sound that is harmful to the human body, so please refrain from using things like headphones or headsets. We are not responsible for damage caused by using that equipment.
The resolution of the spectrum analysis of speech is about 11 Hz inherent, however, the actual resolution is in the maximum of 3 Hz by interpolation processing. It is not the accuracy that can be used to tune an instrument. Please use the instrument tuning application for that purpose.
If you can not find the current point by zooming in or scrolling, you can return to the default state that you can see the whole picture by pressing and holding the measurement screen long.
For a good result with Octave RTA, we recommend using Window Function and Fast Latency Mode.
The adjustable range of the FFT/Scope/RMS gain is from -20 dB to 20 dB.
The adjustable range of the SP gain is from 0 dB to 80 dB.
The noise reduction threshold is from -80 dB to 0 dB.
Allows you to output the data of Sound Spectrum, Sound Spectrogram, and every RMS'.
You can use the data files by Files.app on iOS or iTunes File Sharing on Mac.
Please note that the output file of Spectrogram is not small not like other data files.
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Summary of user reviews
Positive highlights
🔍
This app hasAccurate and consistent measurements for audio analysis
📊
This app hasPowerful spectrum analyzer and oscilloscope features
🔌
This app hasSupports external microphones for more precise measurements
🔍
This app hasHelpful for diagnosing and reducing car/equipment noise
🔍
This app hasUseful for live sound reinforcement and audio engineering
🔍
This app hasVersatile tool with magnetic field and vibration analysis
💰
This app hasCompletely free with no ads or in-app purchases
🔍
This app hasProvides a visual representation of sound frequencies
🔍
This app hasExcellent for identifying and tracking low-frequency hums
🔍
This app hasAccurate for measuring ultrasonic motion detectors
Negative highlights
⚠️
This app hasMicrophone calibration may be required for precise measurements
⚠️
This app hasSome users reported issues with the time-evolving spectrogram feature
⚠️
This app hasLaggy performance when analyzing high frequencies (10kHz+)
⚠️
This app hasLack of manual or user guide may make some features less intuitive
⚠️
This app hasUnable to use external audio files for analysis, only live input
My neighbour is using a scrambler / jammer on my camera, was told to get this to identify that what is true, any help will do, not technically savvy so would love to get some points on what to buy and do 👍🏻
Response from developer
To stop the malicious radio waves, you need a very expensive RF spectrum analyzer that supports up to 10GHz-20GHz, not a cheap SDR using such as RTL2832U. Sometimes TinySA Ultra （about £100）seems to hava an ability to do the task that you need, but if you need to solve the problem quickly or in case of gang stalking, you had better leave it to a professional.
