$6.99
![RPMmtr](https://is1-ssl.mzstatic.com/image/thumb/Purple125/v4/5e/ff/8b/5eff8b44-4ebd-8896-6921-c4b97128a178/AppIcon-1x_U007emarketing-0-10-0-85-220.png/100x0w.png)
RPMmtr
RPM Tachometer based on Sound
⭐️1.6 / 5
Rating
🙌5
Ratings
📼1 vid & 7 scs
Content
📦w/o updates
Updates frequency
🗣❌ unsupported
Your locale
- Versions
- Price History
- Description
- FAQ
All Versions of RPMmtr
1.5
October 20, 2021
- Analysis quality warning
- Predefined suggestions for RPM ranges
- Correction factor for dominant harmonic order
More1.3.1
May 7, 2021
Bug fix
1.3
May 2, 2021
- Bug fix
1.2
February 10, 2021
Improved performance.
1.1
February 8, 2021
Improved performance
1.0
February 8, 2021
Price History of RPMmtr
Description of RPMmtr
Engines, motors and rotating machinery generate periodic sound patterns. RPMmtr analyses those sound patterns to measure RPM (rotational speed) based on state-of-the-art signal processing technology.
The result of this estimation is shown in three different views. The tachometer view displays the rotational speed at a glance. The color of the dent indicates how clear the measurement is. You can swipe the red ring control and improve the result by specifying the expected RPM range.
The tracking view shows the evolution of the rotational speed over time. The accuracy of the measurement is indicated by the size and color of the circles.
Experts can use the spectrogram view: the graph shows the frequency distribution of the sound. Small arrows show the rotational speed. Adjust the axes scaling by a swipe with one finger.
Notice on usage:
The app can estimate the correct rotational speed only in cases if the sound is very clear (i.e. the rotating device generates clear periodic sound patterns with one frequency) and there is no background noise.
RPMmtr is for educational purposes only. We do not take responsibility for decisions taken by the reader based solely on the information provided in this app.
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RPMmtr: FAQ
No, RPMmtr cannot support iPad devices.
The RPMmtr app was created by Andreas Bartl.
To function properly, the app requires at least iOS 14.4.
RPMmtr has a very low rating of 1.6 out of 5.
The Primary Genre Of The Rpmmtr App Is Productivity.
1.5 is the most recent version of RPMmtr.
The most recent update for RPMmtr was released on July 7, 2024.
The release date of the app was on February 5, 2023.
Suitable for children aged 4 and up, contains no objectionable material.
You can use the RPMmtr app in English.
No, RPMmtr is not on Apple Arcade.
No, RPMmtr does not integrate in-app purchases for users.
No, RPMmtr does not support compatibility with Apple Vision Pro.