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OTOTETSU icon

OTOTETSU


qt sound lab.
1.7.0
  • Aug 31, 2026
    Update date
  • Everyone
  • Android 9.0+
    Android OS

About OTOTETSU

VVVF Inverter Sound Simulator

When electric trains accelerate and decelerate, we can hear some characteristic sounds, which is caused by inverters' controlling the torque and the rotational speed of the motors.

This app simulates the waveforms generated by inverters and sounds coming from motors, and you can also design sounds of imaginary trains.

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Additional APP Information

Latest Version

1.7.0

Uploaded by

กฤษฎา คงเถียร

Requires Android

Android 9.0+

Available on

Content Rating

Everyone

What's New in the Latest Version 1.7.0

Last updated on Aug 31, 2026

- The master controller can now be mounted vertically.
- You can now select the number of notches on the master controller.
- Added a feature for switching patterns automatically between acceleration and braking.
- Added support for setting the speed range for each inverter configuration using the inverter’s output frequency.

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OTOTETSU Screenshots

OTOTETSU posterOTOTETSU screenshot 1OTOTETSU screenshot 2OTOTETSU screenshot 3OTOTETSU screenshot 4OTOTETSU screenshot 5OTOTETSU screenshot 6OTOTETSU screenshot 7

Old Versions of OTOTETSU

XAPK
32.5 MBAug 31, 2026
Download
XAPK
30.5 MBJun 25, 2025
Download
XAPK
47.2 MBMay 13, 2025
Download
All Versions

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