OTOTETSU

1.6.1

qt sound lab.

4.62

279 reviews

10,000+
Downloads

Free

VVVF Inverter Sound Simulator

About OTOTETSU

OTOTETSU is an entertainment app developed by qt sound lab..

Download Statistics

OTOTETSU has been downloaded 35 thousand times. In the last 30 days, the app was downloaded 620 times.

User Ratings

OTOTETSU is rated 4.62 out of 5 stars. The rating is based on 280 ratings.

App Information

OTOTETSU is FREE to download. The APK download size is 30.39 MB. The latest version available is 1.6.1. The last update was on June 21, 2025.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play August 2021.

Description

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.

More data about OTOTETSU

Price	Free to download
Total downloads	35 thousand
Recent downloads	620
Rating	4.62 based on 280 ratings
Ranking	Not ranked
Version	1.6.1
APK size	30.4 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the OTOTETSU app

OTOTETSU compared with similar apps

Common keywords of similar apps

Inverter Inverters Motors Sounds Trains

Keywords missing from this app

Sound Simulator Car Engine Train Game Fan Real Speed Experience Driving Includes Pack Realistic Recent Indian Electric App World Throttle Sfxlab Control Bug India Railway Coaches Effects Drive Motorcycle Authentic Feel Subway Application Free Sports Bike Super Moto Play Classic Cars Supercar Gt Truck Fixes Hear Explore Routes

Google Play Rating history and histogram

Rating history

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Downloads over time

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OTOTETSU has been downloaded 35 thousand times. Over the past 30 days, it averaged 21 downloads per day.

Changelog of OTOTETSU

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Developer information for qt sound lab.

qt sound lab.

support@qtsoundlab.com

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Comments on OTOTETSU for Android

★★★★★ Yao Limb · Oct 5, 2025

It's an awesome vvvf simulation. It would be better if there were chopper motors.

★★★★☆ TAA-SEEN IQRAM (Taa-seen Music LTD) · Aug 27, 2024

It's quite useful for VF drive enthusiasts like me to create new traction motor to the train, but otherwise it looks great, the only downside I experience (which was in new update) is the waveform acceleration, braking and cruising audio making Crackling and Popping noises that some people might complain like me, which is needed to fix a problem, other words, it needs another maintenance version which I didn't like the way crackling and popping sounds appear, otherwise, great app nevertheless!

★★★★★ Withered Sculk · May 12, 2025

Extremely useful with a lot of features. Perhaps add DTC (direct torque control) and Wide-11 pulses if possible

★★★★★ Max Laganaro · Feb 18, 2022

Awesome! You can even copy the vvvf off trains in train sims, like FGC sim!

★★★★☆ Benjamin Brown · Aug 9, 2022

Please add Harmonic Elimination PWM, like on the Seoul Metro line 7 rolling stock.

Google Play Rankings for OTOTETSU

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Technologies used by OTOTETSU

4 permissions

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