OTOTETSU

qt sound lab.

About this app

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.

[System Requirements]
Android 10 or later

Ratings and reviews

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!

It's really good. By the way, can you add throttle lever instead buttons for the control? Thank you. Edit: The latest update version is amazing. Thank you for the update🙏🙏😭

It's a great overall app, The only thing I dislike is that there's no Selective Harmonic Elemination or Current Harmonic Minimum pulse types.

What’s new

- You can now copy and paste inverter configurations.