Wii U's November launch date is knocking at the doorstep and in the latest "Iwata Asks" series, Nintendo's engineers discussed the building of the console's GamePad and seemed skeptical about the motion controls.

Nintendo is allowing users to utilize motion controls, while switching to the GamePad's smaller screen, by pressing the plus-minus buttons together. Users can switch between GamePad and the television when playing a game, for example, allowing other members of the family to use the TV.

"It's extremely tough, wirelessly, to have players hold the Wii U GamePad and move with it because of the Doppler effect.To be honest, I even thought, 'No, please don't!'" Nintendo product development engineer Kenichi Mae said in the question-and-answer session.

The Doppler effect in real-world situations is when a sound distorts depending on the object's distance from a person. For example, a Formula 1 Car will change in sound as it drives by the audience. Similarly, sirens from an emergency response vehicle sound different after driving past.

This issue is related to Wii U since the signal sent to the console may distort if moving GamePad around. An option may be to use the Wii Remote and Nuchuck instead, or Wii U's Pro Controller.

The engineers also talked of avoiding latency when using Wii U GamePad.

"Generally, for a video compression/decompression system, compression will take place after a single-frame of image data has been put into the IC [integrated circuit]. Then it is sent wirelessly and decompressed at receiving end. The image is sent to the LCD monitor after decompression is finished. But since that method would cause latency, this time, we thought of a way to take one image and break it down into pieces of smaller images. We thought that maybe we could reduce the amount of delay in sending one screen if we dealt in those smaller images from output from the Wii U console GPU [graphics processing unit] on through compression, wireless transfer, and display on the LCD monitor," noted Kuniaki Ito of the Product Development Department, Integrated Research and Development Division.

Wii U launches Nov. 18 in the U.S., and Nov. 30 in the UK, Europe, Australia, and New Zealand.