The problem here is the microphone voice that is checked in between always easy.
An example of this can be found below in the source is acknowledged.
Not only the TeamSpeak, Skype or InSpeech options (which provide computer games), but
even in normal recording programs such as Audacity this problem exists.
The following workaround contained an error, but does not eliminate them.
You have to change the quality of the microphone. -> Namely "1 channel 16 bit, 32000 Hz (FM radio quality)"
Also various drivers, Logitech (new or old) and Razor-drivers do not help.
Testing the headset to other computers also led to no good result.
The problem is in the Logitech forum known for some time, an official solution, there are currently not.
Conclusion:
Due to this error, the product gets 1 star because of this error has been known and the operation of the headset is severely impaired.
Sources:
1) forums.logitech.com/t5/Headphones-Headsets-Microphones/g430-microphone-fading-in-out-when-I-speak/td-p/1214902
1) forums.logitech.com/t5/Headphones-Headsets-Microphones/G430-fading-mic-sound/td-p/1033609