Spy Recorder - automatic voice recorder for Android. "Reasonable" record sound stop recording during silence and only records when there is noise. The noise level is set in the settings. Convenient timer function - recording is activated for a given time, and the screen is not activated. In addition, there is a choice of sound quality and file compression OGG. Well, and also standard it can be used as a voice recorder. It should be noted that phone calls are not recorded.