31. The system of claim 30 , wherein the first time stamp of the first detected touchless gesture corresponds to a start of the first detected touchless gesture; and wherein the second time stamp corresponds to an end of the first detected touchless gesture or a start of a next detected touchless gesture corresponding to the first mode.
30. A system for processing detected audio waveforms in a first mode and a second mode, comprising: means for detecting one or more audio waveforms and time stamping the one or more audio waveforms; means for detecting one or more touchless gestures corresponding to one or more modes and time stamping a starting time and an ending time of each of the detected one or more touchless gestures; means for storing the one or more audio waveforms and information regarding the one or more gestures; and means for entering the second mode and selectively processing an audio waveform from the one or more audio waveforms in the second mode when a time stamp of the audio waveform is between a first time stamp of a first detected touchless gesture of the one or more touchless gestures corresponding to the second mode and a second time stamp associated with one of the one or more touchless gestures.