To perform quality control with respect to positioning of survey hardware, survey navigation data is acquired regarding components of the survey hardware used to perform a survey operation with respect to a subterranean structure. The user interface permits a user to submit a request for navigation information, receive visual route guidance information in response to the request and initiate a drive-thru presentation of at least a portion of a route. The invention further applies a gain control based on the two speech input devices to the resultant subtracted power spectrum to obtain a gain-controlled power spectrum ).