Knowledge-based information can be captured and processed to create a library of such knowledge. A maintenance worker performing a task for an asset can record audio and/or video information during the performance, and can upload the recording to a maintenance system. The system processes the recording to produce a text file corresponding to any speech during the recording, and generates a search index allowing the text file to be searched by a user. If the task is performed in the context of a work order, for example, information from the work order can be associated with the text file so that a user can search by text search, keyword, task, or other such information. A user then can locate and access the text file and/or the corresponding recording for playback.