1. In a system in electronic communication with a database having media data, the media data including audio recordings of calls and metadata associated with the calls, a computer-implemented method comprising: accepting user input specifying a set of criteria that define a call series indicative of a plurality of content-related audio recordings, the set of criteria including a minimum number of calls sharing a common caller identifier within a defined time interval; forming a representation of a set of one or more call series based on the user input, including identifying as a call series each of one or more pluralities of content-related audio recordings that satisfies the set of criteria; processing the representation of the set of one or more call series to generate an analysis report; and performing a content-based analysis of the media data that includes applying a phonetically based word-spotting technique to search for occurrences of one or more queries in the metadata, the metadata including a searchable phonetic representation of the media data.
1. In a system in electronic communication with a database having media data, the media data including audio recordings of calls and metadata associated with the calls, a computer-implemented method comprising: accepting user input specifying a set of criteria that define a call series indicative of a plurality of content-related audio recordings, the set of criteria including a minimum number of calls sharing a common caller identifier within a defined time interval; forming a representation of a set of one or more call series based on the user input, including identifying as a call series each of one or more pluralities of content-related audio recordings that satisfies the set of criteria; processing the representation of the set of one or more call series to generate an analysis report; and performing a content-based analysis of the media data that includes applying a phonetically based word-spotting technique to search for occurrences of one or more queries in the metadata, the metadata including a searchable phonetic representation of the media data. 15. The computer-implemented method of claim 1 , further comprising: forming a visual representation of the analysis report for presentation to a user.