You can perform audio extraction searches to locate specific words or phrases within heterogeneous audio files. As part of audio extraction, keyword discovery is used to automatically find occurrences of keywords of interest in spoken documents. Keyword targeting is also used to gain valuable insights from massive amounts of voice recordings. The technology only needs to specify single or multiple instances of keywords to find in the speech corpus. It also identifies all audio portions with keyword occurrences. Keyword detection also provides the statistical information needed for various applications [3]. It is used online (for example: real-time flow monitoring) and also offline (for example: data mining and indexing)