Speech Signal Similarity

A method for determining a similarity between a first audio source and a second audio source, the method comprising:

• generating, using a computer, a phonetic transcript of the first audio source, the phonetic transcript including a list of phonemes occurring in the first audio source;
• searching the second audio source for each phoneme included in the phonetic transcript using the computer;
• generating, using the computer, an overall search result for the second audio source, the overall search result including results from the searching;
• and
• generating, using the computer, a score representative of a similarity between the first audio source and the second audio source, the score based on the overall search result.

A method comprising:

• comparing an audio track of a first multimedia source with an audio track of a second multimedia source, the second multimedia source being associated with text content corresponding to closed captioning;
• determining a similarity score representative of a similarity between the audio track of the first multimedia source and the audio track of the second multimedia source based on the results of the comparing;
• and
• associating at least some of the text content corresponding to the closed captioning with the first multimedia source if the determined similarity score exceeds a predefined threshold.