what is the meaning of absolute score of similarity and which threshold can represent good accuracy

[Kunal Verma]

java doc for score is not clear - "Number of features found in the fingerprints per frame". Which threshold can represent good accuracy. I compared same audio files and score was 3. When I compared part of same audio file score was 1.2. In some of the examples, results of 0.2 score have been discussed. Which score represents that sound is not similar e.g. is score of 0.2 or 0.1 or 0.5 can be termed that sounds are not similar.

[navneet singh]

Any update as on this as I also have similar doubt.