Original sentence: The Nintendo DSi Shazam is Called ShazamDSi For Free Download on Nintendo DSi Shop
Edited sentence: An acoustic fingerprint is created based on the sample, and is compared against a central database for a match.An implementation of Shazam for the Nintendo DSi, called ShazamDSi, is available as a free download from the Nintendo DSi Shop.If a match is found, information such as the artist, song title, and album are relayed back to the user.Pairs of these peak values are compared against the main database to locate matching songs.Relevant links to services such as YouTube or iTunes are incorporated into some implementations of Shazam.Shazam uses a cell phone's built-in microphone to gather a brief sample of music being played.The "acoustic fingerprints" used by Shazam are based on spectrograms that have been generalized to a group of peak intensity frequencies.The classical genre is expansive and contains large amounts of similar-sounding music that would be problematic to catalog.a technical paper explaining how Shazam works