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by ShinyCyril 4343 days ago
The actual identification of individual songs is done using the Echonest API (they have a huge database of song hashes).

Before this can be done however, the placement of each song within the audio track as a whole needs to be determined, which is done with a combination of ffmpeg and C. Currently this process is quite slow and inaccurate - I'm trying to learn some ML theory at the moment with the hope of improving it!