In this article, the author explains how the popular app Shazam identifies songs by using a spectrogram-based fingerprinting method. The author highlights that while the algorithm may have evolved over time, the core principles of audio identification systems remain the same. The article breaks down the process of identifying songs, including calculating spectrograms, finding peaks, and creating hashes. The author also mentions the importance of unique fingerprints and the efficiency of using spectrogram peaks. Overall, the article provides a detailed overview of how Shazam works and offers insights into the technical aspects of audio recognition technology.
https://www.cameronmacleod.com/blog/how-does-shazam-work