A computer-aided-diagnosis system for neuromuscular diseases using Mel frequency Cepstral coefficients

Research on lightweight synchronization recognition algorithms for multiple acoustic sources in a photoacoustic sensor system based on Sagnac interference

“…Mel spectrogram features are extracted from the optical-acoustic signals collected by the Sagnac fiber optic acoustic sensing system [17]. The Mel spectrogram converts sound frequencies to Mel scale frequencies through triangular filter banks, and the logarithmic relationship between sound frequencies and Mel frequencies is described by Equation (2) [18], where Mel is the Mel frequency, f is the actual frequency in Hz.…”