Linear-frequency cepstral coefficients for speaker recognition.
Arguments
- .xptr
Not for direct use. External pointer to the underlying C++ LFCC
object; set internally when a method returns a new LFCC.
Value
An LFCC object with methods for linear-frequency cepstral
coefficient analysis.
Details
LFCCs are similar to MFCCs but use a linear frequency scale instead of
the mel scale. They are derived from LPC analysis and are useful for
speaker recognition tasks. Uses a shared dispatch table for minimal memory
per object.
Examples
sound <- Sound$create_tone(frequency = 150, duration = 0.3)
lpc <- sound$to_lpc_burg(prediction_order = 16)
lfcc <- lpc$to_lfcc(num_coefficients = 12)
coefs <- lfcc$get_all_coefficients()
lpc2 <- lfcc$to_lpc(num_coefficients = 16)