Title :
Real-time fundamental frequency estimation by least-square fitting
Author_Institution :
Dept. of Comput. Sci., Hong Kong Univ., Hong Kong
fDate :
3/1/1997 12:00:00 AM
Abstract :
For real-time applications, a fundamental frequency estimation algorithm must be able to obtain accurate estimates from short signal segments. Characterization of the error function of fitting a sinusoid to the signal segment allows its spectrum to be deduced and the algorithm to be implemented efficiently. Musical signals are discussed in particular
Keywords :
acoustic signal processing; error analysis; frequency estimation; least squares approximations; music; spectral analysis; error function; least-square fitting; real-time fundamental frequency estimation; short signal segments; sinusoid; spectrum; Algorithm design and analysis; Automatic control; Delay effects; Digital control; Frequency domain analysis; Frequency estimation; Instruments; Signal analysis; Spectral analysis; Synthesizers;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
