Multiple comb filters and autocorrelation of the multi-scale product for multi-pitch estimation
Sign Up to like & getrecommendations! Published in 2017 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2017.01.013
Abstract: Abstract This paper presents a new method that estimates the fundamental frequency in the case of a real noisy environment when many persons speak at the same time and considers the case of two speakers.… read more here.
Keywords: comb filters; pitch; multiple comb; scale product ... See more keywords
Tunable and channel spacing precisely controlled comb filters based on the fused taper technology.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.000265
Abstract: We propose and demonstrate an adjustable all-fiber comb filter with precisely controlled channel spacing by employing a tapered fiber in one arm of a Mach-Zehnder interferometer (MZI) for the first time. Using fused taper technology… read more here.
Keywords: comb filters; fused taper; channel spacing; taper technology ... See more keywords