Title :
Modified time-domain LS FIR filter design for musical notes
Author :
Wong, A.K.K. ; Leung, S.H. ; Lau, W.H.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
fDate :
2/18/1999 12:00:00 AM
Abstract :
A modified time-domain least-squares (MTLS) finite impulse response filter design method for transforming musical notes is introduced. The method is based on a new criterion called total harmonic gain to noise ratio (THGNR) in addition to the least-squares criterion. The THGNR criterion aims to reduce the noise gain of the filter. Compared to the time-domain least-squares finite impulse response filter design method, the MTLS offers a better solution, which has low noise gain and small time-domain distortion
Keywords :
FIR filters; digital filters; harmonic distortion; least squares approximations; time-varying filters; filter design; musical notes; noise gain; time-domain LS FIR filter; time-domain distortion; total harmonic gain to noise ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990249
