FathimaC.M, Khadeeja mol .K.U
CASA is the technique used to segregate a target speech from a monaural mixture. This article proposes a technique to separate the sinusoidal noise from monaural mixtures. Many sounds are there that are important to humans are having pseudo-periodic structure over a particular period /stretch of time. Where this fixed period is typically range of 100Hz-5KHz which gives the corresponding pitch percept.The systematic evaluation of this algorithm gives a tremendous and noticeable improvement in noise segregation.