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The performance of speaker verification system (SVS) declines dramatically in noisy environments. To suppress the adverse impact of the noise on SVS, this paper investigates employing the nonnegative matrix factorization (NMF) technique to reconstruct the speech based on the pre-trained speech basis matrix (SBM) and noise basis matrix (NBM). The(More)
This paper proposed a new improved fast floating 4-point discrete cosine transform (DCT) algorithm applied in image compression based on JPEG. This 1-D 4-point DCT algorithm employs only 1 multiplication without increasing the number of add operation. This new algorithm saves 50% multiplications of the fastest algorithm proposed in the past.
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