To enhance speech signal by reducing the redundancy within samples that resulted from uniform sampling method like PCM, non-uniform sampling or non-redundant-sample coding methods can be considered. However, it is well known that when conventional non-uniform sampling methods are applied directly to speech signal, the required amount of data in the computation is comparable to or more than that of uniform sampling method. To overcome this problem, a new non-uniform sampling method is proposed, in which non-uniform sampling is applied to the speech signal after using the low pass filter and the remain signals are compensated by the rectified signals with various harmonics frequencies.
- Non-uniform sampling
- Peak and valley
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Sohn, J., Kim, N.S., Sung, W.: A statistical model-based voice activity detector. IEEE Signal Processing Lett. 6(1), 1–3 (1999)
Accardi, A.J., Cox, R.V.: A modular approach to speech enhancement with an application to speech coding. J. Acout. Soc. Am. 10(3), 1245 (2001)
Jeong, C.-J., Bae, M.-J.: Analysis regarding vocalizations of teuroteu singers, The institute of electronics engineers of Korea, Summer scholarship contest of 2009, pp. 1090–1091 (2009)
Bae, M.J., Lee, S.H.: Digital Voice Signal Analysis, ch. 3, p. 6. Books Publishing Dong Young (1998)
Gazor, S., Zhang, W.: A soft voice activity detector based on a Laplacian-Gaussian model. IEEE Trans. Speech Audio Processing 11(5), 498–505 (2003)
Agarwal, T., Kabal, P.: Pre-processing of noisy speech for voice coders. In: Proc. IEEE Workshop on Speech Coding, Tsukaba, Japan, pp. 169–171 (October 2002)
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Bae, S., Park, H., Bae, M. (2012). On a New Enhancement of Speech Signal Using Non-uniform Sampling and Post Filter. In: Kim, Th., Mohammed, S., Ramos, C., Abawajy, J., Kang, BH., Ślęzak, D. (eds) Computer Applications for Web, Human Computer Interaction, Signal and Image Processing, and Pattern Recognition. ICHCI WSE SIP 2012 2012 2012. Communications in Computer and Information Science, vol 342. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35270-6_9
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Print ISBN: 978-3-642-35269-0
Online ISBN: 978-3-642-35270-6