digital signal processing ppt

... desired response signal d(n) consists of a sum of a broadband signal and a nearly periodic signal, and it is desired to separate these two signals without specific knowledge about the signals (such ... y(n) is computed. The output signal is compared to a second signal d(n), called the desired response signal, by subtracting the two samples at time n. This difference signal, given by e(n) = d(n) ... consult journals such as the IEEE Transactions on Signal Processing as well as the proceedings of yearly conferences and workshops in the signal processing and related fields. References [1] Kuo,...

Ngày tải lên: 13/12/2013, 00:15

... models of stationary random processes, whether signal or noise, have been found to be useful in a wide variety of signal processing tasks such as signal detection, estimation, filtering, and classification, ... N. (16.30) c  1999 by CRC Press LLC [17] Kassam, S.A., Signal Detection in Non-Gaussian Noise, Springer-Verlag, New York, 1988. [18] Shao, M. and Nikias, C.L., Signal processing with fractional lower order moments: ... fitting. c  1999 by CRC Press LLC Tugnait, J.K. “Validation, Testing, and Noise Modeling” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca Raton: CRC Press...

Ngày tải lên: 13/12/2013, 00:15

... s(n) ) 2 (32.35) where s(n) is the input speech signal and y(n) is the output speech signal. The two signals are sufficiently staggered to account for the delay in the processing. The signal- to-noise-ratios were ... these methods demand a lot of memory and processing power. RAP operates on only one row at a time, which makes it a useful sample-by-sample method in adaptive signal processing. Further, the matrix A ... for speech processing, Intl. Symp. Signals, Syst. Electron., San Francisco, CA, 1995. [23] Miyoshi, M. and Kaneda, Y., Inverse filtering of room acoustics, IEEE Trans. Acoustics, Speech, Signal Process., 36(2),...

Ngày tải lên: 22/12/2013, 21:17

... on Applications of Signal Processing to Audio and Acoustics, 1989. [17] Sinha,D.andTewfik,A.H.,Lowbitratetransparentaudiocompressionusingadaptedwavelets, IEEE Trans. Signal Processing, 41(12), ... typical (trumpet) signal. The staircase curve is thecalculated perceptual threshold, and thevarying curve is the short- term spectrum of the trumpet signal. Note that a great deal of the signal is below ... Filterbank — Converts the input signal into a form that extracts redundancies and is suitable for perceptual processing. ã Perceptual model Determines the irrelevancies in the signal, generates a perceptual threshold,...

Ngày tải lên: 19/01/2014, 19:20

... windows becauseofitsnear-optimaltransitionbandslopeandgoodultimaterejectioncharacteristic. Ascalar c  1999 by CRC Press LLC Davidson, G.A. Digital Audio Coding: Dolby AC-3” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca ... audio compressionalgorithmsistomaximallyreducetheamountofdigitalinformation(bit-rate)required for conveyance of an audio signal while rendering differences between the original and decoded signals inaudible. Digital audio compressionisusefulwhereverthereisaneconomicbenefitrealizedbyreducingthe bit-rate. ... Overview Inordertomoreefficientlytransmitorstorehigh-quality audio signals, it is oftendesirabletoreduce the amount of information required to represent them. In the case of digital audio signals, the amount of binary information...

Ngày tải lên: 19/01/2014, 19:20

... 5-channel signal, and a subsequent down-mixingofthelatteroneintoa2-channelsignal[55]. The2-channelsignal, threecontributions fromthe 5-channel signal, and two contributions from the 7-channel signal ... uses the 2-channel signal directly, or it employs matrixing to reconstruct 5- or7-channelsignals. Otherformats arepossible, suchasstoringa 5-channelsignalandan additional stereosignalinsimulcastmode,withoutdown-mixingthestereosignalfromthemultichannelsignal. A ... and Signal Process., ASSP-34, 1153–1161, 1986. [22] Malvar, H.S., Signal Processing with Lapped Transforms, Artech House, 1992. [23] Yeoh, F.S. and Xydeas, C.S., Split-band coding of speech signals...

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20