Lossless audio coding using adaptive linear prediction

... Backward-Compatible (BC) MPEG- 2 /Audio Coding • Advanced /MPEG- 2 /Audio Coding (AAC) • Simulcast Transmission • Subjective Tests Peter Noll Technical University of Berlin 40. 1 40. 5 MPEG- 4 /Audio Coding 40. 6 Applications ... Allocation 40. 3 MPEG- 1 /Audio Coding The Basics • Layers I and II • Layer III • Frame and Multiplex Structure • Subjective Quality 40. 4 MPEG-...

Ngày tải lên: 22/01/2014, 12:20

... 41 Digital Audio Coding: Dolby AC-3 41. 1 Overview 41. 2 Bit Stream Syntax 41. 3 Analysis/Synthesis Filterbank Window Design • Transform Equations 41. 4 Spectral Envelope 41. 5 Multichannel ... industries The audio technology used in the ATSC digital audio compression standard [1] is Dolby AC-3 Dolby AC-3 is an audio compression technology capable of encoding...

Ngày tải lên: 22/01/2014, 12:20

... experiments: The problem of chaotic convergence behaviour of EM estimation can be solved for log-linear models EM does help constraint-based grammars, e.g using about 10 times more sentences and about 100 ... presented a new approach to stochastic modeling of constraint-based grammars Our experimental results show that EM training can in fact be very helpful for a...

Ngày tải lên: 20/02/2014, 18:20

... available Merging channels together into a single signal may result in a loss of spatial information, the worst case occurring when every channel contains different musical instruments In this case, ... and energy for musical onset detection in the complex domain, ” IEEE Signal Processing Letters, vol 11, no 6, pp 553– 556, 2004 K Jensen, “Causal rhythm grouping,” in Proceedin...

Ngày tải lên: 21/06/2014, 05:20

... will be used for the CIR system Information Theoretical Analysis Let us consider a system where opportunistic network coding [9] is used As described in Section 2, opportunistic Network Coding consists ... rate LDPC encoder for sink M UM Sink N N Sink CSI for all sinks(γ vector) Figure 3: Transmission scheme at source node for the proposed adaptive transmission sch...

Ngày tải lên: 21/06/2014, 11:20

... finite number of dominant frequency components In this way, the majority of audio signals is covered, except for the class of percussive sounds The performance of the different LP models described ... be evaluated for three types of audio signals: synthetic audio signals consisting of a sum of harmonic sinusoids in white noise, true monophonic audio signals, and true...

Ngày tải lên: 22/06/2014, 00:20

... behind compressive sensing and distributed source coding, that constitute the underlying theory of the proposed tampering identification system In spite of the relatively large amount of literature ... audio fingerprints by collecting and quantizing a number of robust and informative features from an audio file, with the purpose of audio identification as well...

Ngày tải lên: 22/06/2014, 00:20

... overall method of improved linear prediction using refined autocorrelation (LPRA) function is outlined in the block diagram of Figure Real cepstrum is computed from the autocorrelation function ... the refined autocorrelation function rh (i), which closely approximates the true autocorrelation coefficients especially in lower lags that are the most important for formant analysis...

Ngày tải lên: 22/06/2014, 19:20

... comparison of the proposed technique with all audio coding techniques would be out of the scope of this paper The objective of this paper is to demonstrate the application of ATFT for coding audio signals ... novel ATFT coding technique for wideband audio signals The proposed approach demon- 13 strated the application of adaptive time-frequency transform for a...

Ngày tải lên: 22/06/2014, 19:20

... Error! sources + 1000 2000 3000 + 4000 5000 6000 x (c) Figure 13: Source localization using SRP-PHAT (a) Single source, (b) single source (2D projection), and (c) multiple sources Estimated source ... and R Rabenstein, Joint audio- video signal processing for object localization and tracking,” in Microphone Arrays: Signal Processing Techniques and Applications, M S Brandst...

Ngày tải lên: 22/06/2014, 23:20

... scalability, Tagliasacchi et al [15] have proposed a spatial and temporal scalable codec using distributed source coding They use the standards-conformant H.264/AVC to encode the base layer, and ... issue on advances in video coding and delivery [9] A Sehgal, A Jagmohan, and N Ahuja, A state-free causal video encoding paradigm,” in Proceedings of IEEE International Conferen...

Ngày tải lên: 22/06/2014, 23:20

... reference, , (4) where r j is the coding rate and Γ j is the SNR gap determined by the performance of the modulation and coding schemes in use The floor operation (i.e., x = m for the largest integer m ... observed in [5, 6, 13] (ii) PPO Case: In this case, ε j = εmax ; for all j ∈ Ω, that is, j x , l ADAPTIVE REED-SOLOMON- BASED FINE-GRANULARITY LOADING SCHEME Pe,dec Pe,ch ,...

Ngày tải lên: 22/06/2014, 23:20

... recording of a classic guitar and an electric guitar for testing The coding of the guitar tones using a combination of physical modelling and warped linear predictive coding is outlined in Section ... real-time parameterization and coding problem for string modelling in the marriage of two common techniques, the basic plucked string physical model and warped l...

Ngày tải lên: 23/06/2014, 01:20

... Grossman M (1989) Marker assisted selection using best linear unbiased prediction Gen Sel Evol 21, 467-477 Goddard ME (1991) A mixed model for analyses of data on multiple genetic markers Theor Appl ... element of W NGe: W! is 2r (I - r) (if marker information is available) or 1/2 (if marker information is unavailable) This occurs because, in the absence of marker info...

Ngày tải lên: 14/08/2014, 20:20

... the background of lossless audio coding, including some fundamentals of source coding, basic principles of audio coding, linear prediction coding techniques and several entropy coding algorithms ... LIST OF FIGURES Fig 2.1: The principle of lossless audio coding - Fig 3.1: Lossless audio coding encoder - 16 Fig 3.2: Lossless audio coding decoder - 16 Fig 4.1...

Ngày tải lên: 10/11/2015, 11:28