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7.9 DCT WITH VECTOR QUANTIZATION - Audio Signal Processin…
https://www.oreilly.com/library/view/audio-signal-processing/9780471791478/ch007-sec009.html#:~:text=As%20one%20might%20expect%2C%20however%2C%20vector%20quantization%20%28VQ%29,subject%20to%20a%20constraint%20of%20minimum%20perceptual%20distortion.
3.4 VECTOR QUANTIZATION - Audio Signal Processing …
https://www.oreilly.com/library/view/audio-signal-processing/9780471791478/ch003-sec004.html
3.4 VECTOR QUANTIZATION - Audio Signal Processing and Coding [Book] 3.4 VECTOR QUANTIZATION Data compression via vector quantization (VQ) is achieved by encoding a data-set jointly in block or vector form. Figure 3.11(a) shows an N-dimensional quantizer and a … - Selection from Audio Signal Processing and Coding [Book] Skip to main content Sign In
Application of Vector Quantization for Audio Retrieval
https://research.ijcaonline.org/volume88/number17/pxc3894021.pdf
error, and rare data high error. Hence, Vector Quantization is more suited for lossy data compression. Its use can be extended to lossy data correction and density estimation. This paper considers the audio vector quantization domain. Data …
7.9 DCT WITH VECTOR QUANTIZATION - Audio Signal …
https://www.oreilly.com/library/view/audio-signal-processing/9780471791478/ch007-sec009.html
As one might expect, however, vector quantization (VQ) has also been applied to transform coding of audio, although on a much more limited scale. Gersho and Chan investigated VQ schemes for coding DCT coefficients subject to a constraint of minimum perceptual distortion.
Vector Quantization Approach for Speaker Recognition using ...
https://www.ijcaonline.org/volume17/number1/pxc3872774.pdf
Vector Quantization (VQ) feature matching technique was used, due to high accuracy and its simplicity. The proposed investigation achieved 98.57% of efficiency with a very short test voice sample 2 seconds. Keywords GF, Triangular Filter, Subbands, Correlation, MFCC, inverted MFCC, Vector Quantization 1. INTRODUCTION
Hybrid Low Bitrate Audio Coding Using Adaptive Gain …
https://www.microsoft.com/en-us/research/publication/hybrid-low-bitrate-audio-coding-using-adaptive-gain-shape-vector-quantization/
In this paper we present a novel scheme to code audio signals at low bitrates which uses a traditional scalar quantization followed by entropy coding to code some portions of the spectrum (typically the lower portion). The other portions (typically the higher portions) of the spectrum are coded at a low bitrate using an adaptive gain shape vector quantizer where the …
Sub-Band/ADPCM audio coder using adaptive vector …
http://wseas.us/e-library/conferences/athens2000/Papers2000/414.pdf
In any case, we use adaptive vector quantization. The adaptation strategy will be described in section 4.3. For evaluation purpose, we have used 4 audio files, corresponding to string instruments (string), wind instruments (wind), piano note (piano) and vocal passage (vocal). The sampling frequency is 44.1 Khz. Currently, we have used segmental SNR to
Vector Quantization - McMaster University
https://www.ece.mcmaster.ca/~shirani/multi12/vectorq.pdf
Vector Quantization • By grouping source outputs together and encoding them we can extract the source structure and obtain efficient compression. • Source outputs are grouped into blocks or vectors of length L. • At the encoder and decoder there is a set of M, L-dimensional vectors called the code-book. ...
CiteSeerX — Citation Query Constrained Vector …
https://citeseerx.ist.psu.edu/showciting?cid=1241237&start=20
Vector quantization (VQ) is the theoretically optimal way of quantizing, and thus compressing images [1]. To achieve optimality, large dimensional codebooks are needed, but the complexity and memory required by the encoder increase e...
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