Proceedings ArticleDOI
Audio Coding with Signal Adaptive Block based Filter Bank Switching
Muhammad Mazhar Saleem
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TLDR
An improved efficiency perceptual audio codec is presented which analyzes each block of input signal and selects a suitable time/frequency mapping transform for it, compared with the widely famous MPEG-1 Layer-III algorithm.Abstract:
An improved efficiency perceptual audio codec is presented which analyzes each block of input signal and selects a suitable time/frequency mapping transform for it. The selection is based on statistics of the input signal vis-a-vis energy compaction and resolution power properties of the transforms employed which include the DFT (uniform subbands), DFT (critical subbands), DCT and CELP( for speech only blocks). The performance of the codec is compared with the widely famous MPEG-1 Layer-III algorithm. Efficiency enhancement is indicated by improved grades of subjective listening test for the proposed codec compared to those for MPEG-1 Layer-III at similar bit rates.. The paper concludes with a discussion of future research implications of the work.read more
Citations
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Proceedings ArticleDOI
A Study on the Best Wavelet for Audio Compression
Rodrigo Capobianco Guido,Carlos Dias Maciel,Mauricio Monteiro,Everthon Silva Fonseca,Sankaran Panchapagesan,José Carlos Pereira,Lucimar Sasso Vieira,Sylvio Barbon Junior,Marcio Alonso Borges Guilherme,Kim Inocencio Cesar Sergio,Thais Lorasqui Scarpa,Paulo Cesar Fantinato,Emerson Jesus Rodrigues de Moura +12 more
TL;DR: This study proposes the use of a particular family of wavelets, and the adaptive choice of the corresponding filters' length, according to the proposed cost function and the input audio file being encoded.
Proceedings ArticleDOI
Control of torque in switched reluctance motor
Y. Saleem,Tahir Izhar +1 more
TL;DR: Two quadrant and four quadrant chopper operation is discussed mathematically and simulated in Matlab, results aided with graphs are discussed to conclude which drive provides better control over phase currents.
Dissertation
Efficient Audio Coding Employing Novel Techniques a Codec Selector Algorithm
TL;DR: In this thesis several new techniques are developed within the paradigm of perceptual audio coding to enhance the coding efficiency and produce better output quality at reduced bit rates.
References
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Proceedings ArticleDOI
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