Results 31 to 40 of about 62,294 (212)

Efficient bandwidth extension of musical signals using a differentiable harmonic plus noise model

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2023
The task of bandwidth extension addresses the generation of missing high frequencies of audio signals based on knowledge of the low-frequency part of the sound. This task applies to various problems, such as audio coding or audio restoration.
Pierre-Amaury Grumiaux, Mathieu Lagrange
doaj   +1 more source

A survey on Rijndael based LSB Audio Steganography techniques

open access: yesWasit Journal for Pure Sciences, 2023
The need to protect multimedia data security—including audio, video, and text—and the data it contains has persisted, whether in physical or digital form.
sajaa g.mohammed
doaj   +1 more source

A cognitive approach to user perception of multimedia quality: An empirical investigation [PDF]

open access: yes, 2006
Whilst multimedia technology has been one of the main contributing factors behind the Web's success, delivery of personalized multimedia content has been a desire seldom achieved in practice.
Apteker   +31 more
core   +1 more source

Perceptually Enhanced Bit-Plane Coding for Scalable Audio [PDF]

open access: yes2006 IEEE International Conference on Multimedia and Expo, 2006
The MPEG-4 Scalable to Lossless (SLS) audio coding is recently being developed to provide a unified solution for high - compression perceptual audio coding and high-quality lossless audio coding. SLS provides efficient Fine Granular Scalable (FGS) coding from AAC core layer to lossless, and achieves reasonable perceptual quality at its scalable coding ...
Rongshan Yu, Te Li, Susanto Rahardja
openaire   +1 more source

Enhancing LSB Using Binary Message Size Encoding for High Capacity, Transparent and Secure Audio Steganography–An Innovative Approach

open access: yesIEEE Access, 2022
We propose a novel LSB-BMSE method that enhances LSB audio steganography. It uses an innovative mechanism, Binaries of Message Size Encoding (BMSE), to embed a secret message after hiding its size in random samples.
Mahmoud M. Mahmoud, Huwaida T. Elshoush
doaj   +1 more source

Perceptually-Driven Video Coding with the Daala Video Codec [PDF]

open access: yes, 2016
The Daala project is a royalty-free video codec that attempts to compete with the best patent-encumbered codecs. Part of our strategy is to replace core tools of traditional video codecs with alternative approaches, many of them designed to take ...
Bankoski   +23 more
core   +1 more source

The Development of Digital Audio Coding

open access: yesTongxin xuebao, 1995
The psychoacoustic models used in perceptnal audio coding are described. The algorithm and realtime hardware implement complexity of MPEG/Audio,Dolby AC-2 ,and AC-3 are introduced.The result of the MPEG/Audio multichannel subject listening tests are ...
Guo Ke
doaj   +2 more sources

Perancangan dan Analisis Kinerja Pengkodean Audio Multichannel dengan Metode Closed Loop

open access: yesJurnal Nasional Teknik Elektro, 2014
The latest international standardized codec is MPEG Surround. But the open-loop system of the MPEG Surround not able to minimize errors. In this research, the design and performance analysis of the audio coding in MPEG Surround with closed-loop method ...
Muhammad Sobirin, Ikhwana Elfitri
doaj   +3 more sources

Acoustic research for telecoms: bridging the heritage to the future

open access: yesActa Acustica, 2023
In its early age, telecommunication was focused on voice communications, and acoustics was at the heart of the work related to speech coding and transmission, automatic speech recognition or speech synthesis, aiming at offering better quality (Quality of
Nicol Rozenn, Monfort Jean-Yves
doaj   +1 more source

A user perspective of quality of service in m-commerce [PDF]

open access: yes, 2004
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2004 Springer VerlagIn an m-commerce setting, the underlying communication system will have to provide a Quality of Service ...
Angelides, MC, Ghinea, G
core   +1 more source

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