Results 11 to 20 of about 8,891 (303)

Audio Compression on Multimedia Compression Techniques

open access: yesInternational Journal of Advanced Research in Science, Communication and Technology, 2023
Recently, the study of audio compression has become more prominent. Today's apps make use of advancements in audio signal processing, including advanced audio coding (AAC), perceptual audio coding techniques (MP3 encoding), internet radio, and other lossless audio coding systems.
null Hema P, null Kala L
openaire   +1 more source

Case Report: Women, Be Aware that Your Vocal Charisma can Dwindle in Remote Meetings

open access: yesFrontiers in Communication, 2021
Remote meetings via Zoom, Skype, or Teams limit the range and richness of nonverbal communication signals. Not just because of the typically sub-optimal light, posture, and gaze conditions, but also because of the reduced speaker visibility. Consequently,
Ingo Siegert, Oliver Niebuhr
doaj   +1 more source

Autocorrelation Modulation-Based Audio Blind Watermarking Robust Against High Efficiency Advanced Audio Coding

open access: yesApplied Sciences, 2019
High Efficiency Advanced Audio Coding (HE-AAC) is a lossy compression method for digital audio data which supplies high-quality audio at a very low bit rate.
Yiyu Hong, Jongweon Kim
doaj   +1 more source

Comparing audio- and video-delivered instructions in dispatcher-assisted cardiopulmonary resuscitation with drone-delivered automatic external defibrillator: a mixed methods simulation study [PDF]

open access: yesPeerJ, 2021
This study compared first responders’ cardiopulmonary resuscitation (CPR) performance when a dispatcher provides audio instructions only and when both audio and video instructions are given.
Hyun-Jung Kim, Jin-Hwa Kim, Dahye Park
doaj   +2 more sources

Manipulation of compressed data using MPEG-7 low level audio descriptors

open access: yesJournal of Telecommunications and Information Technology, 2003
This paper analyses the consistency of a set of MPEG-7 low level audio descriptors when the input audio stream has previously been compressed with a lossy compression algorithm.
Jason Lukasiak   +3 more
doaj   +1 more source

Prototipe Kompresi Lossless Audio Codec Menggunakan Entropy Encoding

open access: yesComTech, 2010
The purpose of this study was to perform lossless compression on the uncompress audio file audio to minimize file size without reducing the quality. The application is developed using the entropy encoding compression method with rice coding technique ...
Andreas Soegandi
doaj   +1 more source

Perceptual Coding of Audio Signals Using Adaptive Time-Frequency Transform

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2007
Wide band digital audio signals have a very high data-rate associated with them due to their complex nature and demand for high-quality reproduction.
Umapathy Karthikeyan, Krishnan Sridhar
doaj   +2 more sources

Smartphone-Based Hearing Aid Compression and Noise Reduction

open access: yesSensors, 2022
This paper presents an assistive hearing smartphone app mimicking the two main functions of hearing aids, consisting of compression and noise reduction. The app is designed to run in real time on smartphones or tablets.
Aoxin Ni, Nasser Kehtarnavaz
doaj   +1 more source

AMBIQUAL: Towards a Quality Metric for Headphone Rendered Compressed Ambisonic Spatial Audio

open access: yesApplied Sciences, 2020
Spatial audio is essential for creating a sense of immersion in virtual environments. Efficient encoding methods are required to deliver spatial audio over networks without compromising Quality of Service (QoS).
Miroslaw Narbutt   +5 more
doaj   +1 more source

A Novel Audio Aggregation Watermarking Algorithm Based on Copyright Protection [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2014
A novel algorithm of audio aggregation watermarking was proposed in this paper for copyright protection. The algorithm not only protects copyright of a single audio in audio aggregation but also protects copyright of the whole audio aggregation.
Rangding Wang   +4 more
doaj   +1 more source

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