Results 51 to 60 of about 52,438 (254)

A Packet-layer Model for Speech Quality Assessment Introducing the Analysis of Content Feature

open access: yes工程科学与技术, 2013
:A packet-layer model for speech quality assessment was proposed to monitor the quality of networked speech.Without resorting to any media-related payload information,the proposed model predicted the speech quality only in terms of the information ...
江亮亮, 李雪敏, 杨付正, 杨旭
doaj  

Interactive Multimedia Association-Adaptive Differential Pulse Code Modulation Codec With Gated Recurrent Unit Predictor

open access: yesIEEE Access
Speech coding is important for effective storage and transmission of audio signals. However, current Interactive Multimedia Association Adaptive Differential Pulse Code Modulation (IMA-ADPCM) speech coding techniques that use a fixed predictor have an ...
Gebremichael Kibret Sheferaw   +4 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

open access: yesMolecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho   +2 more
wiley   +1 more source

The Efficient Coding of Speech: Cross-Linguistic Differences.

open access: yesPLoS ONE, 2016
Neural coding in the auditory system has been shown to obey the principle of efficient neural coding. The statistical properties of speech appear to be particularly well matched to the auditory neural code.
Ramon Guevara Erra, Judit Gervain
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Three-Level Delta Modulation for Laplacian Source Coding

open access: yesAdvances in Electrical and Computer Engineering, 2017
This paper proposes a novel solution for coding of time varying signals with Laplacian distribution, which is based on delta modulation and three-level quantization.
DENIC, B., PERIC, Z., DESPOTOVIC, V.
doaj   +1 more source

FORWARD MASKING THRESHOLD ESTIMATION USING NEURAL NETWORKS AND ITS APPLICATION TO PARALLEL SPEECH ENHANCEMENT

open access: yesInternational Islamic University Malaysia Engineering Journal, 2010
Forward masking models have been used successfully in speech enhancement and audio coding. Presently, forward masking thresholds are estimated using simplified masking models which have been used for audio coding and speech enhancement applications.
T. S. Gunawan   +2 more
doaj   +1 more source

Transcripts enriched in codons that trigger P‐site tRNA‐mediated mRNA decay possess stable mRNA

open access: yesFEBS Open Bio, EarlyView.
PTMD codons were first described by Mendel et al. as mediators of an mRNA decay pathway dependent on the human protein CNOT3, homologous to yeast Not5. Our findings confirm that PTMD codons destabilize transcripts; however, unlike in yeast, the human pathway specifically targets and slightly destabilizes primarily stable mRNAs.
Rodolfo Lopes Carneiro   +1 more
wiley   +1 more source

Optimizing speech quality and intelligibility through noise-aware enhancement for coding application

open access: yesDiscover Computing
Significant advancements in speech coding research have been made in recent years, yet effect of background noise remain as a major cause of performance degradation.
Mohamed Anees   +3 more
doaj   +1 more source

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