Enhanced forward error correction scheme in ACELP based codec for voice over IP network services

Enhanced forward error correction scheme in ACELP based codec for voice over IP network services | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Enhanced forward error correction scheme in ACELP based codec for voice over IP network services Tarek Gueham, Fatiha Merazka This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2383440/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Forward Error Correction (FEC) is a packet loss concealment (PLC) mechanism used to recover lost packets via the transmission of a set of redundant packets along with the original ones. Given its performance in improving the end-to-end error recovery capability of lossy networks as well as maximizing the end-to-end quality of service (QoS), FEC is usually considered to be an interesting choice for real-time applications like voice over Internet protocol (VoIP). Note that this mechanism has a low efficiency against consecutive packet losses, which heavily affects the perceptual speech quality in a VoIP environment and could even produce a total desynchronization between the coder and the decoder. The objective of this paper is to introduce a new FEC scheme that can address the aforementioned issue. We use also a Time Scale Modification (TSM) procedure that enhance the performance of our proposed FEC scheme in order to further improve the performance of our scheme under severe network conditions. Subjective and objective evaluation metrics are used to evaluate the efficiency of the proposed method. Results show that the new FEC method achieves a Perceptual evaluation of speech quality (PESQ) value exceeding 3.5 at a 10% frame erasure rate with a noticeable enhancement in voice perception. Computer Architecture and Engineering VoIP EVS packet loss concealment forward error correction time scale modification MUSHRA PESQ Full Text Additional Declarations Competing interests: The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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