Essays about: "POLQA"

Found 4 essays containing the word POLQA.

  1. 1. Evaluation of the Perceived Speech Quality for G729D and Opus : With Different Network Scenarios and an Implemented VoIP Application

    University essay from Linköpings universitet/Informationskodning

    Author : Louise Almér; [2022]
    Keywords : Compression; Codec; audio; speech quality; quality of experience;

    Abstract : Communication has always been a vital part of our society, and day-to-day communication is increasingly becoming more digital. VoIP (voice over IP) is used for real-time communication, and to be able to send the information over the internet must the speech be compressed to lower the number of bits needed for transmission. READ MORE

  3. 2. Homomorphic Encryption for Audio Conferencing

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Herman Nordin; Ebba Lindström; [2022]
    Keywords : Homomorphic encryption; VoIP; security; audio conferencing; cryptography;

    Abstract : Homomorphic encryption (HE) enables computations on encrypted data making it possible to perform calculations on a server without sharing the secret key for decryption. HE is relatively new and has seen significant improvements in recent years in terms of speed of encryption, decryption, operations, and the number of operations possible to perform in a row without damaging the ciphertext. READ MORE

  4. 3. Speech Intelligibility Measurement on the basis of ITU-T Recommendation P.863

    University essay from Laboratoriet för intelligenta system

    Author : SWATANTRA GHIMIRE; [2012]
    Keywords : Speech Intelligibility; POLQA;

    Abstract : Objective speech intelligibility measurement techniques like AI (Articulation Index) and AI based STI (Speech Transmission Index) fail to assess speech intelligibility in modern telecommunication networks that use several non-linear processing for enhancing speech. Moreover, these techniques do not allow prediction of single individual CVC (Consonant Vowel Consonant) word intelligibility scores. READ MORE

  5. 4. Sound Quality Analysis System

    University essay from Lunds universitet/Högskoleingenjörsutbildning i datateknik

    Author : Hani Fakhouri; Elvis Barudzija; [2011]
    Keywords : pesq test-rig android polqa semc otu mos audio auio-quality mobile conversation; Technology and Engineering;

    Abstract : Sound quality is an essential factor in communication. At Sony Ericsson Mobile Communications(SEMC) it is very important to deliver the best quality. To do that is vital for the company reputation and therefore a test tool is needed to ease this accomplishment. READ MORE