Essays about: "Audio Codecs"

Showing result 1 - 5 of 13 essays containing the words Audio Codecs.

  1. 1. Bluetooth audio codecs in a real-time interactive context

    University essay from Högskolan i Skövde/Institutionen för informationsteknologi

    Author : Gustav Johansson; Mattias Adevåg; Jacob Milton; [2023]
    Keywords : Bluetooth Low Energy; BLE; audio codec; LC3; aptX; real-time; interactive context; latency; perceived audio quality;

    Abstract : The emergence of Bluetooth Low Energy in combination with optimized coders has made it possible to transfer digital audio at very low bitrates, paving the way for small devices with longlasting batteries. The aim of this study is to compare the audio codecs LC3 and aptX, as well as peoples’ attitude towards audio quality in different contexts. READ MORE

  3. 2. 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

  4. 3. Speech Intelligibility in Radio Broadcasts : A Case Study Using Dynamic Range Control and Blind Source Separation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Martin Linder Nilsson; [2022]
    Keywords : Speech enhancement; speech intelligibility; audibility; dynamic range control; blind source separation; object-based audio; public service.;

    Abstract : Creating the optimal balance between dialogue level and ambient sound is extremely important in media productions. This process is however inherently difficult due to that people’s requirements and preferences are not uniform. READ MORE

  5. 4. The perceptual impact of different quantization schemes in G.719

    University essay from KTH/Kommunikationsteori

    Author : Bote Liu; [2013]
    Keywords : ;

    Abstract : In this thesis, three kinds of quantization schemes, Fast Lattice Vector Quantization (FLVQ), Pyramidal Vector Quantization (PVQ) and Scalar Quantization (SQ) are studied in the framework of audio codec G.719. FLVQ is composed of an RE8 -based low-rate lattice vector quantizer and a D8 -based high-rate lattice vector quantizer. READ MORE

  6. 5. Flexible Audio Coder

    University essay from KTH/Ljud- och bildbehandling

    Author : Marcus Asteborg; [2011]
    Keywords : ;

    Abstract : As modern communications networks are heterogeneous and, therefore, highly variable, the design of source coders should reflect this network variability. It is desired that source coders are able to adapt instantly to any bit-rate constraint. READ MORE