Essays about: "Audio codec"

Showing result 1 - 5 of 19 essays containing the words Audio codec.

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. Implementation and Evaluation of Encoder Tools for Multi-Channel Audio

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Tomas Malmelöv; [2019]
   Keywords : Scene based audio; 3D audio; Spatial audio; Ambisonics; HOA; Multi-channel audio; Audio compression; MPEG-H;

   Abstract : The increasing interest for immersive experiences in areas such as augmented and virtual reality makes high quality 3D sound more important than ever before. A technique for capturing and rendering 3D audio which has received more attention during the last twenty years are Higher Order Ambisonics (HOA). READ MORE

5. 4. Parametric Coding for Spatial Audio

   University essay from KTH/MWL Marcus Wallenberg Laboratoriet

   Author : Bertrand Fatus; [2016]
   Keywords : ;

   Abstract : This thesis presents a stereo coding technique used as an extension for the Enhanced Voice Services (EVS) codec [10] [8]. EVS is an audio codec recently standardized by the 3rd Generation Partnership Project (3GPP) for compressing mono signals at chosen rates from 7.2 to 128 kbit/s (for xed bit rate) and around 5.9 kbit/s (for variable bit rate). READ MORE

6. 5. Influence of audio on perception and comprehension of video sequences : A SUBJECTIVE TEST OF PERCEPTION OF AUDIOVISUAL CONTENT WHERE AUDIO QUALITY WAS CHANGED

   University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

   Author : Sara Långvik; [2015]
   Keywords : ;

   Abstract : The importance of the role audio plays in multimodal information media is often underestimated or even overlooked. This applies to a wide range of media in everyday use- from videoconferencing systems to multi modal human-computer interfaces and to some extent even computer games. READ MORE