Sökning: "CODEC"

Visar resultat 1 - 5 av 59 uppsatser innehållade ordet CODEC.

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

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för informationsteknologi

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

    Sammanfattning : 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. LÄS MER

  3. 2. SIGNALBEHANDLING MED AVANCERAD BLUETOOTH-TEKNIK OCH OPTIMERADE OPERATIVSYSTEM : Optimera audiosystemet i ett avancerat inbyggt system med en fler-trådad programvara och synkroniserings mekanism

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Omar Ibrahim; [2023]
    Nyckelord :BM83 bluetooth; audio subsystem; Inter-IC sound; Digital Signal Processor; Operative System; DSP platform tests.;

    Sammanfattning : This study is about replacing an old bluetooth module with a new variant, namely the BM83 which is an integrated circuit that contains an internal DSP circuit, profiles and important functions such as noise reduction, acoustic echo removal and EQ filtering. The purpose of this study is to replace the old module with the BM83, as well as explore the internal DSP circuit in the BM83. LÄS MER

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

    Master-uppsats, Linköpings universitet/Informationskodning

    Författare :Louise Almér; [2022]
    Nyckelord :Compression; Codec; audio; speech quality; quality of experience;

    Sammanfattning : 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. LÄS MER

  5. 4. Jämförelse av bluetooth codecs med fokus på batteriladdning, CPU användning och räckvidd

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för informationsteknologi

    Författare :Daniel Larsson; Kevin Ly Khuu; [2022]
    Nyckelord :Bluetooth codec; battery drainage; CPU usage; range; experiment; advanced audio coding; low-complexity subband codec;

    Sammanfattning : With the constant advances in technology, people are using more wireless products, such as earphones or speakers whereas many of them use Bluetooth. With the current advances in Bluetooth technology, consumers and manufacturers have a hard time keeping up with the pace. LÄS MER

  7. 5. Recording Rendering API Commands for Instant Replay : A Runtime Overhead Comparison to Real-Time Video Encoding

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :Marcus Holmberg; [2020]
    Nyckelord :Instant Replay; Command Recording; Real-time Rendering; Real-time Video Encoding; Återspelning; Kommandoinspelning; Realtidsrendering; Videokodning i Realtid;

    Sammanfattning : Background. Instant replay allows an application to highlight events without exporting a video of the whole session. Hardware-accelerated video encoding allows replay footage to be encoded in real-time with less to no impact on the runtime performance of the actual simulation in the application. LÄS MER