Sökning: "Echo Cancellation"

Visar resultat 6 - 10 av 23 uppsatser innehållade orden Echo Cancellation.

  1. 6. Automatic Performance Certification Tool for Digital Multiroom Sound Systems

    Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Niklas Bäckström; [2015]
    Nyckelord :;

    Sammanfattning : The company Spotify enables hardware companies to produce sound systems that are capable of playing music via Spotify’s music service. The sound systems are then sold to consumers. In order to guarantee a certain level of quality, the products need to be certified, mainly in regards to performance. LÄS MER

  3. 7. Subband Adaptive Filtering Technique employing APA For Stereo Echo Cancellation over Audio Signals

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :BHANUDURGA SRI SATYA SIMHA EDAMAKANTI; VISHNU CHAITANYA GUNDU; [2014]
    Nyckelord :Stereo Echo Cancellation; NLMS; RLS; MCHA; APA; Subband Adaptive Modeling.; Master of Science Programme in Electrical Engineering with emphasis on Signal Processing Masterprogram i Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : The world today is relying on hands free devices and teleconferencing equipments but the major problem with the use of these systems is creation of acoustic echo at the time of conversation. The quality of information to be transmitted and received is degraded due to the echo. LÄS MER

  4. 8. Echo Cancellation using PMSAF and Compare the performance with NLMS and improved PNLMS under different Impulse responses

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Mohsin Ali; Muhammad Jamal Nasir; [2013]
    Nyckelord :Echo cancellation; IPNLMS; MSAF; NLMS; PNLMS; SAF;

    Sammanfattning : In the field of signal processing adaptive filtering is a major subject which has vast applications in speech processing e.g. speech coding, speech enhancement, echo cancellation and interference. Echo is the major problem in the communication systems. LÄS MER

  5. 9. Stereo Echo Cancellation(SEC) employing Signal Decorrelation with emphasis on Affine Projection Algorithm(APA)

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Santosh Ande; [2013]
    Nyckelord :Affine Projection Algorithm APA ; Stereo Echo Cancellation SEC ; De-correlation; Non-linear Processing NLP ; Time Varying All-Pass Filter TV-APF ; ERLE; MIS.;

    Sammanfattning : Monophonic tele-conferencing systems employ acoustic echo cancellation (AEC) to reduce echoes that result from coupling between loudspeaker and microphone. Acoustic echo cancellation is simple to develope as there is a single channel. LÄS MER

  7. 10. MATLAB SIMULATOR FOR ADAPTIVE FILTERS

    Kandidat-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Abu Zar; Raja Abid Asghar; [2013]
    Nyckelord :Adaptive Filters; LMS; NLMS; Noise Cancellation; Stationary Signals; Non-Stationary Signals;

    Sammanfattning : Adaptive filters play an important role in modern day signal processing with applications such as noise cancellation, signal prediction, adaptive feedback cancellation and echo cancellation. The adaptive filters used in our thesis, LMS (Least Mean Square) filter and NLMS (Normalized Least Mean Square) filter, are the most widely used and simplest to implement. LÄS MER