http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Parallel and real-time implementation of an acoustic echo canceller using oversampled wavelet frame algorithms
"divide--conquer" approach to meet the stringent filter
acoustic echo cancellers. Besides improving convergence due
active system identification based on fast wavelet transform
and oversampled frames, the proposed architecture obviates
array based on detection of returned pilot signals, using
channel probing engine is used to reset the adaptive filter
consistently outperforms both the conventional fullband and
eliminates nonstationary echoes with long acoustic delays in
length requirement. To cope with time-varying echoes, a
oversampled frame decompositionThe proposed architecture is
real-time. By combining subband adaptive filtering and
Simulation results show that the hybrid architecture
subband filters, even when the pilot signals are heavily
the need for lengthy filters commonly found in conventional
then implemented on a parallel TMS32OC40 computer.
This thesis describes a novel echo cancellation system that
to subband decorrelation, wavelet decomposition offers a
"Major subject: Electrical Engineering".
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