Abstract:
"This study proposes a suitable model for packet
loss concealment (PLC) by estimating the residual error of the
linear prediction (LP) method for bone-conducted (BC) speech.
Instead of conventional LP-based PLC techniques where the
residual error is ignored, we employ forward-backward linear
prediction (FBLP), known as the modified covariance (MC)
method, by incorporating the residual error estimates. The MC
method provides precise LP estimation for a short data length,
reduces the numerical difficulties, and produces a stable model,
whereas the conventional autocorrelation (ACR) method of LP
suffers from numerical problems. The MC method has the effect
of compressing the spectral dynamic range of the BC speech,
which improves the numerical difficulties. Simulation results
reveal that the proposed method provides excellent outcomes from
some objectiv"
