Soft Reconstruction of Speech in the Presence of Noise and Packet Loss

Exploiting the residual redundancy in a source coder output stream during the decoding process has been proven to be a bandwidth efficient way to combat the noisy channel degradations. In this paper, we consider soft reconstruction of speech spectrum, in GSM adaptive multirate and IS-641 vocoders, t...

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Veröffentlicht in:	IEEE transactions on audio, speech, and language processing speech, and language processing, 2007-01, Vol.15 (1), p.44-56
Hauptverfasser:	Lahouti, F., Khandani, A.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Bit rate Channel coding Channels Coders Coding, codes Decoding Degradation Erasure channel Errors Exact sciences and technology forward-backward recursion global system for mobile communications-adaptive multirate (GSM-AMR) Information, signal and communications theory IS-641 joint source channel coding (JSC) line spectral frequency (LSF) linear predictive coding (LPC) Markov models minimum mean squared error (MMSE) estimation Mobile communication multiple description coding (MDS) Noise packet loss concealment (PLC) Propagation losses Reconstruction Redundancy residual redundancies Signal and communications theory Signal processing Signal representation. Spectral analysis Signal, noise source decoding Speech speech coding Speech enhancement speech error concealment Speech processing Telecommunications and information theory
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