Search Results - "Rodbro, C.A."
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Hidden Markov model-based packet loss concealment for voice over IP
Published in IEEE transactions on audio, speech, and language processing (01-09-2006)“…As voice over IP proliferates, packet loss concealment (PLC) at the receiver has emerged as an important factor in determining voice quality of service…”
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Journal Article -
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Rate-distortion optimal time-segmentation and redundancy selection for VoIP
Published in IEEE transactions on audio, speech, and language processing (01-05-2006)“…In this paper, novel techniques for packet loss robust speech coding are proposed. By exploiting knowledge of the receiving end packet loss concealment…”
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Journal Article -
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Packet Loss Concealment with Natural Variations using HMM
Published in 2006 IEEE International Conference on Acoustics Speech and Signal Processing Proceedings (2006)“…Packet loss concealment (PLC) at a receiver has a substantial effect on the speech quality in voice over IP. Most conventional PLC systems have largely relied…”
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Conference Proceeding
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Compressed domain packet loss concealment of sinusoidally coded speech
Published in 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03) (2003)“…We consider the problem of packet loss concealment for voice over IP (VoIP). The speech signal is compressed at the transmitter using a sinusoidal coding…”
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Conference Proceeding -
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Adaptive time-segmentation for speech coding with limited delay
Published in 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing (2004)“…We investigate the trade-off between delay and signal quality in adaptive time-segmentation for speech coding. A variable rate sinusoidal coder with adaptive…”
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Conference Proceeding -
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Low complexity rate-distortion optimized time-segmentation for audio coding
Published in IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2005 (2005)“…In this paper, we investigate a reduced complexity approach to rate-distortion optimized time-segmentation in audio coding. Instead of the conventional…”
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Conference Proceeding -
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Recursively updated eigenfilterbank for speech enhancement
Published in 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221) (2001)“…A novel signal subspace method for speech enhancement is proposed. The algorithm is derived from the filterbank interpretation of the truncated (quotient)…”
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Conference Proceeding -
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Time-scaling of sinusoids for intelligent jitter buffer in packet based telephony
Published in Speech Coding, 2002, IEEE Workshop Proceedings (2002)“…Two packet loss combating schemes for voice over packet switched networks are studied. The methods are based on time-scaling performed directly on the…”
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Conference Proceeding -
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Subspace-based speech enhancement with rank-deficient prewhitening
Published in Speech Coding, 2002, IEEE Workshop Proceedings (2002)“…We study a new subspace-based noise reduction technique that can handle the case of narrowband noise, i.e. the case where the noise covariance matrix is…”
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Conference Proceeding