NDLI: Bandwidth extension of narrowband speech for low bit-rate wideband coding

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Speech Coding, 2002, IEEE Workshop Proceedings.

2000 IEEE Workshop on Speech Coding. Proceedings. Meeting the Challenges of the New Millennium (Cat. No.00EX421)

2000 IEEE Workshop on Speech Coding. Proceedings. Meeting the Challenges of the New Millennium (Cat. No.00EX421)

An overview of text-to-speech synthesis

A sinusoidal LPC vocoder

Coding of spectral magnitudes using optimized linear transformations

Design and performance of a 4.0 kbit/s speech coder based on frequency-domain interpolation

Exploiting simultaneously masked linear prediction in a WI speech coder

A novel approach to excitation coding in low-bit-rate high-quality CELP coders

4 kb/s improved multi-pulse based CELP speech coding with multiple location codebook and post-processing

Application of multidimensional scaling to subjective evaluation of coded speech

New objective measures for characterisation of noise suppression algorithms

Changes in voice quality judgments as a function of background noise level in the listening environment

Very low rate speech coding using temporal decomposition and waveform interpolation

Efficient parameter quantisation for 2.4/1.2 kb/s split-band LPC coding

Voicing detection in DAP-STC

Results on reverse water-filling, SNR, and log-spectral error in codebook-based coding

A novel algorithm for low bit rate speech compression using a hybrid LP-harmonics model

An efficient synthesis method for sinusoidal vocoders

Predictive quantization of spectral amplitudes for harmonic coders

Enhancing waveform interpolative coding with weighted REW parametric quantization

A preprocessing method for perfect reconstruction WI coding

Improved signal analysis and time-synchronous reconstruction in waveform interpolation coding

Exploring the characteristics of analytic decomposition of speech signals

On the perceptual weighting function for phase quantization of speech

Analysis-by-synthesis voicing cut-off determination in harmonic coding

Signal processing for cochlear implants and low-rate speech coding

Diversity control among multiple coders: a simple approach to multiple descriptions

Dichotic presentation of interleaving critical-band envelopes: an application to multi-descriptive coding

Markov chain prediction for missing speech frame compensation

Improving transcoding capability of speech coders in clean and frame erasured channel environments

On quantizer dimensions in joint speech/channel coding

Error concealment by near optimum MMSE-estimation of source codec parameters

PDF optimized parametric vector quantization of speech line spectral frequencies

Enhancing MPEG-4 CELP by jointly optimized inter/intra-frame LSP predictors

An information theoretic perspective on the speech spectrum process

Regularized linear prediction all-pole models

A pseudo-cepstrum based short-term postfilter

A post-processing technique to improve coding quality of CELP under background noise

Partial-energy weighted interpolation of linear prediction coefficients

Index assignment for predictive wideband LSF quantization

Low-rate quantization of spectral information in a 4 kb/s pitch-synchronous CELP coder

Subband synthesized LPC vector quantization (SBS-LPC-VQ)

Model based spectrum prediction

LSF split vector quantization for wideband codecs with narrowband tandemming

Normalization and polygon error detection for split VQ of line spectral frequencies

Performance comparison of intraframe and interframe LSF quantization in packet networks

Acoustic front-end processing for communication systems

Bandwidth extension of narrowband speech for low bit-rate wideband coding

Wideband extension of telephone speech using a hidden Markov model

Stereophonic CELP coding using cross channel prediction

Design of an MPEG-4 general audio coder for improving speech quality

Trellis-based optimization of MPEG-4 advanced audio coding

An adaptive multi rate wideband speech codec with adaptive gain re-quantization

Wideband coding of speech using a scalable pulse codebook

Robust signal/noise discrimination for wideband speech and audio coding

Combined speech and audio coding by discrimination

1999 IEEE Workshop on Speech Coding Proceedings. Model, Coders, and Error Criteria (Cat. No.99EX351)

Bandwidth extension of narrowband speech for low bit-rate wideband coding

Content Provider	IEEE Xplore Digital Library
Author	Valin, J.-M. Lefebvre, R.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. Eng., Sherbrooke Univ., Que., Canada (Valin, J.-M.)
Abstract	Wireless telephone speech is usually limited to the 300-3400 Hz band, which reduces its quality. There is thus a growing demand for wideband speech systems that transmit from 50 Hz to 8000 Hz. This paper presents an algorithm to generate wideband speech from narrowband speech using as low as 500 bit/s of side information. The 50-300 Hz band is predicted from the narrowband signal. A source-excitation model is used for the 3400-8000 Hz band, where the excitation is extrapolated at the receiver, and the spectral envelope is transmitted. Though some artifacts are present, the resulting wideband speech has enhanced quality compared to narrowband speech.
Starting Page	130
Ending Page	132
File Size	291905
Page Count	3
File Format	PDF
ISBN	0780364163
DOI	10.1109/SCFT.2000.878425
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Narrowband Speech coding Wideband Finite impulse response filter Power harmonic filters Frequency Telephony Speech enhancement Sampling methods
Content Type	Text
Resource Type	Article

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