Techniques for improving the performance of CELP type speech coders

Gerson, Ira A.; Jasiuk, Mark A.

doi:10.1109/icassp.1991.150313

Search citation statements

Order By: Relevance

Paper Sections

Select...

Perceptual Weighting Filter and Postfilter1

Voicing-driven Packet Loss Recovery Algorithm1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1994

2007

Publication Types

Select...

Article5

Other1

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 17 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4, are used in both the conventional method and the proposed method. In addition, the perceptual weighting filter is constructed by quantized coefficients and the harmonic weighting filter [29] is used together with the perceptual weighting filter.…”

Section: Perceptual Weighting Filter and Postfiltermentioning

confidence: 99%

CELP speech coding based on mel-generalized cepstral analyses

Tokuda

Kobayashi

Imai

2000

Electron. Comm. Jpn. Pt. III

View full text Add to dashboard Cite

Section: Perceptual Weighting Filter and Postfiltermentioning

confidence: 99%

CELP speech coding based on mel-generalized cepstral analyses

Tokuda

Kobayashi

Imai

2000

Electron. Comm. Jpn. Pt. III

View full text Add to dashboard Cite

“…2, the voicing decision unit, pulse tracking procedure, multiresolution excitation generation, and random noise generation are the four main functions in the proposed excitation recovery method. Once the packet loss is detected, we first use the previous frame excitation to analyze it as unvoiced, partial voiced, or voiced by the voicing decision unit [13]. It should be noticed that only the nearest half previous frame rather than the whole previous frame is considered in the voicing decision.…”

Section: Voicing-driven Packet Loss Recovery Algorithmmentioning

confidence: 99%

A voicing-driven packet loss recovery algorithm for analysis-by-synthesis predictive speech coders over Internet

Wang

Yang

et al. 2001

IEEE Trans. Multimedia

View full text Add to dashboard Cite

In this paper, a novel voicing-driven adaptive packet loss recovery algorithm is proposed to lessen the possible voice degradation and error propagation for analysis-by-synthesis speech coders in Internet applications. After voicing classification, we adaptively adopt random noise generation, multiresolution excitation generation, or pulse tracking procedure to recover the lost packets. By applying the algorithm to the G.723.1 coder, simulation results show that the proposed algorithm is superior to the recovery algorithm embedded in the G.723.1 standard through the subjective evaluation.

show abstract