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 [BibTeX] [Marc21]
Wide-Band Audio Coding based on Frequency Domain Linear Prediction
Type of publication: Journal paper
Citation: Motlicek_EURASIP-2_2009
Journal: EURASIP Journal on Audio Speech and Music Processing
Volume: 2010
Number: 856280
Year: 2010
Month: 2
Note: Special Issue: Scalable Audio-Content Analysis
Crossref: Motlicek_Idiap-RR-32-2009:
URL: http://www.hindawi.com/journal...
DOI: 10.1155/2010/856280
Abstract: We revisit an original concept of speech coding in which the signal is separated into the carrier modulated by the signal envelope. A recently developed technique, called frequency-domain linear prediction (FDLP,',','), is applied for the efficient estimation of the envelope. The processing in the temporal domain allows for a straightforward emulation of the forward temporal masking. This, combined with an efficient nonuniform sub-band decomposition and application of noise shaping in spectral domain instead of temporal domain (a technique to suppress artifacts in tonal audio signals,',','), yields a codec that does not rely on the linear speech production model but rather uses well-accepted concept of frequency-selective auditory perception. As such, the codec is not only specific for coding speech but also well suited for coding other important acoustic signals such as music and mixed content. The quality of the proposed codec at 66 kbps is evaluated using objective and subjective quality assessments. The evaluation indicates competitive performance with the MPEG codecs operating at similar bit rates.
Keywords: Audio Coding, speech coding, speech quality evaluations
Projects Idiap
Authors Motlicek, Petr
Ganapathy, Sriram
Hermansky, Hynek
Garudadri, Harinath
Editors Raj, Bhiksha
Added by: [UNK]
Total mark: 0
  • Motlicek_EURASIP-2_2009.pdf