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@TECHREPORT{Ganapathy_Idiap-RR-34-2009,
         author = {Ganapathy, Sriram and Motlicek, Petr and Hermansky, Hynek},
       projects = {Idiap},
          month = {12},
          title = {MDCT for Encoding Residual Signals in Frequency Domain Linear Prediction},
           type = {Idiap-RR},
         number = {Idiap-RR-34-2009},
           year = {2009},
    institution = {Idiap},
        address = {Rue Marconi 19. Martigny},
       abstract = {Frequency domain linear prediction (FDLP) uses autoregressive models to represent Hilbert envelopes of
relatively long segments of speech/audio signals. Although the basic FDLP audio codec achieves good quality
of the reconstructed signal at high bit-rates, there is a need for scaling to lower bit-rates without degrading
the reconstruction quality. Here, we present a method for improving the compression efficiency of the FDLP
codec by the application of the modified discrete cosine transform (MDCT) for encoding the FDLP residual
signals. In the subjective and objective quality evaluations, the proposed FDLP codec provides competent
quality of reconstructed signal compared to the state-of-the-art audio codecs for the 32 {\^{a}}ˆ’ 64 kbps range.},
            pdf = {https://publications.idiap.ch/attachments/reports/2009/Ganapathy_Idiap-RR-34-2009.pdf}
}