%Aigaion2 BibTeX export from Idiap Publications %Thursday 21 November 2024 04:56:23 PM @TECHREPORT{motlicek:rr06-05, author = {Motlicek, Petr and Hermansky, Hynek and Garudadri, Harinath and Srinivasamurthy, Naveen}, projects = {Idiap}, title = {Speech Coding based on Spectral Dynamics}, type = {Idiap-RR}, number = {Idiap-RR-05-2006}, year = {2006}, institution = {IDIAP}, note = {Submitted for publication}, abstract = {In this paper we present first experimental results with a novel audio coding technique based on approximating Hilbert envelopes of relatively long segments of audio signal in critical-band-sized sub-bands by autoregressive model. We exploit the generalized autocorrelation linear predictive technique that allows for a better control of fitting the peaks and troughs of the envelope in the sub-band. Despite introducing longer algorithmic delay, improved coding efficiency is achieved. Since the described technique does not directly model short-term spectral envelopes of the signal, it is suitable not only for coding speech but also for coding of other audio signals.}, pdf = {https://publications.idiap.ch/attachments/reports/2006/motlicek-idiap-rr-06-05.pdf}, postscript = {ftp://ftp.idiap.ch/pub/reports/2006/motlicek-idiap-rr-06-05.ps.gz}, ipdmembership={speech}, }