Roar Hagen

Publication Activity (10 Years)

Years Active: 1990-2004
Publications (10 Years): 0

Chalmers University of Technology, Gothenburg, Sweden (PHD)

Education History

Chalmers University of Technology, Gothenburg, Sweden

PHD

Publications

Søren Vang Andersen, Alan Duric, Henrik Astrom, Roar Hagen, W. Bastiaan Kleijn, Jan Linden
Internet Low Bit Rate Codec (iLBC). RFC 3951 (2004)
Roar Hagen, Erik Ekudden
An 8 kbit/s ACELP coder with improved background noise performance. ICASSP (1999)
Roar Hagen, Erdal Paksoy, Allen Gersho
Voicing-specific LPC quantization for variable-rate speech coding. IEEE Trans. Speech Audio Process. 7 (5) (1999)
Roar Hagen, Per Hedelin
Robust Vector Quantization by a Linear Mapping of a Block Code. IEEE Trans. Inf. Theory 45 (1) (1999)
Roar Hagen, Erik Ekudden, Björn Johansson, W. Bastiaan Kleijn
Removal of sparse-excitation artifacts in CELP. ICASSP (1998)
Erik Ekudden, Roar Hagen, Björn Johansson, Shinji Hayashi, Akitoshi Kataoka, Sachiko Kurihara
ITU-t g.729 extension at 6.4 kbps. ICSLP (1998)
Jes Thyssen, W. Bastiaan Kleijn, Roar Hagen
Using a perception-based frequency scale in waveform interpolation. ICASSP (1997)
Roar Hagen
Robust LPC spectrum quantization-vector quantization by a linear mapping of a block code. IEEE Trans. Speech Audio Process. 4 (4) (1996)
W. Bastiaan Kleijn, Yair Shoham, Deep Sen, Roar Hagen
A low-complexity waveform interpolation coder. ICASSP (1996)
W. Bastiaan Kleijn, Roar Hagen
On memoryless quantization in speech coding. IEEE Signal Process. Lett. 3 (8) (1996)
Roar Hagen, Erdal Paksoy, Allen Gersho
Variable rate spectral quantization for phonetically classified CELP coding. ICASSP (1995)
Roar Hagen
Spectral quantization of cepstral coefficients. ICASSP (1) (1994)
Roar Hagen, Per Hedelin
Robust vector quantization in spectral coding. ICASSP (2) (1993)
Roar Hagen, Per Hedelin
Low bit-rate spectral coding in CELP, a new LSP-method. ICASSP (1990)

Roar Hagen.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Roar Hagen