Roar Hagen

15 papers Misc 6Journal 5Unranked 3
YearRankTypeTitle / Venue / Authors
2004 J jnl
Internet Low Bit Rate Codec (iLBC).
RFC
Søren Vang Andersen, Alan Duric, Henrik Astrom, Roar Hagen, W. Bastiaan Kleijn, Jan Linden
1999 Misc conf
An 8 kbit/s ACELP coder with improved background noise performance.
ICASSP
Roar Hagen, Erik Ekudden
1999 J jnl
Robust Vector Quantization by a Linear Mapping of a Block Code.
IEEE Trans. Inf. Theory
Roar Hagen, Per Hedelin
1999 J jnl
Voicing-specific LPC quantization for variable-rate speech coding.
IEEE Trans. Speech Audio Process.
Roar Hagen, Erdal Paksoy, Allen Gersho
1998 — conf
ITU-t g.729 extension at 6.4 kbps.
ICSLP
Erik Ekudden, Roar Hagen, Björn Johansson, Shinji Hayashi, Akitoshi Kataoka, Sachiko Kurihara
1998 Misc conf
Removal of sparse-excitation artifacts in CELP.
ICASSP
Roar Hagen, Erik Ekudden, Björn Johansson, W. Bastiaan Kleijn
1997 Misc conf
Using a perception-based frequency scale in waveform interpolation.
ICASSP
Jes Thyssen, W. Bastiaan Kleijn, Roar Hagen
1996 Misc conf
A low-complexity waveform interpolation coder.
ICASSP
W. Bastiaan Kleijn, Yair Shoham, Deep Sen, Roar Hagen
1996 J jnl
On memoryless quantization in speech coding.
IEEE Signal Process. Lett.
W. Bastiaan Kleijn, Roar Hagen
1996 J jnl
Robust LPC spectrum quantization-vector quantization by a linear mapping of a block code.
IEEE Trans. Speech Audio Process.
Roar Hagen
1995 — —
On Robust LPC-spectrum Coding and Vector Quantization.
Roar Hagen
1995 Misc conf
Variable rate spectral quantization for phonetically classified CELP coding.
ICASSP
Roar Hagen, Erdal Paksoy, Allen Gersho
1994 — conf
Spectral quantization of cepstral coefficients.
ICASSP (1)
Roar Hagen
1993 — conf
Robust vector quantization in spectral coding.
ICASSP (2)
Roar Hagen, Per Hedelin
1990 Misc conf
Low bit-rate spectral coding in CELP, a new LSP-method.
ICASSP
Roar Hagen, Per Hedelin