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MMSP
2008
IEEE
149views Multimedia» more  MMSP 2008»
14 years 5 months ago
Hybrid low bitrate audio coding using adaptive gain shape vector quantization
—Audio coding at low bitrates typically suffers from artifacts caused by bandwidth truncation. In this paper we present a novel scheme to code audio signals at low bitrates which...
Sanjeev Mehrotra, Wei-Ge Chen, Kazuhito Koishida, ...
ICASSP
2008
IEEE
14 years 5 months ago
Joint filterbank structures for integrating audio coding into hearing aid applications
To help develop ultra-low power wireless hearing aid products, we investigate the integration of subband audio coding with hearing aid applications. Both the audio coding and the ...
Rong Dong, David Hermann, Robert Brennan, Edward C...
ICASSP
2009
IEEE
14 years 5 months ago
A modified distortion metric for audio coding
Current audio coding standards employ the modified discrete cosine transform (MDCT) where overlapped frames of audio are windowed and transformed to the frequency domain. Encodin...
Vinay Melkote, Kenneth Rose
ICASSP
2011
IEEE
13 years 2 months ago
Coding of unquantized spectrum sub-bands in superwideband audio codecs
We present several new methods for coding of spectrum coefficients in embedded audio codecs. In audio codecs, the spectrum is often divided in sub-bands, and quantized using a vec...
Vaclav Eksler, Milan Jelinek
SPEECH
2011
13 years 5 months ago
Auditory-inspired sparse representation of audio signals
This article deals with the generation of auditory-inspired spectro-temporal features aimed at audio coding. To do so, we first generate sparse audio representations we call spik...
Ramin Pichevar, Hossein Najaf-Zadeh, Louis Thibaul...