Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Atti, Venkatraman"'
Autor:
Atti, Venkatraman, Spanias, Andreas, Tsakalis, Kostas, Panayiotou, Constantinos, Iasemidis, Leon, Berisha, Visar
Publikováno v:
In Signal Processing 2008 88(2):236-246
Autor:
Atti Venkatraman S, A. Spanias
Publikováno v:
IEEE Signal Processing Letters. 16:695-698
A new speech analysis-synthesis approach that is based on a perceptually-motivated all-pole (PMAP) modeling is described. The main idea is to directly estimate the perceptually relevant pole locations using an auditory excitation pattern-matching met
Publikováno v:
IEEE Transactions on Education. 52:257-262
Distributed wireless sensor networks (WSNs) are being proposed for various applications including defense, security, and smart stages. The introduction of hardware wireless sensors in a signal processing education setting can serve as a paradigm for
Autor:
K. Tsakalis, Leon D. Iasemidis, Visar Berisha, Atti Venkatraman S, Constantinos Panayiotou, Andreas Spanias
Publikováno v:
Signal Processing. 88:236-246
Gradient-type adaptive channel equalizers can suffer from burst error problems under sustained fading and in the absence of sufficient excitation. To overcome this problem, we propose an algorithm called the gradient-with-projection-on-bounding-ellip
Autor:
Lasse Juhani Laaksonen, Zongxian Liu, Ki-hyun Choo, Zhou Xuan, Zexin Liu, Hiroyuki Ehara, Ho-Sang Sung, Srikanth Nagisetty, Venkatesh Krishnan, Vivek Rajendran, Jon Gibbs, Lei Miao, Takuya Kawashima, Wang Bin, Atti Venkatraman S
Publikováno v:
ICASSP
This paper presents a low bit-rate MDCT coder, which is adopted as a part of the recently standardized codec for Enhanced Voice Services. To maximize codec performance for NB to SWB input signals for low bit-rates (7.2 to 16.4 kbps), new adaptive bit
Publikováno v:
ICASSP
In most internationally recognized standardized multi-mode codecs, signal classification is performed in a single step by either linear discrimination or SNR-based metrics. The speech/music classifier of the EVS codec achieves greater discrimination
Autor:
Daniel J. Sinder, Jeremie Lecomte, Benjamin Schubert, Duminda A. Dewasurendra, Atti Venkatraman S, Venkata Subrahmanyam Chandra Sekhar Chebiyyam, Subasingha Shaminda Subasingha, Lei Miao, Vivek Rajendran, Imre Varga, Venkatesh Krishnan, Xingtao Zhang
Publikováno v:
ICASSP
A highly error resilient mode of the newly standardized 3GPP EVS speech codec is described. Compared to the AMR-WB codec and other conversational codecs, the EVS channel aware mode offers significantly improved error resilience in voice communication
Autor:
Duminda A. Dewasurendra, Daniel J. Sinder, Volodya Grancharov, Venkata Subrahmanyam Chandra Sekhar Chebiyyam, Subasingha Shaminda Subasingha, Harald Pobloth, Atti Venkatraman S, Jon Gibbs, Vivek Rajendran, Imre Varga, Lei Miao, Venkatesh Krishnan
Publikováno v:
ICASSP
This paper describes the time-domain bandwidth extension (TBE) framework employed to code wideband and super-wideband speech in the newly standardized 3GPP EVS codec. The TBE algorithm uses a nonlinear harmonic modeling technique that incorporates pr
Autor:
Erik Norvell, Vladimir Malenovsky, Hiroyuki Ehara, Adriana Vasilache, Ho-Sang Sung, Hao Yuan, Markus Multrus, Vivek Rajendran, Lei Miao, Zhe Wang, Yutaka Kamamoto, Lasse Juhani Laaksonen, Martin Dietz, Atti Venkatraman S, Vaclav Eksler, Eunmi Oh, Changbao Zhu, Kei Kikuiri, Julien Faure, Stéphane Ragot, Harald Pobloth
Publikováno v:
ICASSP
The recently standardized 3GPP codec for Enhanced Voice Services (EVS) offers new features and improvements for low-delay real-time communication systems. Based on a novel, switched low-delay speech/audio codec, the EVS codec contains various tools f