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ICASSP
2011
IEEE
14 years 3 months ago
Can one hear the shape of a room: The 2-D polygonal case
We consider the problem of estimating room geometry from the acoustic room impulse response (RIR). Existing approaches addressing this problem exploit the knowledge of multiple RI...
Ivan Dokmanic, Yue M. Lu, Martin Vetterli
ICASSP
2011
IEEE
14 years 3 months ago
Gain and phase autocalibration for uniform rectangular arrays
—To maintain the performance of direction-of-arrival (DOA) estimation, an accurate model of the array response is required. In a time-varying sensor environment, this is only pos...
Philipp Heidenreich, Abdelhak M. Zoubir
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ICASSP
2011
IEEE
14 years 3 months ago
Allophonic variations in visual speech synthesis for corrective feedback in CAPT
—This paper presents a visual speech synthesizer providing midsagittal and front views of the vocal tract to help language learners to correct their mispronunciations. We adopt ...
Ka-Ho Wong, Wai-Kit Lo, Helen Meng
ICASSP
2011
IEEE
14 years 3 months ago
Promoting convergence in multi-channel blind signal separation using PNLMS
The proportionate normalized least-mean squares (PNLMS) adaptation algorithm exploits the sparse nature of acoustic impulse responses and assigns adaptation gain proportional to t...
Muhammad Z. Ikram
ICASSP
2011
IEEE
14 years 3 months ago
How many known symbols are required for linear channel estimation in OFDM?
Training sequences for estimation of channel parameters have been well designed under the condition that the number of the unknown channel parameters is not greater than the numbe...
Shuichi Ohno, Emmanuel Manasseh, Masayoshi Nakamot...