Reverberation Time Estimation for Speech Processing Applications
Löllmann H, Vary P (2009)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2009
Pages Range: 1655-1658
Event location: Rotterdam
ISBN: 978-3-98086-596-8
Abstract
The reverberation time (RT) is an important measure for the characterization of reverberant environments, which can be determined by different acoustical measurement methods. However, they use mostly a special measurement setup and dedicated excitation signals, which is inapplicable for most speech processing algorithms requiring knowledge about the RT. In this contribution, a new method is devised which allows to estimate the RT from noisy observations. It is based on a maximum likelihood (ML) estimation which is derived from a statistical model of the sound decay in reverberant and noisy enclosures. This allows to determine the RT from a measured sound decay (or room impulse response) despite the presence of noise. It is also shown, how the ML estimator can be used to determine the RT blindly from a noisy and reverberant speech signal. This blind RT estimation can be employed for the enhancement of noisy and reverberant speech signals.
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How to cite
APA:
Löllmann, H., & Vary, P. (2009). Reverberation Time Estimation for Speech Processing Applications. In Proceedings of the International Conference on Acoustics, including the 35th German Annual Conference on Acoustics (DAGA) (pp. 1655-1658). Rotterdam, NL.
MLA:
Löllmann, Heinrich, and Peter Vary. "Reverberation Time Estimation for Speech Processing Applications." Proceedings of the International Conference on Acoustics, including the 35th German Annual Conference on Acoustics (DAGA), Rotterdam 2009. 1655-1658.
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