Results 1 to 10 of about 215 (163)
Some of the next articles are maybe not open access.
Spherical harmonic rake receivers for dereverberation
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC), 2016This paper presents the use of acoustic rake receivers for speech dereverberation applications. Formulated in the spherical harmonic domain, the proposed spatial filter designs exploit the multipath propagation of sound in an enclosure, by individually capturing early reflections and combining them with the direct path.
Hamza A. Javed +2 more
openaire +1 more source
Frame-Online DNN-WPE Dereverberation
2018 16th International Workshop on Acoustic Signal Enhancement (IWAENC), 2018Signal dereverberation using the weighted prediction error (WPE) method has been proven to be an effective means to raise the accuracy of far-field speech recognition. But in its original formulation, WPE requires multiple iterations over a sufficiently long utterance, rendering it unsuitable for online low-latency applications.
Jahn Heymann +4 more
openaire +1 more source
Study on Speech Dereverberation with Autocorrelation Codebook
2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007This paper proposes a new speech dereverberation approach based on a statistical speech model. An autocorrelation codebook is introduced as a model that can represent time-varying short-time speech characteristics corresponding to the cepstrum and harmonics.
Tomohiro Nakatani +6 more
openaire +1 more source
Personalized Dereverberation of Speech
INTERSPEECH 2023, 2023Ruilin Xu 0001 +3 more
openaire +1 more source
A Novel Approach for Dereverberation of Speech Signals
2019 13th International Conference on Signal Processing and Communication Systems (ICSPCS), 2019In this paper, we propose a novel higher-order statistics based approach to estimate the room impulse response (RIR) of a reverberating auditorium. The RIR is then used to dereverberate the speech signal. It is assumed that the RIR does not change for a brief period of time called the coherence time.
Sauradeep Dey, Pradip Sircar
openaire +1 more source
Multichannel Dereverberation Theorems and Robustness Issues
IEEE Transactions on Audio, Speech, and Language Processing, 2012Multichannel dereverberation amounts to the inversion of a multiple-input/multiple-output linear time-invariant system. In this paper, necessary and sufficient conditions for perfect dereverberation using stable and finite impulse response (FIR) filters are established. It is then shown that the inverse system given by the pseudoinverse of the original
Hüseyin Hacihabiboglu, Zoran Cvetkovic
openaire +2 more sources
Speech dereverberation based on a recorded handclap
2011 17th International Conference on Digital Signal Processing (DSP), 2011A semi-blind framework for the suppression of late speech reverberation is presented. The method is based on spectral subtraction and utilizes a simple recorded handclap to estimate the Power Spectral Density (PSD) of late reverberation. A statistical analysis of measured Room Impulse Responses (RIRs) and recorded handclaps demonstrates the sufficiency
Alexandros Tsilfidis +3 more
openaire +1 more source
A dereverberation formulation employing phase information
2016 24th Signal Processing and Communication Application Conference (SIU), 2016The dereverberation problem can be solved by attacking magnitudes of time-frequency transformation coefficients. In a spectrum frequency band, in harmonics, coefficients have a predictable pattern in phase. In this paper we propose a formulation for dereverberation problem which employs phase information in addition to magnitude information.
Aziz Kocanaogullari, Ilker Bayram
openaire +1 more source