Nothing Special   »   [go: up one dir, main page]

Saric et al., 2011 - Google Patents

A new post-filter algorithm combined with two-step adaptive beamformer

Saric et al., 2011

View PDF
Document ID
11484870705884261027
Author
Saric Z
Simic D
Jovicic S
Publication year
Publication venue
Circuits, Systems, and Signal Processing

External Links

Snippet

The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets providing an auditory perception; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Interconnection arrangements not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for suppressing echoes or otherwise conditioning for one or other direction of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for suppressing echoes or otherwise conditioning for one or other direction of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups

Similar Documents

Publication Publication Date Title
Kjems et al. Maximum likelihood based noise covariance matrix estimation for multi-microphone speech enhancement
Thiergart et al. An informed parametric spatial filter based on instantaneous direction-of-arrival estimates
Schwarz et al. Coherent-to-diffuse power ratio estimation for dereverberation
Krueger et al. Speech enhancement with a GSC-like structure employing eigenvector-based transfer function ratios estimation
US10331396B2 (en) Filter and method for informed spatial filtering using multiple instantaneous direction-of-arrival estimates
US7366662B2 (en) Separation of target acoustic signals in a multi-transducer arrangement
Kodrasi et al. Joint dereverberation and noise reduction based on acoustic multi-channel equalization
Taseska et al. Informed spatial filtering for sound extraction using distributed microphone arrays
Braun et al. Dereverberation in noisy environments using reference signals and a maximum likelihood estimator
Dietzen et al. Integrated sidelobe cancellation and linear prediction Kalman filter for joint multi-microphone speech dereverberation, interfering speech cancellation, and noise reduction
Schwartz et al. An expectation-maximization algorithm for multimicrophone speech dereverberation and noise reduction with coherence matrix estimation
US10283139B2 (en) Reverberation suppression using multiple beamformers
Braun et al. A multichannel diffuse power estimator for dereverberation in the presence of multiple sources
Schwartz et al. Joint estimation of late reverberant and speech power spectral densities in noisy environments using Frobenius norm
Fahim et al. PSD estimation and source separation in a noisy reverberant environment using a spherical microphone array
Schwartz et al. Joint maximum likelihood estimation of late reverberant and speech power spectral density in noisy environments
Kodrasi et al. Joint late reverberation and noise power spectral density estimation in a spatially homogeneous noise field
Taseska et al. Spotforming using distributed microphone arrays
Priyanka A review on adaptive beamforming techniques for speech enhancement
Thiergart et al. Power-based signal-to-diffuse ratio estimation using noisy directional microphones
Mirabilii et al. Multi-channel wind noise reduction using the Corcos model
Thiergart et al. An informed MMSE filter based on multiple instantaneous direction-of-arrival estimates
Warsitz et al. Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller
Spriet et al. Stochastic gradient-based implementation of spatially preprocessed speech distortion weighted multichannel Wiener filtering for noise reduction in hearing aids
Mirabilii et al. Spatial coherence-aware multi-channel wind noise reduction