Abstract
This paper introduces a concept of an active microphone that achieves a good combination of active-operation and signal processing, where a new sound-source-direction estimation method using only a single microphone with a parabolic reflection board is proposed. In our previous work [1], we proposed GMM (Gaussian Mixture Model) separation for estimation of the sound source direction, where the observed (reverberant) speech is separated into the acoustic transfer function and the clean speech GMM. However, the previous method required the measurement of speech for each room environment in advance. The new proposed method using parabolic reflection is able to estimate the sound source direction without any prior measurements. Its effectiveness is confirmed by sound-source-direction estimation experiments on white noise in a room environment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
