Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry
Abstract This paper proposes a novel approach for improving the speech of a single speaker in noisy reverberant environments. The proposed approach is based on using a beamformer with a large number of virtual microphones with the suggested arrangement on an open sphere. Our method takes into accoun...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13634-022-00951-7 |
| _version_ | 1811196629350350848 |
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| author | Mohammad Ebrahim Sadeghi Hamid Sheikhzadeh Mohammad Javad Emadi |
| author_facet | Mohammad Ebrahim Sadeghi Hamid Sheikhzadeh Mohammad Javad Emadi |
| author_sort | Mohammad Ebrahim Sadeghi |
| collection | DOAJ |
| description | Abstract This paper proposes a novel approach for improving the speech of a single speaker in noisy reverberant environments. The proposed approach is based on using a beamformer with a large number of virtual microphones with the suggested arrangement on an open sphere. Our method takes into account virtual microphone signal synthesizing using the non-parametric sound field reproduction in the spherical harmonics domain and the popular weighted prediction error method. We obtain entirely accurate beam steering towards a known source location with more directivity. The suggested approach is proven to perform effectively not just in boosting the directivity factor but also in terms of improving speech quality as measured by subjective metrics like the PESQ. In comparison to current research in the area of speech enhancement by beamformer, our experiments reveal more noise and reverberation suppression as well as improved quality in the enhanced speech samples due to the usage of virtual beam rotation in the fixed beamformer. Text for this section. |
| first_indexed | 2024-04-12T01:02:05Z |
| format | Article |
| id | doaj.art-4c45880c09ac4660ab55e75cea8565fe |
| institution | Directory Open Access Journal |
| issn | 1687-6180 |
| language | English |
| last_indexed | 2024-04-12T01:02:05Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-4c45880c09ac4660ab55e75cea8565fe2022-12-22T03:54:25ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61802022-12-012022112010.1186/s13634-022-00951-7Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometryMohammad Ebrahim Sadeghi0Hamid Sheikhzadeh1Mohammad Javad Emadi2Department of Electrical Engineering, Amirkabir University of TechnologyDepartment of Electrical Engineering, Amirkabir University of TechnologyDepartment of Electrical Engineering, Amirkabir University of TechnologyAbstract This paper proposes a novel approach for improving the speech of a single speaker in noisy reverberant environments. The proposed approach is based on using a beamformer with a large number of virtual microphones with the suggested arrangement on an open sphere. Our method takes into account virtual microphone signal synthesizing using the non-parametric sound field reproduction in the spherical harmonics domain and the popular weighted prediction error method. We obtain entirely accurate beam steering towards a known source location with more directivity. The suggested approach is proven to perform effectively not just in boosting the directivity factor but also in terms of improving speech quality as measured by subjective metrics like the PESQ. In comparison to current research in the area of speech enhancement by beamformer, our experiments reveal more noise and reverberation suppression as well as improved quality in the enhanced speech samples due to the usage of virtual beam rotation in the fixed beamformer. Text for this section.https://doi.org/10.1186/s13634-022-00951-7Speech improvementBeamformerVirtual microphoneSpherical harmonics domain |
| spellingShingle | Mohammad Ebrahim Sadeghi Hamid Sheikhzadeh Mohammad Javad Emadi Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry EURASIP Journal on Advances in Signal Processing Speech improvement Beamformer Virtual microphone Spherical harmonics domain |
| title | Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| title_full | Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| title_fullStr | Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| title_full_unstemmed | Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| title_short | Speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| title_sort | speech improvement in noisy reverberant environments using virtual microphones along with proposed array geometry |
| topic | Speech improvement Beamformer Virtual microphone Spherical harmonics domain |
| url | https://doi.org/10.1186/s13634-022-00951-7 |
| work_keys_str_mv | AT mohammadebrahimsadeghi speechimprovementinnoisyreverberantenvironmentsusingvirtualmicrophonesalongwithproposedarraygeometry AT hamidsheikhzadeh speechimprovementinnoisyreverberantenvironmentsusingvirtualmicrophonesalongwithproposedarraygeometry AT mohammadjavademadi speechimprovementinnoisyreverberantenvironmentsusingvirtualmicrophonesalongwithproposedarraygeometry |