Real Time Suppression of Howling Noise in Public Address System. (2016)
- Record Type:
- Journal Article
- Title:
- Real Time Suppression of Howling Noise in Public Address System. (2016)
- Main Title:
- Real Time Suppression of Howling Noise in Public Address System
- Authors:
- Jithin, T.
Salih, K.K. Mohamed
Jayan, A.R. - Abstract:
- Abstract: Howling noise is a common phenomenon in a public address system. It is built up due to the acoustic coupling between the speaker system and the microphone when it creates a positive feedback. Real time implementation of howling noise detection and suppression was implemented using TMS320C6713 DSK starter kit. The whole implementation was done based on direct memory access (DMA) feature of the DSP processor. The method uses the properties of howling noise for efficient detection and has the advantage of suppressing the noise. Howling detection is performed based on spectral flatness measure (SFM) of each input speech frame. For frames without howling, the input is passed as such to the output. Howling suppression is performed by making output samples as zero if the presence of howling noise is detected.
- Is Part Of:
- Procedia technology. Volume 24(2016)
- Journal:
- Procedia technology
- Issue:
- Volume 24(2016)
- Issue Display:
- Volume 24, Issue 2016 (2016)
- Year:
- 2016
- Volume:
- 24
- Issue:
- 2016
- Issue Sort Value:
- 2016-0024-2016-0000
- Page Start:
- 933
- Page End:
- 940
- Publication Date:
- 2016
- Subjects:
- Howling noise -- Spectral Flatness Measure(SFM) -- Direct Memory Access(DMA)
Technology -- Congresses
Technology -- Periodicals
Engineering -- Congresses
Engineering -- Periodicals
Engineering
Technology
Conference proceedings
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605 - Journal URLs:
- http://www.sciencedirect.com/science/journal/22120173 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.protcy.2016.05.191 ↗
- Languages:
- English
- ISSNs:
- 2212-0173
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 2229.xml