Frequency shifting approach towards textual transcription of heartbeat sounds

Arvin, Farshad and Doraisamy, Shyamala and Safar Khorasani, Ehsan (2011) Frequency shifting approach towards textual transcription of heartbeat sounds. Biological Procedures Online, 13 (7). pp. 1-7. ISSN 1480-9222

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Transcription of heartbeat sounds
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Abstract

Auscultation is an approach for diagnosing many cardiovascular problems. Automatic analysis of heartbeat sounds and extraction of its audio features can assist physicians towards diagnosing diseases. Textual transcription allows recording a continuous heart sound stream using a text format which can be stored in very small memory in comparison with other audio formats. In addition, a text-based data allows applying indexing and searching techniques to access to the critical events. Hence, the transcribed heartbeat sounds provides useful information to monitor the behavior of a patient for the long duration of time. This paper proposes a frequency shifting method in order to improve the performance of the transcription. The main objective of this study is to transfer the heartbeat sounds to the music domain. The proposed technique is tested with 100 samples which were recorded from different heart diseases categories. The observed results show that, the proposed shifting method significantly improves the performance of the transcription.

Item Type:Article
Keywords:Digital signal processing, Biomedical engineering
Subjects:G Mathematical and Computer Sciences > G450 Multi-media Computing Science
Divisions:College of Science > School of Computer Science
ID Code:5794
Deposited By: Farshad Arvin
Deposited On:07 Jun 2012 10:46
Last Modified:02 Aug 2013 13:37

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