Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter - Publication - Bridge of Knowledge

Search

Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter

Abstract

In this paper a sample rate conversion algorithm which allows for continuously changing resampling ratio has been presented. The proposed implementation is based on a variable fractional delay filter which is implemented by means of a Farrow structure. Coefficients of this structure are computed on the basis of fractional delay filters which are designed using the offset window method. The proposed approach allows us to freely change the instantaneous resampling ratio during processing. Using such an algorithm we can simulate recording of audio on magnetic tape with nonuniform velocity as well as remove such distortions. We have demonstrated capabilities of the proposed approach based on the example of speech signal processing with a resampling ratio which was computed on the basis of estimated fundamental frequency of voiced speech segments.

Citations

  • 2

    CrossRef

  • 2

    Web of Science

  • 2

    Scopus

Cite as

Full text

download paper
downloaded 3 times
Publication version
Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.2478/aoa-2014-0027
License
Creative Commons: CC-BY-SA open in new tab

Keywords

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
Archives of Acoustics no. 39, pages 231 - 242,
ISSN: 0137-5075
Language:
English
Publication year:
2014
Bibliographic description:
Blok M., Drózda P.: Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter// Archives of Acoustics. -Vol. 39, iss. 2 (2014), s.231-242
DOI:
Digital Object Identifier (open in new tab) 10.2478/aoa-2014-0027
Verified by:
Gdańsk University of Technology

seen 30 times

Recommended for you

Meta Tags