Comparison and implementation of a 16-bit fixed-point audio resampler

Wen Jin, Michael S Scordilis, Alexander Iliev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An audio resampler is built to convert the sampling rate from 44.1 kHz to 16 kHz. An interpolator and decimator are created separately to change the sampling rate by an integer factor. The low pass filters used by the interpolator and decimator are obtained by two different approaches: namely the window method and the equiripple design. The performances of these two filters are evaluated in terms of 3-dB bandwidth and pass-band signal to noise ratios. The filters are implemented using the multistage Interpolated FIR approach. Polyphase structures are used to further reduce the computational load. The resampler is implemented on 16-bit fixed-point simulations. The described approach drastically reduces the filter order and thus the computational cost.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
EditorsM.B. Matthews
Pages1798-1800
Number of pages3
Volume2
StatePublished - 2004
EventConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 7 2004Nov 10 2004

Other

OtherConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period11/7/0411/10/04

Fingerprint

Sampling
Low pass filters
Signal to noise ratio
Bandwidth
Costs

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jin, W., Scordilis, M. S., & Iliev, A. (2004). Comparison and implementation of a 16-bit fixed-point audio resampler. In M. B. Matthews (Ed.), Conference Record - Asilomar Conference on Signals, Systems and Computers (Vol. 2, pp. 1798-1800)

Comparison and implementation of a 16-bit fixed-point audio resampler. / Jin, Wen; Scordilis, Michael S; Iliev, Alexander.

Conference Record - Asilomar Conference on Signals, Systems and Computers. ed. / M.B. Matthews. Vol. 2 2004. p. 1798-1800.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jin, W, Scordilis, MS & Iliev, A 2004, Comparison and implementation of a 16-bit fixed-point audio resampler. in MB Matthews (ed.), Conference Record - Asilomar Conference on Signals, Systems and Computers. vol. 2, pp. 1798-1800, Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/7/04.
Jin W, Scordilis MS, Iliev A. Comparison and implementation of a 16-bit fixed-point audio resampler. In Matthews MB, editor, Conference Record - Asilomar Conference on Signals, Systems and Computers. Vol. 2. 2004. p. 1798-1800
Jin, Wen ; Scordilis, Michael S ; Iliev, Alexander. / Comparison and implementation of a 16-bit fixed-point audio resampler. Conference Record - Asilomar Conference on Signals, Systems and Computers. editor / M.B. Matthews. Vol. 2 2004. pp. 1798-1800
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