A real-time audio frequency cubic spline interpolator

Emmanuel I. Okanla; Patrick A. Gaydecki

doi:10.1016/0165-1684(95)00145-X

A real-time audio frequency cubic spline interpolator

Emmanuel I. Okanla, Patrick A. Gaydecki

University of Manchester (UOM)

Research output: Contribution to journal › Article › peer-review

Abstract

The implementation of a real-time cubic spline interpolator for audio frequency applications is presented. The interpolator is based on the parabolically blended cubic spline algorithm (Browne and Gaydecki, 1987; Rogers and Adams, 1990), and is implemented in a TMS320C25 DSP environment. Results based on both time domain data and spectral analyses are presented. These show that, for a PC data acquisition system already equipped with a DSP board, the interpolator can render the need for a hardware reconstruction filter at the output of a digital-to-analogue converter (DAC) unnecessary.

Original language	English
Pages (from-to)	45-55
Number of pages	11
Journal	Signal Processing
Volume	49
Issue number	1
DOIs	https://doi.org/10.1016/0165-1684(95)00145-X
Publication status	Published - Feb 1996

Keywords

Cubic spline interpolation
DSP
Parabolically blended spline
Real-time interpolation
TMS320

Access to Document

10.1016/0165-1684(95)00145-X

Cite this

@article{dcd579e62c4f4925894cd14ae0b9cbbb,

title = "A real-time audio frequency cubic spline interpolator",

abstract = "The implementation of a real-time cubic spline interpolator for audio frequency applications is presented. The interpolator is based on the parabolically blended cubic spline algorithm (Browne and Gaydecki, 1987; Rogers and Adams, 1990), and is implemented in a TMS320C25 DSP environment. Results based on both time domain data and spectral analyses are presented. These show that, for a PC data acquisition system already equipped with a DSP board, the interpolator can render the need for a hardware reconstruction filter at the output of a digital-to-analogue converter (DAC) unnecessary.",

keywords = "Cubic spline interpolation, DSP, Parabolically blended spline, Real-time interpolation, TMS320",

author = "Okanla, {Emmanuel I.} and Gaydecki, {Patrick A.}",

year = "1996",

month = feb,

doi = "10.1016/0165-1684(95)00145-X",

language = "English",

volume = "49",

pages = "45--55",

journal = "Signal Processing",

issn = "0165-1684",

publisher = "Elsevier BV",

number = "1",

}

TY - JOUR

T1 - A real-time audio frequency cubic spline interpolator

AU - Okanla, Emmanuel I.

AU - Gaydecki, Patrick A.

PY - 1996/2

Y1 - 1996/2

N2 - The implementation of a real-time cubic spline interpolator for audio frequency applications is presented. The interpolator is based on the parabolically blended cubic spline algorithm (Browne and Gaydecki, 1987; Rogers and Adams, 1990), and is implemented in a TMS320C25 DSP environment. Results based on both time domain data and spectral analyses are presented. These show that, for a PC data acquisition system already equipped with a DSP board, the interpolator can render the need for a hardware reconstruction filter at the output of a digital-to-analogue converter (DAC) unnecessary.

AB - The implementation of a real-time cubic spline interpolator for audio frequency applications is presented. The interpolator is based on the parabolically blended cubic spline algorithm (Browne and Gaydecki, 1987; Rogers and Adams, 1990), and is implemented in a TMS320C25 DSP environment. Results based on both time domain data and spectral analyses are presented. These show that, for a PC data acquisition system already equipped with a DSP board, the interpolator can render the need for a hardware reconstruction filter at the output of a digital-to-analogue converter (DAC) unnecessary.

KW - Cubic spline interpolation

KW - DSP

KW - Parabolically blended spline

KW - Real-time interpolation

KW - TMS320

UR - http://www.scopus.com/inward/record.url?scp=0030083480&partnerID=8YFLogxK

U2 - 10.1016/0165-1684(95)00145-X

DO - 10.1016/0165-1684(95)00145-X

M3 - Article

AN - SCOPUS:0030083480

SN - 0165-1684

VL - 49

SP - 45

EP - 55

JO - Signal Processing

JF - Signal Processing

IS - 1

ER -

A real-time audio frequency cubic spline interpolator

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this