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Proceedings ArticleDOI

A universal, digital sampling frequency converter for digital audio

R. Lagadec, +1 more
- Vol. 6, pp 595-598
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TLDR
A novel approach to digital sampling frequency conversion based on a single, multistage filter and adapted to conversion between arbitrary, a priori unknown sampling frequency ratios is presented.
Abstract: 
Digital Audio requires high-quality signal conversion between a variety of sampling frequencies, often in non-trivial integer ratios. In such applications, conventional methods based on analog processing or classical FIR filter rate-changing are not adequate. A novel approach to digital sampling frequency conversion based on a single, multistage filter and adapted to conversion between arbitrary, a priori unknown sampling frequency ratios is presented. Its design, implementation and control are discussed in some detail.

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Citations
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Journal ArticleDOI

Digital methods for conversion between arbitrary sampling frequencies

T. Ramstad
- 01 Jan 1984 - 
TL;DR: In this article, the authors present filtering methods for interfacing time-discrete systems with different sampling frequencies, which are applicable for sampling rate conversion between any two sampling frequencies; the conversion ratio may even be irrational or slowly time varying.
Patent

Interpolation filter with reduced set of filter coefficients

Robert Adams, +2 more
TL;DR: In this article, an asynchronous digital sample rate converter includes a random access memory for storing input data values and a read only memory to store a reduced set of interpolation filter coefficients, and an auto-centering scheme which is a first order closed loop system with a digital integrator fed by an approximation of the input to output sample rate ratio.
Proceedings ArticleDOI

A novel structure for real-time digital sample-rate converters with finite precision error analysis

S. Park, +2 more
TL;DR: A real-time implementation of a sampling rate conversion technique between two arbitrarily chosen sampling rates is discussed and the assembly code for the main routine and the filtering method to generate interpolated samples are included.
Patent

Digitally controlled oscillator for a phase-locked loop providing a residue signal for use in continuously variable interpolation and decimation filters

Robert Adams
TL;DR: In this article, a digital phase-locked loop is used to extrapolate or interpolate outputs of continuously variable interpolation or decimation filters using the output clock signal generated according to the digital controlled oscillator.
Proceedings ArticleDOI

An efficient approach for conversion between arbitrary sampling frequencies

T. Saramaki, +1 more
TL;DR: An efficient technique is introduced for conversion between arbitrary input and output sampling frequencies, denoted by F/ Sub in/ and F/sub out/ and it is shown how this approach compares to other existing techniques.
References
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Journal ArticleDOI

Optimum FIR digital filter implementations for decimation, interpolation, and narrow-band filtering

R. Crochiere, +1 more
- 01 Oct 1975 - 
TL;DR: In this article, a general theory of multistage decimators and interpolators for sampling rate reduction and sampling rate increase is presented, and a set of curves and necessary relations for optimally designing multi-stage decimator is also given.
Journal Article

On the design of high-order linear phase FIR filters

D. Pelloni, +1 more
- 01 Jan 1980 - 
Journal Article

High Quality Analog Filters for Digital Audio

Roger Lagadec, +2 more
- 01 Oct 1980 -