AES E-Library

AES E-Library

Variable Analog Filters for the Support of Variable Sampling-Rate Digital Audio

Document Thumbnail

Computer music systems often lack the capability of producing full-bandwidth sound in real time. Yet for the development phase of a musical work, the requirement for real-time processing can be more important than the requirement for high fidelity. There is a need for the capability of computing samples at reduced rates, and converting the samples in real time. But the reconstruction filter must then have a variable cutoff frequency. An output subsystem for computer music is described. It is based on a switched-capacitor reconstruction filter with variable cutoff frequency. The subsystem allows the generation and conversion of samples at rates specified under software control. A similar design can be used for variable sampling-rate audio input.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=4905

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


AES - Audio Engineering Society