Filters are commonplace elements in audio signal processing. Most well-known filter topologies generate fixed responses with fixed element values, or use variable resistors to alter their responses under user control. This paper explores solutions to varying the response of filters and equalizers using digital-control techniques suitable for computer-controlled systems. High-pass, low-pass, band-pass, band-reject, and parametric topologies are covered using VCAs, resistor ladders, and multiplying DACs as control elements.
(See document for exact affiliation information.)
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 Join the AES. If you need to check your member status, login to the Member Portal.
