Accurate Cascade Graphic Equalizer

AN-435 Designing with the LMC835 Digital-Controlled Graphic Equalizer

Implementing a Low-latency Parallel Graphic Equalizer with Heterogeneous Computing

This paper describes the implementation of a recently introduced parallel graphic equalizer (PGE) in a heterogeneous way. The control and audio signal processing parts of the PGE are distributed to a PC and to a signal processor, of WaveCore architecture, respectively. This arrangement is particularly suited to the algorithm in question, benefiting from the low-latency characteristics of the au...

Graphic Equalizer Design Using Higher-Order Recursive Filters

A straight-forward design of graphic equalizers with minimumphase behavior based on recently developed higher-order bandshelving filters is presented. Due to the high filter order, the gain in one band is almost completely independent from the gain in the other bands. Although no special care will be taken to design filters with complementary edges except for a suitable definition of the cut-of...

Accurate quantitative phase imaging through telecentric digital holo- graphic microscopy

The use of non-telecentric imaging systems in quantitative phase digital holographic microscopy introduces strong inaccuracies. We show that even negligible errors in the radius and center of curvature of the remaining quadratic phase factor introduce big errors in the numerical phase measurements. The errors depend on the position of the object in the field-of-view. However, when a telecentric...

A pre-distortion based design method for digital audio graphic equalizer

Article history: Available online 26 November 2013