Introduction

The vDSP API provides mathematical functions for applications such as speech, sound, audio, and video processing, diagnostic medical imaging, radar signal processing, seismic analysis, and scientific data processing.

You should read this document if you need to work with vectors, convolution, Fourier transforms, or perform other similar signal processing tasks.

Organization of This Document

This document is divided into two chapters:

• “About the vDSP API”—Describes calling conventions, naming conventions, and data types used by the vDSP API.

• “Using Fourier Transforms”—Covers the Fourier transform functionality in vDSP at a conceptual level.