Chapter 8

Sampling Rate Conversion

Several different sampling rates are established for digital audio applications. For broadcasting, professional and consumer audio, sampling rates of 32, 48 and 44.1 kHz are used. Moreover, other sampling rates are derived from different frame rates for film and video. In connecting systems with different uncoupled sampling rates, there is a need for sampling rate conversion. In this chapter, synchronous sampling rate conversion with rational factor L/M for coupled clock rates and asynchronous sampling rate conversion will be discussed where the different sampling rates are not synchronized with each other.