Sample Rate Converter (SRC)

(SRC) A digital processor or computer algorithm able to convert digital audio signals recorded at one sample rate to a completely different sample rate, eg. from 96kHz to 44.1kHz. In the case of a downward conversion, the appropriate anti-alias filtering is applied to ensure the new file doesn't contain any source componets above half the new sample rate. For an upward conversion, the upper regions of the bandwidth in the new sample rate will carry no information as there was none available in the source file due to the restrictions of its lower sample rate. Not all SRCs are as accurate as they should be, but the best are essentially a perfect and transparent process.