Support for to/from ratio. #12
Description
Ratios are used for conversion between audio interfaces. Each have clock crystals that deviate slightly from one another. Typically in the range of 100 PPM. The current method only supports an integer to and an integer from sample rate. This is not precise enough for this type of application. In libsamplerate src_callback_read(src_state, ratio, len, buf) uses a floating point ratio as you can see. Thanks for considering!