Branch with 24/32 kHz inputs #121
Description
This is a branch that has optional support for 24 kHz and 32 kHz inputs that we've had some interest in:
https://github.com/henkmuller/lib_src/tree/feature/freq-24-32
24 and 32 can be used as outputs from 48 kHz too. Conversion from other frequencies (44.1, 88.2, 96, 176, 192) will need some additional filters and tests.
This branch contains additional 48->32 and 32->24 filters that will need to be checked by somebody with DSP knowledge.
As there is an N^2 table of conversion parameters and conversion coefficients, I can see value to at some stage make each frequency optional; that way more frequencies can be added without costing the earth. It will complicate testing though