This sample executes some mathematical functions
that can be used for audio processing like
filtering (Fast Fourier Transform (FFT)) or
echo cancellation (Least Mean Square (LMS) filter algorithm).
This is an example that demonstrates how to include a proprietary
static library into the Zephyr build system.
The library is in an out of tree location.
To use this sample, with an out of tree library, one needs to define
an environment variable LIB_LOCATION.
If that is not defined, a default Zephyr API is used instead.
By default it uses CMSIS-DSP backend for math operations.
In README one can find more information.
Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
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