/**
* LP synthesis filter.
- * @param out [out] pointer to output buffer
+ * @param[out] out pointer to output buffer
* @param filter_coeffs filter coefficients (-0x8000 <= (3.12) < 0x8000)
* @param in input signal
* @param buffer_length amount of data to process
/**
* LP synthesis filter.
- * @param out [out] pointer to output buffer
+ * @param[out] out pointer to output buffer
* - the array out[-filter_length, -1] must
* contain the previous result of this filter
* @param filter_coeffs filter coefficients.
/**
* LP zero synthesis filter.
- * @param out [out] pointer to output buffer
+ * @param[out] out pointer to output buffer
* @param filter_coeffs filter coefficients.
* @param in input signal
* - the array in[-filter_length, -1] must