void AXSetMultiVoiceBiquadCoefs(AXMVPB *mv, u16 b0, u16 b1, u16 b2, u16 a1, u16 a2);
||Pointer to the multi-voice.
|b0, b1, b2, a1, a2
Filter coefficients (fixed-point values; 2-bit integer part and 14-bit fraction part).
Applies the given filter coefficients to multi-voice mv.
Use after biquad filters are enabled by
For more information on the biquad filter, see the Filtering
Due to the difference in PPC and DSP architectures, PPC being a floating-point processor and DSP a
fixed point processor, the output of a voice processed on PPC might sound different than the same voice
processed on DSP. This is especially true when using biquad and LPF filters. DSP has a 16-bit width to
represent coefficients. This limitation imposes restrictions on the realization of stable filters for
extreme cut-off filters. For example, realizing a low pass filter using biquad less than 160Hz, might
be difficult for all inputs. It is up to the developers to make sure that the filters they submit
to the DSP are stable for all the inputs that are processed through such a filter.
Do Not Call From
2013-10-20 Initial version.