seiichi horie
Basic Audio Signal Processing Library
Dependents: unzen_sample_nucleo_f746 skeleton_unzen_nucleo_f746 ifmag_noise_canceller synthesizer_f746
BiQuadCascadeDF1 Class Reference
Wrapper class of the arm_biquad_cascade_df1_f32() and the arm_biquad_cascade_df1_init_f32(). More...
#include <biquadcascadedf1.h>
Inherits amakusa::AbstractFilter.
Public Member Functions | |
| BiQuadCascadeDF1 (uint16_t stages, float32_t *pCoeff, uint32_t block_size) | |
| Constructor. | |
| virtual | ~BiQuadCascadeDF1 () |
| deconstructor | |
| virtual void | run (float32_t *pSrc, float32_t *pDst) |
| Run the filter. | |
Detailed Description
Wrapper class of the arm_biquad_cascade_df1_f32() and the arm_biquad_cascade_df1_init_f32().
To use this class, include amakusa.h
The biquad filter is depicted as following. The pCoeff array has b0, b1, b2, a1, a2 parameter by this order. If the stage is N, N blockes of these parameers are given. The length of pCoeff is 5N.
x[n]---+-- b0 -->+---------+---y[n]
| ^ |
D | |
+-- b1 -->+<-- a1 --+
D | |
+-- b2 -->+<-- a2 --+
Definition at line 24 of file biquadcascadedf1.h.
Constructor & Destructor Documentation
| BiQuadCascadeDF1 | ( | uint16_t | stages, |
| float32_t * | pCoeff, | ||
| uint32_t | block_size | ||
| ) |
Constructor.
- Parameters:
-
[in] stages Number of the Bi-Quad stages. [in] pCoeff Ponter to the coefficients array. [in] blockSize Maximum number of the samples to be given to run() method at onece.
Definition at line 3 of file biquadcascadedf1.cpp.
| ~BiQuadCascadeDF1 | ( | ) | [virtual] |
deconstructor
Definition at line 14 of file biquadcascadedf1.cpp.
Member Function Documentation
| void run | ( | float32_t * | pSrc, |
| float32_t * | pDst | ||
| ) | [virtual] |
Run the filter.
- Parameters:
-
[in] pSrc Pointer to the source buffer to be filtered. [out] pDst Pointer to the destination buffer to store the filtered signal.
Definition at line 18 of file biquadcascadedf1.cpp.
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