Output the audio signal with filtering by graphic equalizer in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号をグラフィック・イコライザを通して,ボードに搭載されているCODEC で出力する.
Dependencies: F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer
arm_biquad_casd_df1_inst_q31 Struct Reference
Instance structure for the Q31 Biquad cascade filter. More...
#include <arm_math.h>
Data Fields | |
uint32_t | numStages |
number of 2nd order stages in the filter. | |
q31_t * | pState |
Points to the array of state coefficients. | |
q31_t * | pCoeffs |
Points to the array of coefficients. | |
uint8_t | postShift |
Additional shift, in bits, applied to each output sample. |
Detailed Description
Instance structure for the Q31 Biquad cascade filter.
Definition at line 1288 of file arm_math.h.
Field Documentation
uint32_t numStages |
number of 2nd order stages in the filter.
Overall order is 2*numStages.
Definition at line 1290 of file arm_math.h.
q31_t* pCoeffs |
Points to the array of coefficients.
The array is of length 5*numStages.
Definition at line 1292 of file arm_math.h.
uint8_t postShift |
Additional shift, in bits, applied to each output sample.
Definition at line 1293 of file arm_math.h.
q31_t* pState |
Points to the array of state coefficients.
The array is of length 4*numStages.
Definition at line 1291 of file arm_math.h.
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