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Dependencies: Array_Matrix DSP_ADDA
Dependents: Demo_DSP_ADDA_Multirate DSP_AD_DA_Multirate DSP_GraphicEqualizerB DSP_VariableLHpfB ... more
Diff: MultirateLiPhCoefs.cpp
- Revision:
- 0:79c0b1e2fd10
- Child:
- 2:aa092bbc8877
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MultirateLiPhCoefs.cpp Mon May 25 06:13:53 2020 +0000
@@ -0,0 +1,39 @@
+//-------------------------------------------------------------------
+// デフォルトの補間用フィルタの係数
+// ORDER_, HK1_, HK2_, HK3_ が他の箇所で定義されていない場合は
+// このファイルの値が使われる
+//
+// 2020/05/25, Copyright (c) 2020 MIKAMI, Naoki
+//-------------------------------------------------------------------
+
+#include "MultirateLiPh.hpp"
+using namespace Mikami;
+
+// 以下の係数は，入力の標本化周波数は 10 kHz，出力の標本化周波数は 40 kHz
+// として設計したもの
+//
+// 使用窓関数 Kaiser 窓
+// 標本化周波数 (kHz) 40.000000
+// 次数 72
+// 種類 LPF
+// 遮断周波数 (kHz) 5.000000
+// 減衰量 (dB) 40.00
+MBED_WEAK const int MultirateLiPh::ORDER_ = 72;
+MBED_WEAK const float MultirateLiPh::HK1_[] = {
+ 4.431256E-03f, -8.146596E-03f, 1.341366E-02f, -2.077330E-02f,
+ 3.116614E-02f, -4.650688E-02f, 7.151836E-02f, -1.218529E-01f,
+ 2.971602E-01f, 8.993316E-01f, -1.751857E-01f, 9.144896E-02f,
+ -5.727932E-02f, 3.802786E-02f, -2.550498E-02f, 1.678651E-02f,
+ -1.055827E-02f, 6.120216E-03f};
+MBED_WEAK const float MultirateLiPh::HK2_[] = {
+ 7.405152E-03f, -1.315348E-02f, 2.125564E-02f, -3.257789E-02f,
+ 4.868468E-02f, -7.290120E-02f, 1.139337E-01f, -2.039652E-01f,
+ 6.338376E-01f, 6.338376E-01f, -2.039652E-01f, 1.139337E-01f,
+ -7.290120E-02f, 4.868468E-02f, -3.257789E-02f, 2.125564E-02f,
+ -1.315348E-02f, 7.405152E-03f};
+MBED_WEAK const float MultirateLiPh::HK3_[] = {
+ 6.120216E-03f, -1.055827E-02f, 1.678651E-02f, -2.550498E-02f,
+ 3.802786E-02f, -5.727932E-02f, 9.144896E-02f, -1.751857E-01f,
+ 8.993316E-01f, 2.971602E-01f, -1.218529E-01f, 7.151836E-02f,
+ -4.650688E-02f, 3.116614E-02f, -2.077330E-02f, 1.341366E-02f,
+ -8.146596E-03f, 4.431256E-03f};
\ No newline at end of file