Basic Audio Signal Processing Library

Dependents:   unzen_sample_nucleo_f746 skeleton_unzen_nucleo_f746 ifmag_noise_canceller synthesizer_f746

オーディオ信号処理用のライブラリです。

mbed-dspのフィルタ群向けに作ったクラス・ラッパーのほか、以下のクラスを用意しています。

  • ヒステリシス
  • sin/cosオシレータ
  • リミッター

クラスは全て名前空間amakusaに含まれます。

Committer:
shorie
Date:
Sat Feb 18 01:05:19 2017 +0000
Revision:
8:1fa224c83cfa
Parent:
5:3d6cf4dbf458
Fixed mistake of visibility in the limitterlinatan.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shorie 1:0a37bce4f985 1 #include "amakusa.h"
shorie 1:0a37bce4f985 2
shorie 5:3d6cf4dbf458 3 amakusa::BiQuadCascadeDF2T::BiQuadCascadeDF2T(uint16_t stages, float32_t *pCoeff, uint32_t block_size)
shorie 5:3d6cf4dbf458 4 : AbstractFilter( block_size )
shorie 1:0a37bce4f985 5 {
shorie 1:0a37bce4f985 6 arm_biquad_cascade_df2T_init_f32(
shorie 1:0a37bce4f985 7 &(this->state),
shorie 1:0a37bce4f985 8 stages,
shorie 1:0a37bce4f985 9 pCoeff,
shorie 1:0a37bce4f985 10 new float32_t[stages*2]
shorie 1:0a37bce4f985 11 );
shorie 1:0a37bce4f985 12 }
shorie 1:0a37bce4f985 13
shorie 1:0a37bce4f985 14 amakusa::BiQuadCascadeDF2T::~BiQuadCascadeDF2T()
shorie 1:0a37bce4f985 15 {
shorie 1:0a37bce4f985 16 delete [] this->state.pState;
shorie 1:0a37bce4f985 17 }
shorie 5:3d6cf4dbf458 18 void amakusa::BiQuadCascadeDF2T::run( float32_t *pSrc, float32_t *pDst)
shorie 1:0a37bce4f985 19 {
shorie 1:0a37bce4f985 20 arm_biquad_cascade_df2T_f32(
shorie 1:0a37bce4f985 21 & this->state,
shorie 1:0a37bce4f985 22 pSrc,
shorie 1:0a37bce4f985 23 pDst,
shorie 5:3d6cf4dbf458 24 this->block_size
shorie 1:0a37bce4f985 25 );
shorie 1:0a37bce4f985 26 }