seiichi horie / amakusa

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。

firinterpolator.cpp@8:1fa224c83cfa, 2017-02-18 (annotated)

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::FIRInterpolator::FIRInterpolator(uint16_t taps, float32_t *pCoeff, uint32_t block_size, uint8_t L )
shorie 5:3d6cf4dbf458 4 : AbstractFilter( block_size )
shorie 1:0a37bce4f985 5 {
shorie 1:0a37bce4f985 6 arm_fir_interpolate_init_f32(
shorie 1:0a37bce4f985 7 &(this->state),
shorie 1:0a37bce4f985 8 L,
shorie 1:0a37bce4f985 9 taps,
shorie 1:0a37bce4f985 10 pCoeff,
shorie 5:3d6cf4dbf458 11 new float32_t[taps/L+block_size-1],
shorie 5:3d6cf4dbf458 12 block_size);
shorie 1:0a37bce4f985 13 }
shorie 1:0a37bce4f985 14
shorie 1:0a37bce4f985 15 amakusa::FIRInterpolator::~FIRInterpolator()
shorie 1:0a37bce4f985 16 {
shorie 1:0a37bce4f985 17 delete [] this->state.pState;
shorie 1:0a37bce4f985 18 }
shorie 5:3d6cf4dbf458 19 void amakusa::FIRInterpolator::run( float32_t *pSrc, float32_t *pDst )
shorie 1:0a37bce4f985 20 {
shorie 1:0a37bce4f985 21 arm_fir_interpolate_f32(
shorie 1:0a37bce4f985 22 & this->state,
shorie 1:0a37bce4f985 23 pSrc,
shorie 1:0a37bce4f985 24 pDst,
shorie 5:3d6cf4dbf458 25 this->block_size
shorie 1:0a37bce4f985 26 );
shorie 1:0a37bce4f985 27 }