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MicroDexed
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Code Issues Releases Wiki Activity

Adding FreeVerb-SIMD for T_3.6.

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pull/111/head
Holger Wirtz 3 years ago
parent 344c48dab1
commit 4b4a3d8380
6 changed files with 1668 additions and 583 deletions
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  1. 8
      MicroDexed.ino
  2. 10
      UI.hpp
  3. 2
      config.h
  4. 1206
      drumset.h
  5. 837
      effect_freeverb_simd.cpp
  6. 184
      effect_freeverb_simd.h

8
MicroDexed.ino
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@ -41,8 +41,12 @@ using namespace TeensyTimerTool;
#ifdef USE_PLATEREVERB #ifdef USE_PLATEREVERB
#include "effect_platervbstereo.h" #include "effect_platervbstereo.h"
#else #else
#ifndef TEENSY_4
#include "effect_freeverb_simd.h"
#else
#include "effect_freeverbf.h" #include "effect_freeverbf.h"
#endif #endif
#endif
#include "template_mixer.hpp" #include "template_mixer.hpp"
#include "UI.hpp" #include "UI.hpp"
#if NUM_DRUMS > 0 #if NUM_DRUMS > 0
@ -77,9 +81,13 @@ AudioMixer<4> reverb_mixer_l;
#ifdef USE_PLATEREVERB #ifdef USE_PLATEREVERB
AudioEffectPlateReverb reverb; AudioEffectPlateReverb reverb;
#else #else
#ifndef TEENSY_4
AudioEffectFreeverbSIMDStereo freeverb;
#else
AudioEffectFreeverbStereoFloat freeverb; AudioEffectFreeverbStereoFloat freeverb;
#endif #endif
#endif #endif
#endif
AudioMixer<4> master_mixer_r; AudioMixer<4> master_mixer_r;
AudioMixer<4> master_mixer_l; AudioMixer<4> master_mixer_l;
AudioAmplifier volume_r; AudioAmplifier volume_r;

10
UI.hpp
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@ -35,8 +35,12 @@
#ifdef USE_PLATEREVERB #ifdef USE_PLATEREVERB
#include "effect_platervbstereo.h" #include "effect_platervbstereo.h"
#else #else
#ifndef TEENSY_4
#include "effect_freeverb_simd.h"
#else
#include "effect_freeverbf.h" #include "effect_freeverbf.h"
#endif #endif
#endif
#include "template_mixer.hpp" #include "template_mixer.hpp"
#include "drumset.h" #include "drumset.h"
@ -80,7 +84,7 @@ extern uint8_t seq_track_type[NUM_SEQ_TRACKS];
extern uint8_t seq_step; extern uint8_t seq_step;
extern uint8_t seq_chord_key_ammount; extern uint8_t seq_chord_key_ammount;
extern int seq_tempo_ms; extern int seq_tempo_ms;
extern uint8_t seq_bpm; extern int seq_bpm;
extern uint8_t seq_chain_lenght; extern uint8_t seq_chain_lenght;
extern bool seq_running; extern bool seq_running;
extern bool seq_recording; extern bool seq_recording;
@ -142,9 +146,13 @@ extern AudioMixer<4> reverb_mixer_l;
#ifdef USE_PLATEREVERB #ifdef USE_PLATEREVERB
extern AudioEffectPlateReverb reverb; extern AudioEffectPlateReverb reverb;
#else #else
#ifndef TEENSY_4
extern AudioEffectFreeverbSIMDStereo freeverb;
#else
extern AudioEffectFreeverbStereoFloat freeverb; extern AudioEffectFreeverbStereoFloat freeverb;
#endif #endif
#endif #endif
#endif
extern AudioMixer<4> master_mixer_r; extern AudioMixer<4> master_mixer_r;
extern AudioMixer<4> master_mixer_l; extern AudioMixer<4> master_mixer_l;
extern AudioEffectStereoMono stereo2mono; extern AudioEffectStereoMono stereo2mono;

2
config.h
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@ -54,7 +54,7 @@
// sed -i.orig 's/^#define USB_MIDI_SYSEX_MAX 290/#define USB_MIDI_SYSEX_MAX 4104/' /usr/local/arduino-teensy/hardware/teensy/avr/cores/teensy4/usb_midi.h // sed -i.orig 's/^#define USB_MIDI_SYSEX_MAX 290/#define USB_MIDI_SYSEX_MAX 4104/' /usr/local/arduino-teensy/hardware/teensy/avr/cores/teensy4/usb_midi.h
//#define USB_MIDI_SYSEX_MAX 4104 //#define USB_MIDI_SYSEX_MAX 4104
#define VERSION "1.1.1" #define VERSION "1.1.2"
//************************************************************************************************* //*************************************************************************************************
//* DEVICE SETTINGS //* DEVICE SETTINGS

1206
drumset.h
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837
effect_freeverb_simd.cpp
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@ -0,0 +1,837 @@
/* Audio Library for Teensy 3.X
Copyright (c) 2018, Paul Stoffregen, paul@pjrc.com
Development of this audio library was funded by PJRC.COM, LLC by sales of
Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
open source software by purchasing Teensy or other PJRC products.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice, development funding notice, and this permission
notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
// A fixed point implementation of Freeverb by Jezar at Dreampoint
// http://blog.bjornroche.com/2012/06/freeverb-original-public-domain-code-by.html
// https://music.columbia.edu/pipermail/music-dsp/2001-October/045433.html
#include <Arduino.h>
#include "effect_freeverb_simd.h"
#include "utility/dspinst.h"
AudioEffectFreeverbSIMD::AudioEffectFreeverbSIMD() : AudioStream(1, inputQueueArray)
{
memset(comb1buf, 0, sizeof(comb1buf));
memset(comb2buf, 0, sizeof(comb2buf));
memset(comb3buf, 0, sizeof(comb3buf));
memset(comb4buf, 0, sizeof(comb4buf));
memset(comb5buf, 0, sizeof(comb5buf));
memset(comb6buf, 0, sizeof(comb6buf));
memset(comb7buf, 0, sizeof(comb7buf));
memset(comb8buf, 0, sizeof(comb8buf));
comb1index = 0;
comb2index = 0;
comb3index = 0;
comb4index = 0;
comb5index = 0;
comb6index = 0;
comb7index = 0;
comb8index = 0;
comb1filter = 0;
comb2filter = 0;
comb3filter = 0;
comb4filter = 0;
comb5filter = 0;
comb6filter = 0;
comb7filter = 0;
comb8filter = 0;
combdamp1 = 6553;
combdamp2 = 26215;
combfeeback = 27524;
memset(allpass1buf, 0, sizeof(allpass1buf));
memset(allpass2buf, 0, sizeof(allpass2buf));
memset(allpass3buf, 0, sizeof(allpass3buf));
memset(allpass4buf, 0, sizeof(allpass4buf));
allpass1index = 0;
allpass2index = 0;
allpass3index = 0;
allpass4index = 0;
}
// cleaner sat16 by http://www.moseleyinstruments.com/
__attribute__((unused))
static int16_t sat16(int32_t n, int rshift) {
// we should always round towards 0
// to avoid recirculating round-off noise
//
// a 2s complement positive number is always
// rounded down, so we only need to take
// care of negative numbers
if (n < 0) {
n = n + (~(0xFFFFFFFFUL << rshift));
}
n = n >> rshift;
if (n > 32767) {
return 32767;
}
if (n < -32768) {
return -32768;
}
return n;
}
// TODO: move this to one of the data files, use in output_adat.cpp, output_tdm.cpp, etc
static const audio_block_t zeroblock = {
0, 0, 0, {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#if AUDIO_BLOCK_SAMPLES > 16
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 32
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 48
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 64
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 80
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 96
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
#if AUDIO_BLOCK_SAMPLES > 112
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
#endif
}
};
void AudioEffectFreeverbSIMD::update()
{
#if defined(__ARM_ARCH_7EM__)
const audio_block_t *block;
audio_block_t *outblock;
int i;
int16_t input, bufout, output;
int32_t sum;
uint32_t PackA, PackB;
outblock = allocate();
if (!outblock) {
audio_block_t *tmp = receiveReadOnly(0);
if (tmp) release(tmp);
return;
}
block = receiveReadOnly(0);
if (!block) block = &zeroblock;
for (i = 0; i < AUDIO_BLOCK_SAMPLES; i++) {
// TODO: scale numerical range depending on roomsize & damping
asm volatile(
"MUL %[RESULT], %[BLOCK], %[CONST]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(input)
:[BLOCK]"r"((int32_t)block->data[i]), [CONST]"r"(8738), [R_RND]"r"(0x1FFFF), [I_SHIFT]"i"(17)
:
);
sum = 0;
asm volatile (
"QADD %[SUM], %[C1], %[C2]\n"
"QADD %[SUM], %[C3], %[SUM]\n"
"QADD %[SUM], %[C4], %[SUM]\n"
"QADD %[SUM], %[C5], %[SUM]\n"
"QADD %[SUM], %[C6], %[SUM]\n"
"QADD %[SUM], %[C7], %[SUM]\n"
"QADD %[SUM], %[C8], %[SUM]\n"
:[SUM]"=r"(sum)
:[C1]"r"((int32_t)comb1buf[comb1index]), [C2]"r"((int32_t)comb2buf[comb2index]), [C3]"r"((int32_t)comb3buf[comb3index]), [C4]"r"((int32_t)comb4buf[comb4index]), [C5]"r"((int32_t)comb5buf[comb5index]), [C6]"r"((int32_t)comb6buf[comb6index]), [C7]"r"((int32_t)comb7buf[comb7index]), [C8]"r"((int32_t)comb8buf[comb8index])
:
);
//output = asm_sat16((sum * 31457), 0x1FFFF, 17);
asm volatile (
"MUL %[RESULT], %[SUM], %[CONST]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(output)
:[SUM]"r"((int32_t)sum), [CONST]"r"(31457), [R_RND]"r"(0x1FFFF), [I_SHIFT]"i"(17)
:
);
// Comb1
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb1buf[comb1index]), [INBOT]"r"(comb1filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb1filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb1buf[comb1index])
:[FIL]"r"(comb1filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb2
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb2buf[comb2index]), [INBOT]"r"(comb2filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb2filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb2buf[comb2index])
:[FIL]"r"(comb2filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb3
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb3buf[comb3index]), [INBOT]"r"(comb3filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb3filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb3buf[comb3index])
:[FIL]"r"(comb3filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb4
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb4buf[comb4index]), [INBOT]"r"(comb4filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb4filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb4buf[comb4index])
:[FIL]"r"(comb4filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb5
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb5buf[comb5index]), [INBOT]"r"(comb5filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb5filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb5buf[comb5index])
:[FIL]"r"(comb5filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb6
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb6buf[comb6index]), [INBOT]"r"(comb6filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb6filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb6buf[comb6index])
:[FIL]"r"(comb6filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb7
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb7buf[comb7index]), [INBOT]"r"(comb7filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb7filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile (
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb7buf[comb7index])
:[FIL]"r"(comb7filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
// Comb8
asm volatile (
"PKHBT %[PACKA], %[INBOT], %[INTOP], LSL #16\n"
:[PACKA]"=&r"(PackA)
:[INTOP]"r"(comb8buf[comb8index]), [INBOT]"r"(comb8filter)
:
);
asm volatile (
"PKHBT %[PACKB], %[INBOT], %[INTOP], LSL #16\n"
:[PACKB]"=&r"(PackB)
:[INTOP]"r"(combdamp2), [INBOT]"r"(combdamp1)
:
);
asm volatile(
"BIC %[RESULT], %[RESULT], #0\n"
"SMLAD %[RESULT], %[PACKA], %[PACKB], %[RESULT]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(comb8filter)
:[PACKA]"r"(PackA), [PACKB]"r"(PackB), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:"memory"
);
asm volatile(
"MUL %[RESULT], %[FIL], %[FB]\n"
"CMN %[RESULT], #0\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
"ADD %[RESULT], %[RESULT], %[IN]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(comb8buf[comb8index])
:[FIL]"r"(comb8filter), [IN]"r"((int32_t)input), [FB]"r"((int32_t)combfeeback), [R_RND]"r"(0x7FFF), [I_SHIFT]"i"(15)
:
);
bufout = allpass1buf[allpass1index];
allpass1buf[allpass1index] = output + (bufout >> 1);
asm volatile(
"SUBS %[RESULT], %[BUF], %[OUT]\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(output)
:[BUF]"r"((int32_t)bufout), [OUT]"r"((int32_t)output), [R_RND]"r"(0x1), [I_SHIFT]"i"(1)
:
);
bufout = allpass2buf[allpass2index];
allpass2buf[allpass2index] = output + (bufout >> 1);
asm volatile(
"SUBS %[RESULT], %[BUF], %[OUT]\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(output)
:[BUF]"r"((int32_t)bufout), [OUT]"r"((int32_t)output), [R_RND]"r"(0x1), [I_SHIFT]"i"(1)
:
);
bufout = allpass3buf[allpass3index];
allpass3buf[allpass3index] = output + (bufout >> 1);
asm volatile(
"SUBS %[RESULT], %[BUF], %[OUT]\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(output)
:[BUF]"r"((int32_t)bufout), [OUT]"r"((int32_t)output), [R_RND]"r"(0x1), [I_SHIFT]"i"(1)
:
);
bufout = allpass4buf[allpass4index];
allpass4buf[allpass4index] = output + (bufout >> 1);
asm volatile(
"SUBS %[RESULT], %[BUF], %[OUT]\n"
"IT MI\n"
"ADDMI %[RESULT], %[RESULT], %[R_RND]\n"
"SSAT %[RESULT], #16, %[RESULT], ASR %[I_SHIFT]\n"
:[RESULT]"=&r"(output)
:[BUF]"r"((int32_t)bufout), [OUT]"r"((int32_t)output), [R_RND]"r"(0x1), [I_SHIFT]"i"(1)
:
);
asm volatile(
"MUL %[RESULT], %[OUT], %[CONST]\n"
"SSAT %[RESULT], #16, %[RESULT]\n"
:[RESULT]"=&r"(outblock->data[i])
:[OUT]"r"((int32_t)output), [CONST]"r"(30)
:
);
if (++allpass1index >= sizeof(allpass1buf) / sizeof(int16_t)) allpass1index = 0;
if (++allpass2index >= sizeof(allpass2buf) / sizeof(int16_t)) allpass2index = 0;
if (++allpass3index >= sizeof(allpass3buf) / sizeof(int16_t)) allpass3index = 0;
if (++allpass4index >= sizeof(allpass4buf) / sizeof(int16_t)) allpass4index = 0;
if (++comb1index >= sizeof(comb1buf) / sizeof(int16_t)) comb1index = 0;
if (++comb2index >= sizeof(comb2buf) / sizeof(int16_t)) comb2index = 0;
if (++comb3index >= sizeof(comb3buf) / sizeof(int16_t)) comb3index = 0;
if (++comb4index >= sizeof(comb4buf) / sizeof(int16_t)) comb4index = 0;
if (++comb5index >= sizeof(comb5buf) / sizeof(int16_t)) comb5index = 0;
if (++comb6index >= sizeof(comb6buf) / sizeof(int16_t)) comb6index = 0;
if (++comb7index >= sizeof(comb7buf) / sizeof(int16_t)) comb7index = 0;
if (++comb8index >= sizeof(comb8buf) / sizeof(int16_t)) comb8index = 0;
}
transmit(outblock);
release(outblock);
if (block != &zeroblock) release((audio_block_t *)block);
#elif defined(KINETISL)
audio_block_t *block;
block = receiveReadOnly(0);
if (block) release(block);
#endif
}
AudioEffectFreeverbSIMDStereo::AudioEffectFreeverbSIMDStereo() : AudioStream(1, inputQueueArray)
{
memset(comb1bufL, 0, sizeof(comb1bufL));
memset(comb2bufL, 0, sizeof(comb2bufL));
memset(comb3bufL, 0, sizeof(comb3bufL));
memset(comb4bufL, 0, sizeof(comb4bufL));
memset(comb5bufL, 0, sizeof(comb5bufL));
memset(comb6bufL, 0, sizeof(comb6bufL));
memset(comb7bufL, 0, sizeof(comb7bufL));
memset(comb8bufL, 0, sizeof(comb8bufL));
comb1indexL = 0;
comb2indexL = 0;
comb3indexL = 0;
comb4indexL = 0;
comb5indexL = 0;
comb6indexL = 0;
comb7indexL = 0;
comb8indexL = 0;
comb1filterL = 0;
comb2filterL = 0;
comb3filterL = 0;
comb4filterL = 0;
comb5filterL = 0;
comb6filterL = 0;
comb7filterL = 0;
comb8filterL = 0;
memset(comb1bufR, 0, sizeof(comb1bufR));
memset(comb2bufR, 0, sizeof(comb2bufR));
memset(comb3bufR, 0, sizeof(comb3bufR));
memset(comb4bufR, 0, sizeof(comb4bufR));
memset(comb5bufR, 0, sizeof(comb5bufR));
memset(comb6bufR, 0, sizeof(comb6bufR));
memset(comb7bufR, 0, sizeof(comb7bufR));
memset(comb8bufR, 0, sizeof(comb8bufR));
comb1indexR = 0;
comb2indexR = 0;
comb3indexR = 0;
comb4indexR = 0;
comb5indexR = 0;
comb6indexR = 0;
comb7indexR = 0;
comb8indexR = 0;
comb1filterR = 0;
comb2filterR = 0;
comb3filterR = 0;
comb4filterR = 0;
comb5filterR = 0;
comb6filterR = 0;
comb7filterR = 0;
comb8filterR = 0;
combdamp1 = 6553;
combdamp2 = 26215;
combfeeback = 27524;
memset(allpass1bufL, 0, sizeof(allpass1bufL));
memset(allpass2bufL, 0, sizeof(allpass2bufL));
memset(allpass3bufL, 0, sizeof(allpass3bufL));
memset(allpass4bufL, 0, sizeof(allpass4bufL));
allpass1indexL = 0;
allpass2indexL = 0;
allpass3indexL = 0;
allpass4indexL = 0;
memset(allpass1bufR, 0, sizeof(allpass1bufR));
memset(allpass2bufR, 0, sizeof(allpass2bufR));
memset(allpass3bufR, 0, sizeof(allpass3bufR));
memset(allpass4bufR, 0, sizeof(allpass4bufR));
allpass1indexR = 0;
allpass2indexR = 0;
allpass3indexR = 0;
allpass4indexR = 0;
}
void AudioEffectFreeverbSIMDStereo::update()
{
#if defined(__ARM_ARCH_7EM__)
const audio_block_t *block;
audio_block_t *outblockL;
audio_block_t *outblockR;
int i;
int16_t input, bufout, outputL, outputR;
int32_t sum;
block = receiveReadOnly(0);
outblockL = allocate();
outblockR = allocate();
if (!outblockL || !outblockR) {
if (outblockL) release(outblockL);
if (outblockR) release(outblockR);
if (block) release((audio_block_t *)block);
return;
}
if (!block) block = &zeroblock;
for (i = 0; i < AUDIO_BLOCK_SAMPLES; i++) {
// TODO: scale numerical range depending on roomsize & damping
input = sat16(block->data[i] * 8738, 17); // for numerical headroom
sum = 0;
bufout = comb1bufL[comb1indexL];
sum += bufout;
comb1filterL = sat16(bufout * combdamp2 + comb1filterL * combdamp1, 15);
comb1bufL[comb1indexL] = sat16(input + sat16(comb1filterL * combfeeback, 15), 0);
if (++comb1indexL >= sizeof(comb1bufL) / sizeof(int16_t)) comb1indexL = 0;
bufout = comb2bufL[comb2indexL];
sum += bufout;
comb2filterL = sat16(bufout * combdamp2 + comb2filterL * combdamp1, 15);
comb2bufL[comb2indexL] = sat16(input + sat16(comb2filterL * combfeeback, 15), 0);
if (++comb2indexL >= sizeof(comb2bufL) / sizeof(int16_t)) comb2indexL = 0;
bufout = comb3bufL[comb3indexL];
sum += bufout;
comb3filterL = sat16(bufout * combdamp2 + comb3filterL * combdamp1, 15);
comb3bufL[comb3indexL] = sat16(input + sat16(comb3filterL * combfeeback, 15), 0);
if (++comb3indexL >= sizeof(comb3bufL) / sizeof(int16_t)) comb3indexL = 0;
bufout = comb4bufL[comb4indexL];
sum += bufout;
comb4filterL = sat16(bufout * combdamp2 + comb4filterL * combdamp1, 15);
comb4bufL[comb4indexL] = sat16(input + sat16(comb4filterL * combfeeback, 15), 0);
if (++comb4indexL >= sizeof(comb4bufL) / sizeof(int16_t)) comb4indexL = 0;
bufout = comb5bufL[comb5indexL];
sum += bufout;
comb5filterL = sat16(bufout * combdamp2 + comb5filterL * combdamp1, 15);
comb5bufL[comb5indexL] = sat16(input + sat16(comb5filterL * combfeeback, 15), 0);
if (++comb5indexL >= sizeof(comb5bufL) / sizeof(int16_t)) comb5indexL = 0;
bufout = comb6bufL[comb6indexL];
sum += bufout;
comb6filterL = sat16(bufout * combdamp2 + comb6filterL * combdamp1, 15);
comb6bufL[comb6indexL] = sat16(input + sat16(comb6filterL * combfeeback, 15), 0);
if (++comb6indexL >= sizeof(comb6bufL) / sizeof(int16_t)) comb6indexL = 0;
bufout = comb7bufL[comb7indexL];
sum += bufout;
comb7filterL = sat16(bufout * combdamp2 + comb7filterL * combdamp1, 15);
comb7bufL[comb7indexL] = sat16(input + sat16(comb7filterL * combfeeback, 15), 0);
if (++comb7indexL >= sizeof(comb7bufL) / sizeof(int16_t)) comb7indexL = 0;
bufout = comb8bufL[comb8indexL];
sum += bufout;
comb8filterL = sat16(bufout * combdamp2 + comb8filterL * combdamp1, 15);
comb8bufL[comb8indexL] = sat16(input + sat16(comb8filterL * combfeeback, 15), 0);
if (++comb8indexL >= sizeof(comb8bufL) / sizeof(int16_t)) comb8indexL = 0;
outputL = sat16(sum * 31457, 17);
sum = 0;
bufout = comb1bufR[comb1indexR];
sum += bufout;
comb1filterR = sat16(bufout * combdamp2 + comb1filterR * combdamp1, 15);
comb1bufR[comb1indexR] = sat16(input + sat16(comb1filterR * combfeeback, 15), 0);
if (++comb1indexR >= sizeof(comb1bufR) / sizeof(int16_t)) comb1indexR = 0;
bufout = comb2bufR[comb2indexR];
sum += bufout;
comb2filterR = sat16(bufout * combdamp2 + comb2filterR * combdamp1, 15);
comb2bufR[comb2indexR] = sat16(input + sat16(comb2filterR * combfeeback, 15), 0);
if (++comb2indexR >= sizeof(comb2bufR) / sizeof(int16_t)) comb2indexR = 0;
bufout = comb3bufR[comb3indexR];
sum += bufout;
comb3filterR = sat16(bufout * combdamp2 + comb3filterR * combdamp1, 15);
comb3bufR[comb3indexR] = sat16(input + sat16(comb3filterR * combfeeback, 15), 0);
if (++comb3indexR >= sizeof(comb3bufR) / sizeof(int16_t)) comb3indexR = 0;
bufout = comb4bufR[comb4indexR];
sum += bufout;
comb4filterR = sat16(bufout * combdamp2 + comb4filterR * combdamp1, 15);
comb4bufR[comb4indexR] = sat16(input + sat16(comb4filterR * combfeeback, 15), 0);
if (++comb4indexR >= sizeof(comb4bufR) / sizeof(int16_t)) comb4indexR = 0;
bufout = comb5bufR[comb5indexR];
sum += bufout;
comb5filterR = sat16(bufout * combdamp2 + comb5filterR * combdamp1, 15);
comb5bufR[comb5indexR] = sat16(input + sat16(comb5filterR * combfeeback, 15), 0);
if (++comb5indexR >= sizeof(comb5bufR) / sizeof(int16_t)) comb5indexR = 0;
bufout = comb6bufR[comb6indexR];
sum += bufout;
comb6filterR = sat16(bufout * combdamp2 + comb6filterR * combdamp1, 15);
comb6bufR[comb6indexR] = sat16(input + sat16(comb6filterR * combfeeback, 15), 0);
if (++comb6indexR >= sizeof(comb6bufR) / sizeof(int16_t)) comb6indexR = 0;
bufout = comb7bufR[comb7indexR];
sum += bufout;
comb7filterR = sat16(bufout * combdamp2 + comb7filterR * combdamp1, 15);
comb7bufR[comb7indexR] = sat16(input + sat16(comb7filterR * combfeeback, 15), 0);
if (++comb7indexR >= sizeof(comb7bufR) / sizeof(int16_t)) comb7indexR = 0;
bufout = comb8bufR[comb8indexR];
sum += bufout;
comb8filterR = sat16(bufout * combdamp2 + comb8filterR * combdamp1, 15);
comb8bufR[comb8indexR] = sat16(input + sat16(comb8filterR * combfeeback, 15), 0);
if (++comb8indexR >= sizeof(comb8bufR) / sizeof(int16_t)) comb8indexR = 0;
outputR = sat16(sum * 31457, 17);
bufout = allpass1bufL[allpass1indexL];
allpass1bufL[allpass1indexL] = outputL + (bufout >> 1);
outputL = sat16(bufout - outputL, 1);
if (++allpass1indexL >= sizeof(allpass1bufL) / sizeof(int16_t)) allpass1indexL = 0;
bufout = allpass2bufL[allpass2indexL];
allpass2bufL[allpass2indexL] = outputL + (bufout >> 1);
outputL = sat16(bufout - outputL, 1);
if (++allpass2indexL >= sizeof(allpass2bufL) / sizeof(int16_t)) allpass2indexL = 0;
bufout = allpass3bufL[allpass3indexL];
allpass3bufL[allpass3indexL] = outputL + (bufout >> 1);
outputL = sat16(bufout - outputL, 1);
if (++allpass3indexL >= sizeof(allpass3bufL) / sizeof(int16_t)) allpass3indexL = 0;
bufout = allpass4bufL[allpass4indexL];
allpass4bufL[allpass4indexL] = outputL + (bufout >> 1);
outputL = sat16(bufout - outputL, 1);
if (++allpass4indexL >= sizeof(allpass4bufL) / sizeof(int16_t)) allpass4indexL = 0;
outblockL->data[i] = sat16(outputL * 30, 0);
bufout = allpass1bufR[allpass1indexR];
allpass1bufR[allpass1indexR] = outputR + (bufout >> 1);
outputR = sat16(bufout - outputR, 1);
if (++allpass1indexR >= sizeof(allpass1bufR) / sizeof(int16_t)) allpass1indexR = 0;
bufout = allpass2bufR[allpass2indexR];
allpass2bufR[allpass2indexR] = outputR + (bufout >> 1);
outputR = sat16(bufout - outputR, 1);
if (++allpass2indexR >= sizeof(allpass2bufR) / sizeof(int16_t)) allpass2indexR = 0;
bufout = allpass3bufR[allpass3indexR];
allpass3bufR[allpass3indexR] = outputR + (bufout >> 1);
outputR = sat16(bufout - outputR, 1);
if (++allpass3indexR >= sizeof(allpass3bufR) / sizeof(int16_t)) allpass3indexR = 0;
bufout = allpass4bufR[allpass4indexR];
allpass4bufR[allpass4indexR] = outputR + (bufout >> 1);
outputR = sat16(bufout - outputR, 1);
if (++allpass4indexR >= sizeof(allpass4bufR) / sizeof(int16_t)) allpass4indexR = 0;
outblockR->data[i] = sat16(outputL * 30, 0);
}
transmit(outblockL, 0);
transmit(outblockR, 1);
release(outblockL);
release(outblockR);
if (block != &zeroblock) release((audio_block_t *)block);
#elif defined(KINETISL)
audio_block_t *block;
block = receiveReadOnly(0);
if (block) release(block);
#endif
}

184
effect_freeverb_simd.h
Unescape View File

@ -0,0 +1,184 @@
/* Audio Library for Teensy 3.X
Copyright (c) 2018, Paul Stoffregen, paul@pjrc.com
Development of this audio library was funded by PJRC.COM, LLC by sales of
Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
open source software by purchasing Teensy or other PJRC products.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice, development funding notice, and this permission
notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef effect_freeverb_simd_h_
#define effect_freeverb_simd_h_
#include <Arduino.h>
#include "AudioStream.h"
class AudioEffectFreeverbSIMD : public AudioStream
{
public:
AudioEffectFreeverbSIMD();
virtual void update();
void roomsize(float n) {
if (n > 1.0f) n = 1.0f;
else if (n < 0.0f) n = 0.0f;
combfeeback = (int)(n * 9175.04f) + 22937;
}
void damping(float n) {
if (n > 1.0f) n = 1.0f;
else if (n < 0.0f) n = 0.0f;
int x1 = (int)(n * 13107.2f);
int x2 = 32768 - x1;
__disable_irq();
combdamp1 = x1;
combdamp2 = x2;
__enable_irq();
}
private:
audio_block_t *inputQueueArray[1];
int16_t comb1buf[1116];
int16_t comb2buf[1188];
int16_t comb3buf[1277];
int16_t comb4buf[1356];
int16_t comb5buf[1422];
int16_t comb6buf[1491];
int16_t comb7buf[1557];
int16_t comb8buf[1617];
uint16_t comb1index;
uint16_t comb2index;
uint16_t comb3index;
uint16_t comb4index;
uint16_t comb5index;
uint16_t comb6index;
uint16_t comb7index;
uint16_t comb8index;
int16_t comb1filter;
int16_t comb2filter;
int16_t comb3filter;
int16_t comb4filter;
int16_t comb5filter;
int16_t comb6filter;
int16_t comb7filter;
int16_t comb8filter;
int16_t combdamp1;
int16_t combdamp2;
int16_t combfeeback;
int16_t allpass1buf[556];
int16_t allpass2buf[441];
int16_t allpass3buf[341];
int16_t allpass4buf[225];
uint16_t allpass1index;
uint16_t allpass2index;
uint16_t allpass3index;
uint16_t allpass4index;
};
class AudioEffectFreeverbSIMDStereo : public AudioStream
{
public:
AudioEffectFreeverbSIMDStereo();
virtual void update();
void roomsize(float n) {
if (n > 1.0f) n = 1.0f;
else if (n < 0.0f) n = 0.0f;
combfeeback = (int)(n * 9175.04f) + 22937;
}
void damping(float n) {
if (n > 1.0f) n = 1.0f;
else if (n < 0.0f) n = 0.0f;
int x1 = (int)(n * 13107.2f);
int x2 = 32768 - x1;
__disable_irq();
combdamp1 = x1;
combdamp2 = x2;
__enable_irq();
}
private:
audio_block_t *inputQueueArray[1];
int16_t comb1bufL[1116];
int16_t comb2bufL[1188];
int16_t comb3bufL[1277];
int16_t comb4bufL[1356];
int16_t comb5bufL[1422];
int16_t comb6bufL[1491];
int16_t comb7bufL[1557];
int16_t comb8bufL[1617];
uint16_t comb1indexL;
uint16_t comb2indexL;
uint16_t comb3indexL;
uint16_t comb4indexL;
uint16_t comb5indexL;
uint16_t comb6indexL;
uint16_t comb7indexL;
uint16_t comb8indexL;
int16_t comb1filterL;
int16_t comb2filterL;
int16_t comb3filterL;
int16_t comb4filterL;
int16_t comb5filterL;
int16_t comb6filterL;
int16_t comb7filterL;
int16_t comb8filterL;
int16_t comb1bufR[1139];
int16_t comb2bufR[1211];
int16_t comb3bufR[1300];
int16_t comb4bufR[1379];
int16_t comb5bufR[1445];
int16_t comb6bufR[1514];
int16_t comb7bufR[1580];
int16_t comb8bufR[1640];
uint16_t comb1indexR;
uint16_t comb2indexR;
uint16_t comb3indexR;
uint16_t comb4indexR;
uint16_t comb5indexR;
uint16_t comb6indexR;
uint16_t comb7indexR;
uint16_t comb8indexR;
int16_t comb1filterR;
int16_t comb2filterR;
int16_t comb3filterR;
int16_t comb4filterR;
int16_t comb5filterR;
int16_t comb6filterR;
int16_t comb7filterR;
int16_t comb8filterR;
int16_t combdamp1;
int16_t combdamp2;
int16_t combfeeback;
int16_t allpass1bufL[556];
int16_t allpass2bufL[441];
int16_t allpass3bufL[341];
int16_t allpass4bufL[225];
uint16_t allpass1indexL;
uint16_t allpass2indexL;
uint16_t allpass3indexL;
uint16_t allpass4indexL;
int16_t allpass1bufR[579];
int16_t allpass2bufR[464];
int16_t allpass3bufR[364];
int16_t allpass4bufR[248];
uint16_t allpass1indexR;
uint16_t allpass2indexR;
uint16_t allpass3indexR;
uint16_t allpass4indexR;
};
#endif
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