jorgeart17
New member
Hello
I'm working on a simple equalizer sketch, using the chamberling filter and 2 biquad filters, and 3 amps... I'm using the "Audio System Design Tool" for "Teensy Audio Library" to make the conections betwen the components, as shown below
My problem is that the object "AudioAmplifier" does not exist on my audio libraries, I found the audio.h library on this link https://github.com/PaulStoffregen/Audio/blob/master/Audio.h and there is no "AudioAmplifier" included,
where can I find this library or object? Is an actualization that I did not found, or it does not exist yet? I imagine that is easy to write this object library but I am new on arduino and I can't do this.
PD: sorry for my english, my mother language is spanish. And I don't know why the wires doesn't appear on the "audio system design tool"
And this is the code, I'm using a example audio sketch.
The error is:
I'm working on a simple equalizer sketch, using the chamberling filter and 2 biquad filters, and 3 amps... I'm using the "Audio System Design Tool" for "Teensy Audio Library" to make the conections betwen the components, as shown below
My problem is that the object "AudioAmplifier" does not exist on my audio libraries, I found the audio.h library on this link https://github.com/PaulStoffregen/Audio/blob/master/Audio.h and there is no "AudioAmplifier" included,
where can I find this library or object? Is an actualization that I did not found, or it does not exist yet? I imagine that is easy to write this object library but I am new on arduino and I can't do this.
PD: sorry for my english, my mother language is spanish. And I don't know why the wires doesn't appear on the "audio system design tool"
And this is the code, I'm using a example audio sketch.
Code:
// Advanced Microcontroller-based Audio Workshop
//
// http://www.pjrc.com/store/audio_tutorial_kit.html
// https://hackaday.io/project/8292-microcontroller-audio-workshop-had-supercon-2015
//
// Part 2-7: Filters
#include <Bounce.h>
///////////////////////////////////
// copy the Design Tool code here
///////////////////////////////////
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
// GUItool: begin automatically generated code
AudioInputI2S i2s1; //xy=62,114
AudioMixer4 mixer1; //xy=205,127
AudioFilterStateVariable filter1; //xy=359,72
AudioFilterBiquad biquad2; //xy=360,173
AudioFilterBiquad biquad1; //xy=361,127
AudioAmplifier amp3; //xy=498,59
AudioAmplifier amp2; //xy=498,173
AudioAmplifier amp1; //xy=499,127
AudioMixer4 mixer2; //xy=652,133
AudioOutputI2S i2s2; //xy=792,135
AudioConnection patchCord1(i2s1, 0, mixer1, 0);
AudioConnection patchCord2(i2s1, 1, mixer1, 1);
AudioConnection patchCord3(mixer1, 0, filter1, 0);
AudioConnection patchCord4(mixer1, biquad1);
AudioConnection patchCord5(mixer1, biquad2);
AudioConnection patchCord6(filter1, 0, amp3, 0);
AudioConnection patchCord7(biquad2, amp2);
AudioConnection patchCord8(biquad1, amp1);
AudioConnection patchCord9(amp3, 0, mixer2, 0);
AudioConnection patchCord10(amp2, 0, mixer2, 2);
AudioConnection patchCord11(amp1, 0, mixer2, 1);
AudioConnection patchCord12(mixer2, 0, i2s2, 0);
AudioConnection patchCord13(mixer2, 0, i2s2, 1);
AudioControlSGTL5000 sgtl5000_1; //xy=444,264
// GUItool: end automatically generated code
// Use these with the Teensy Audio Shield
#define SDCARD_CS_PIN 10
#define SDCARD_MOSI_PIN 7
#define SDCARD_SCK_PIN 14
// Use these with the Teensy 3.5 & 3.6 SD card
//#define SDCARD_CS_PIN BUILTIN_SDCARD
//#define SDCARD_MOSI_PIN 11 // not actually used
//#define SDCARD_SCK_PIN 13 // not actually used
// Use these for the SD+Wiz820 or other adaptors
//#define SDCARD_CS_PIN 4
//#define SDCARD_MOSI_PIN 11
//#define SDCARD_SCK_PIN 13
int freq1 = 330;
float q1 = 0.707;
int freq2 = 1044;
float q2 = 1044/2970;
int freq3 = 3300;
int a1history=0, a2history=0, a3history=0;
void setup() {
Serial.begin(9600);
AudioMemory(12);
sgtl5000_1.enable();
sgtl5000_1.volume(0.5);
SPI.setMOSI(SDCARD_MOSI_PIN);
SPI.setSCK(SDCARD_SCK_PIN);
if (!(SD.begin(SDCARD_CS_PIN))) {
while (1) {
Serial.println("Unable to access the SD card");
delay(500);
}
}
delay(1000);
filter1.frequency(freq1);
filter1.resonance(q1);
biquad1.setBandpass(0,freq2,q2);
biquad2.setHighpass(0,freq3,q1);
a1history = analogRead(A14);
a2history = analogRead(A15);
a3history = analogRead(A16);
}
void loop() {
int a1 = analogRead(A14); //0 - 1023 analog read
int a2 = analogRead(A15);
int a3 = analogRead(A16);
if (a1 > a1history + 10 || a1 < a1history - 10) {
Serial.print("Ganancia a1 =");
Serial.println(a1);
a1history = a1;
float gain1 = (float)a1 / 1024;
amp3.gain(gain1);
}
if (a2 > a2history + 10 || a2 < a2history - 10) {
Serial.print("Ganancia a2 =");
Serial.println(a2);
a2history = a2;
float gain2 = (float)a2 / 1024;
amp1.gain(gain2);
}
if (a1 > a3history + 10 || a3 < a3history - 10) {
Serial.print("Ganancia a3 =");
Serial.println(a3);
a1history = a3;
float gain3 = (float)a3 / 1024;
amp2.gain(gain3);
}
}
The error is:
Code:
Arduino:1.8.5 (Windows 10), TD: 1.41, Tarjeta:"Teensy 3.6, Serial, 180 MHz, Faster, US English"
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:27:1: error: 'AudioAmplifier' does not name a type
AudioAmplifier amp3; //xy=498,59
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:28:1: error: 'AudioAmplifier' does not name a type
AudioAmplifier amp2; //xy=498,173
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:29:1: error: 'AudioAmplifier' does not name a type
AudioAmplifier amp1; //xy=499,127
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:37:49: error: 'amp3' was not declared in this scope
AudioConnection patchCord6(filter1, 0, amp3, 0);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:38:46: error: 'amp2' was not declared in this scope
AudioConnection patchCord7(biquad2, amp2);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:39:46: error: 'amp1' was not declared in this scope
AudioConnection patchCord8(biquad1, amp1);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:40:37: error: 'amp3' was not declared in this scope
AudioConnection patchCord9(amp3, 0, mixer2, 0);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:41:38: error: 'amp2' was not declared in this scope
AudioConnection patchCord10(amp2, 0, mixer2, 2);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:42:38: error: 'amp1' was not declared in this scope
AudioConnection patchCord11(amp1, 0, mixer2, 1);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino: In function 'void loop()':
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:108:5: error: 'amp3' was not declared in this scope
amp3.gain(gain1);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:115:5: error: 'amp1' was not declared in this scope
amp1.gain(gain2);
^
C:\Users\jorge\Dropbox\IE0499 - Proyecto\Pruebas 1.2\6-Ecualizador_con_chamberlin\6-Ecualizador_con_chamberlin.ino:122:5: error: 'amp2' was not declared in this scope
amp2.gain(gain3);
^
Se encontraron múltiples librerías para "SD.h"
Usado: C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\SD
No usado: C:\Program Files (x86)\Arduino\libraries\SD
Error compilando para la tarjeta Teensy 3.6.
Este reporte podría tener más información con
"Mostrar salida detallada durante la compilación"
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