how to fix this error?

gracea...@gmail.com

unread,

Dec 22, 2017, 9:44:03 PM12/22/17

to Mozzi-users

Hi! I'm new to arduino and I'm trying to make the synth from this: http://www.instructables.com/id/Using-Mozzi-Library-with-5-potentiometers/

I know I have to relocate folders maybe? and I've tried a bunch of stuff and did a lot of research but can't get anything to work. If anything could help me out I'd greatly appreciate it!

my error message:

Arduino: 1.8.3 (Mac OS X), Board: "Arduino/Genuino Uno"

WARNING: Category '' in library Mozzi is not valid. Setting to 'Uncategorized'

In file included from /var/folders/d0/j7pjgj7s3x17kpbwh6vvv_br0000gn/T/arduino_modified_sketch_897980/synth.ino:36:0:

/Users/myname/Documents/Arduino/libraries/Mozzi/MozziGuts.h:150:2: warning: #warning "AUDIO_MODE is set to STANDARD_PLUS in mozzi_config.h. If things sound wrong, check if STANDARD_PLUS is the correct AUDIO_MODE for your sketch." [-Wcpp]

#warning "AUDIO_MODE is set to STANDARD_PLUS in mozzi_config.h. If things sound wrong, check if STANDARD_PLUS is the correct AUDIO_MODE for your sketch."

^

/var/folders/d0/j7pjgj7s3x17kpbwh6vvv_br0000gn/T/arduino_modified_sketch_897980/synth.ino: In function 'void updateControl()':

synth:117: error: expected ';' before 'int'

int LDR1_value= mozziAnalogRead(LDR1_PIN); // value is 0-1023

^

synth:120: error: 'LDR1_value' was not declared in this scope

Serial.print(LDR1_value);

^

exit status 1

expected ';' before 'int'

Invalid library found in /Users/myname/Documents/Arduino/libraries/Keypad: /Users/myname/Documents/Arduino/libraries/Keypad

Invalid version found: version 2013-07-07-17:51

Invalid library found in /Users/myname/Documents/Arduino/libraries/Keypad: /Users/myname/Documents/Arduino/libraries/Keypad

Invalid version found: version 2013-07-07-17:51

This report would have more information with

"Show verbose output during compilation"

option enabled in File -> Preferences.

the code im using:

/*

Example using 2 light dependent resistors (LDRs) to change

FM synthesis parameters, and a knob for fundamental frequency,

using Mozzi sonification library.

Demonstrates analog input, audio and control oscillators, phase modulation

and smoothing a control signal at audio rate to avoid clicks.

Also demonstrates AutoMap, which maps unpredictable inputs to a set range.

This example goes with a tutorial on the Mozzi site:

http://sensorium.github.io/Mozzi/learn/Mozzi_Introductory_Tutorial.pdf

The circuit:

Audio output on digital pin 9 (on a Uno or similar), or

check the README or http://sensorium.github.com/Mozzi/

Potentiometer connected to analog pin 0.

Center pin of the potentiometer goes to the analog pin.

Side pins of the potentiometer go to +5V and ground

Light dependent resistor (LDR) and 5.1k resistor on analog pin 1:

LDR from analog pin to +5V

5.1k resistor from analog pin to ground

Light dependent resistor (LDR) and 5.1k resistor on analog pin 2:

LDR from analog pin to +5V

5.1k resistor from analog pin to ground

Mozzi help/discussion/announcements:

https://groups.google.com/forum/#!forum/mozzi-users

Tim Barrass 2013.

This example code is in the public domain.

*/

#include <MozziGuts.h>

#include <Oscil.h> // oscillator

#include <tables/cos2048_int8.h> // table for Oscils to play

#include <Smooth.h>

#include <AutoMap.h> // maps unpredictable inputs to a range

// int freqVal;

// desired carrier frequency max and min, for AutoMap

const int MIN_CARRIER_FREQ = 22;

const int MAX_CARRIER_FREQ = 440;

const int MIN = 1;

const int MAX = 10;

const int MIN_2 = 1;

const int MAX_2 = 15;

// desired intensity max and min, for AutoMap, note they're inverted for reverse dynamics

const int MIN_INTENSITY = 700;

const int MAX_INTENSITY = 10;

// desired mod speed max and min, for AutoMap, note they're inverted for reverse dynamics

const int MIN_MOD_SPEED = 10000;

const int MAX_MOD_SPEED = 1;

AutoMap kMapCarrierFreq(0,1023,MIN_CARRIER_FREQ,MAX_CARRIER_FREQ);

AutoMap kMapIntensity(0,1023,MIN_INTENSITY,MAX_INTENSITY);

AutoMap kMapModSpeed(0,1023,MIN_MOD_SPEED,MAX_MOD_SPEED);

AutoMap mapThis(0,1023,MIN,MAX);

AutoMap mapThisToo(0,1023,MIN_2,MAX_2);

const int KNOB_PIN = 0; // set the input for the knob to analog pin 0

const int LDR1_PIN=1; // set the analog input for fm_intensity to pin 1

const int LDR2_PIN=2; // set the analog input for mod rate to pin 2

const int LDR3_PIN=4;

const int LDR4_PIN=3;

Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCarrier(COS2048_DATA);

Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aModulator(COS2048_DATA);

Oscil<COS2048_NUM_CELLS, CONTROL_RATE> kIntensityMod(COS2048_DATA);

int mod_ratio = 5; // brightness (harmonics)

long fm_intensity; // carries control info from updateControl to updateAudio

// smoothing for intensity to remove clicks on transitions

float smoothness = 0.95f;

Smooth <long> aSmoothIntensity(smoothness);

void setup(){

Serial.begin(115200); // set up the Serial output so we can look at the light level

startMozzi(); // :))

}

void updateControl(){

// freqVal = map(LDR3_PIN, 0, 1023, 1, 100);

int freqVal = mozziAnalogRead(LDR3_PIN); // value is 0-1023

int FRQ = mapThis(freqVal);

int knob2 = mozziAnalogRead(LDR4_PIN); // value is 0-1023

int knob2Val = mapThis(knob2);

// read the knob

int knob_value = mozziAnalogRead(KNOB_PIN); // value is 0-1023

// map the knob to carrier frequency

int carrier_freq = kMapCarrierFreq(knob_value);

//calculate the modulation frequency to stay in ratio

int mod_freq = carrier_freq * mod_ratio * FRQ;

// set the FM oscillator frequencies

aCarrier.setFreq(carrier_freq);

aModulator.setFreq(mod_freq);

1

// read the light dependent resistor on the width Analog input pin

int LDR1_value= mozziAnalogRead(LDR1_PIN); // value is 0-1023

// print the value to the Serial monitor for debugging

Serial.print("LDR1 = ");

Serial.print(LDR1_value);

Serial.print("\t"); // prints a tab

int LDR1_calibrated = kMapIntensity(LDR1_value);

Serial.print("LDR1_calibrated = ");

Serial.print(LDR1_calibrated);

Serial.print("\t"); // prints a tab

// calculate the fm_intensity

fm_intensity = ((long)LDR1_calibrated * knob2Val * (kIntensityMod.next()+128))>>8; // shift back to range after 8 bit multiply

Serial.print("fm_intensity = ");

Serial.print(fm_intensity);

Serial.print("\t"); // prints a tab

// read the light dependent resistor on the speed Analog input pin

int LDR2_value= mozziAnalogRead(LDR2_PIN); // value is 0-1023

Serial.print("LDR2 = ");

Serial.print(LDR2_value);

Serial.print("\t"); // prints a tab

// use a float here for low frequencies

float mod_speed = (float)kMapModSpeed(LDR2_value)/1000;

Serial.print(" mod_speed = ");

Serial.print(mod_speed);

kIntensityMod.setFreq(mod_speed);

Serial.println(); // finally, print a carraige return for the next line of debugging info

}

int updateAudio(){

long modulation = aSmoothIntensity.next(fm_intensity) * aModulator.next();

return aCarrier.phMod(modulation);

}

void loop(){

audioHook();

}

Tim Barrass

unread,

Dec 26, 2017, 5:33:05 PM12/26/17

to 'Ian C.' via Mozzi-users

Hi Grace,

there is a stray "1" on a line, which is stopping the sketch from compiling:

it's here:

// set the FM oscillator frequencies

aCarrier.setFreq(carrier_freq);

aModulator.setFreq(mod_freq);

1

On 23 Dec 2017, at 11:44 am, gracea...@gmail.com wrote:

LDR1_value

gracea...@gmail.com

unread,

Dec 29, 2017, 12:40:18 AM12/29/17

to Mozzi-users

thanks so much for the help! I'm still getting this error :( :

WARNING: Category '' in library Mozzi is not valid. Setting to 'Uncategorized'

In file included from /var/folders/d0/j7pjgj7s3x17kpbwh6vvv_br0000gn/T/arduino_modified_sketch_759563/isthisthesynth.ino:36:0:

/Users/myname/Documents/Arduino/libraries/Mozzi/MozziGuts.h:150:2: warning: #warning "AUDIO_MODE is set to STANDARD_PLUS in mozzi_config.h. If things sound wrong, check if STANDARD_PLUS is the correct AUDIO_MODE for your sketch." [-Wcpp]

#warning "AUDIO_MODE is set to STANDARD_PLUS in mozzi_config.h. If things sound wrong, check if STANDARD_PLUS is the correct AUDIO_MODE for your sketch."

^

Sketch uses 8698 bytes (26%) of program storage space. Maximum is 32256 bytes.

Global variables use 968 bytes (47%) of dynamic memory, leaving 1080 bytes for local variables. Maximum is 2048 bytes.