# I can't make sound effect on processing (Quiz)
**URL:** https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848
**Category:** Coding Questions
**Tags:** homework
**Created:** [March 25, 2021, 9:11pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848 "2021-03-25T21:11:18Z")
**Posts on this page:** 17
**Page:** 1
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 9:11pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/1 "2021-03-25T21:11:18Z")
I want to make a function for.
if I click the correct answer, that will make a sound
I tried it, but it isn’t working
I don’t know what is wrong… can anybody help me?
import processing.sound.\*;
SoundFile file;
String[] Texts = {
“Question A”,
“Question B”,
“Question C”,
“Question D”,
“Question E”,
“Question F”,
“Question G”
};
String[] RightAnswer = {
“Yes”,
“No”,
“Yes”,
“No”,
“No”,
“Yes”,
“No”
};
int n = int (random(0, 6));
//String myText;
int totalWrong = 0;
int totalCorrect = 0;
//int question = 0;
//String correctAnswer;
//String WrongAnswer;
//int True= 0;
//int False= 0;
void setup() {
size(800, 400);
background(255);
smooth();
ellipseMode(CENTER);
file = new SoundFile(this, “bell.wav”);
file.play();
}
void draw() {
// draw() runs 60 times per second again and again
// we clear the screen to WHITE
background(255);
// we show stuff
noStroke();
//Button 1
fill(255, 20, 40);
if (button1())
fill(0, 255, 0);
ellipse(320, 100, 20, 20);
text(“YES”, 320+22, 100);
//Button 2
fill(255, 20, 40);
if (button2())
fill(0, 255, 0);
ellipse(420, 100, 20, 20);
text(“NO”, 420+22, 100);
fill(0);
rect(width/2, height/2, 300, 100);
textSize(20);
text(Texts[n], 10, 30);
text(RightAnswer[n], 10, 30+22); // for testing what happens!!!
fill(255);
fill(0);
text("", 0, 300, 800, 700);
//text(question, 20, 80);
text("Correct? ", 20+110+55, 80+30);
text(“Correct:”, 600, 40);
text(totalCorrect, 620, 80);
text(“Incorrect:”, 600, 140);
text(totalWrong, 620, 180);
}
void mousePressed() {
// CHECK Buttons
if (button1()) {
// button 1: Yes
println(“button1”);
if (RightAnswer[n].equals(“Yes”)) {
totalCorrect++;
} else {
totalWrong++;
}
goOn();
} else if (button2()) {
// button 2: No
println(“button2”);
if (RightAnswer[n].equals(“No”)) {
totalCorrect++;
} else {
totalWrong++;
}
goOn();
}//else if
}
void goOn() {
n = int (random(0, 6));
}
boolean button1() {
return
dist(mouseX, mouseY, 320, 100) \< 70;
}
boolean button2() {
return
dist(mouseX, mouseY, 480, 100) \< 70;
}
//
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:23pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/2 "2021-03-25T21:23:51Z")
> [@Ellen](#):
>
> file.play();
this line: can you hear the sound when the program starts??
this line belongs in the place in the code where the program detects that **a correct answer has been given**.
Do you know where this is? There are 2 places obviously.
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:39pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/3 "2021-03-25T21:39:05Z")
you cannot expect that processing executes the sound play command at the right time when you place it at the beginning - instead remember that processing executes your Sketch line by line,
- starting before setup(),
- doing setup() once and
- then draw() again and again.
- When the mouse is pressed the function mousePressed gets executed.
So the play command must be in the section of the code where the correct answer has been given.
**By the way** , the text() command for the buttons uses Yes and No, maybe True and False is better
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 9:41pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/4 "2021-03-25T21:41:39Z")
> [@Ellen](#):
>
> play
if (RightAnswer[n].equals(“Yes”)) {
and
void goOn() {
I think??
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:43pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/5 "2021-03-25T21:43:50Z")
In my understanding:
```auto
if (RightAnswer[n].equals(“Yes”)) {
totalCorrect++;
```
AND
```auto
if (RightAnswer[n].equals(“No”)) {
totalCorrect++;
```
(because for some sentences TRUE is the correct answer, for others FALSE is the correct answer)
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:52pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/6 "2021-03-25T21:52:46Z")
> [@Ellen](#):
>
> void goOn() {
this is called also when the question was answered in a wrong way
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 9:54pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/7 "2021-03-25T21:54:00Z")
```auto
void mousePressed() {
// CHECK Buttons
if (button1()) {
// button 1: Yes
println("button1");
if (RightAnswer[n].equals("Yes")) {
totalCorrect++; file.play();
} else {
totalWrong++;
}
goOn();
} else if (button2()) {
// button 2: No
println("button2");
if (RightAnswer[n].equals("No")) {
totalCorrect++; file.play();
} else {
totalWrong++;
}
goOn();
```
not like this?
Sorry I’m so confused
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:54pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/8 "2021-03-25T21:54:57Z")
**That’s perfect!**
Does it work?
Does it do what you want?
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 9:57pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/9 "2021-03-25T21:57:07Z")
> [@Ellen](#):
>
> ```auto
> void mousePressed() {
> // CHECK Buttons
> if (button1()) {
> // button 1: Yes
> println("button1");
> if (RightAnswer[n].equals("Yes")) {
> totalCorrect++; file.play();
> } else {
> totalWrong++;
> }
> goOn();
> } else if (button2()) {
> // button 2: No
> println("button2");
> if (RightAnswer[n].equals("No")) {
> totalCorrect++; file.play();
> } else {
> totalWrong++;
> }
> goOn();
>
> ```
No, It doesn’t.
```auto
import processing.sound.*;
SoundFile file;
void setup() {
size(800, 400);
background(255);
smooth();
ellipseMode(CENTER);
file = new SoundFile(this, "s.wav");
}
```
I think those are not working In that part
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 9:59pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/10 "2021-03-25T21:59:16Z")
Do you receive an error message like **file not found**?
**Question**
```auto
void mousePressed() {
file.play();
// CHECK Buttons
```
Does this work when you click mouse, do you hear a sound?
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 10:00pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/11 "2021-03-25T22:00:28Z")
> [@Chrisir](#):
>
> `file.play(); `
that continue to show
“No library found for processing.sound
Libraries must be installed in a folder named ‘libraries’ inside the sketchbook folder (see the Preferences window).
The package “processing.sound” does not exist. You might be missing a library.”
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 10:01pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/12 "2021-03-25T22:01:59Z")
Oh my god, I think I got it
shoud I download the library, right???
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 10:03pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/13 "2021-03-25T22:03:24Z")
yes, you have to download / install
there is a **Manager** in processing
Menu Sketch | Import Library | Add library…
search sound, select and install
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 25, 2021, 10:07pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/14 "2021-03-25T22:07:42Z")
> [@Ellen](#):
>
> ` totalCorrect++; file.play();`
Remember to hit **Ctrl-t** in processing to get auto-format
Then I think this line becomes two lines :
```auto
totalCorrect++;
file.play();
```
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 10:08pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/15 "2021-03-25T22:08:27Z")
YES It works!!!
Thank you so so so much!
---
### Author:  [@Ellen](https://discourse.processing.org/u/Ellen)
#### Post date: [March 25, 2021, 10:51pm UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/16 "2021-03-25T22:51:09Z")
Hi Chrisir!
Can I ask one more thing?
I wanna add a sound for random quiz,
```auto
if (Texts == [1]){
sound1.play();
}
```
Is it wrong?
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [March 26, 2021, 9:15am UTC](https://discourse.processing.org/t/i-cant-make-sound-effect-on-processing-quiz/28848/17 "2021-03-26T09:15:20Z")
> [@Ellen](#):
>
> add a sound for random quiz
Excuse me, do you mean when a new question is started?
What do you mean by random quiz?
a new question is started in function goOn(). There you should have `sound1.play();`. Maybe it’s tricky when the other sound (from the correct answer) is still playing?