Linking Volume to Serial Input

Contributed Library Questions

talamantez

Linking Volume to Serial Input

in Contributed Library Questions • 2 years ago

Hi. I would like to use serial input data to control the volume of a song. Any help is helpful.

Replies(6)

cedrickie..

Re: Linking Volume to Serial Input

2 years ago

like mentioned in some other threads lately.
Where exactly is the problem? Do you have a serial connection? what kind of serial data are you talking about? where do you get it from. you should start here : http://www.processing.org/reference/libraries/serial/index.html

Or is the sound part the problem. you can play sounds using the minim library. there are also examples that shows you how to change the volume...

talamantez

Re: Re: Linking Volume to Serial Input

2 years ago

yeah the sound part is the problem - couldn't find a way to manipulate the volume - i'll check out the minim library again - ty

cedrickie..

Re: Linking Volume to Serial Input

2 years ago

i read some posts about people having problem changing the volume using minim.
maybe switch to Sonia instead.
http://sonia.pitaru.com/

here is the setVolume example :
http://sonia.pitaru.com/reference/Sample_setVolume_.html

talamantez

Re: Re: Linking Volume to Serial Input

2 years ago

thanks, I'll give sonia a shot - I'll post the code when I get it to work - or if I get errors.

talamantez

Re: Linking Volume to Serial Input

2 years ago

Got it to work: this turned the serial input into my computer (the potentiometer on the Arduino) into a volume control. Since the numbers come in from 0-255, I needed to divide the inByte by 25 or so. Thanks for your help.

import pitaru.sonia_v2_9.*;

import processing.serial.*;

Serial myPort;

int val;

int current = 0;

int last = 0;

Sample mySample;

void setup() {

Sonia.start(this);

mySample = new Sample("satisfied.wav");

mySample.play();

mySample.setVolume(.2) ;

mySample.repeat();

size(400,300); //window size

//list all the available serial ports

println(Serial.list());

myPort = new Serial(this, "COM3", 9600);

}

void draw () {}

void serialEvent (Serial myPort) {

// get the byte:

int inByte = myPort.read();

// print it:

println(inByte);

mySample.setVolume(inByte/25) ;

}

talamantez

Re: Linking Volume to Serial Input

2 years ago

This one is fun too - the serial is the the vol control and the scale tool for the cube - cube far away-quiet, cube close-loud

import pitaru.sonia_v2_9.*;

import processing.serial.*;

Serial myPort;

int val;

int current = 0;

int last = 0;

Sample mySample;

float xmag, ymag = 0;

float newXmag, newYmag = 0;

void setup() {

Sonia.start(this);

mySample = new Sample("satisfied.wav");

mySample.play();

mySample.setVolume(.2) ;

mySample.repeat();

size(640, 360, P3D);

noStroke();

colorMode(RGB, 1); //window size

//list all the available serial ports

println(Serial.list());

myPort = new Serial(this, "COM3", 9600);

background(150,200,5);

}

void draw () {}

void serialEvent (Serial myPort) {

// get the byte:

int inByte = myPort.read();

// print it:

println(inByte);

mySample.setVolume(inByte/10) ;

ellipse(inByte,inByte^2,inByte^2, inByte);

background(0.5);

pushMatrix();

translate(width/2, height/2, -30);

newXmag = mouseX/float(width) * TWO_PI;

newYmag = mouseY/float(height) * TWO_PI;

float diff = xmag-newXmag;

if (abs(diff) > 0.01) { xmag -= diff/4.0; }

diff = ymag-newYmag;

if (abs(diff) > 0.01) { ymag -= diff/4.0; }

rotateX(-ymag);

rotateY(-xmag);

scale(inByte);

beginShape(QUADS);

fill(0, 1, 1); vertex(-1, 1, 1);

fill(1, 1, 1); vertex( 1, 1, 1);

fill(1, 0, 1); vertex( 1, -1, 1);

fill(0, 0, 1); vertex(-1, -1, 1);

fill(1, 1, 1); vertex( 1, 1, 1);

fill(1, 1, 0); vertex( 1, 1, -1);

fill(1, 0, 0); vertex( 1, -1, -1);

fill(1, 0, 1); vertex( 1, -1, 1);

fill(1, 1, 0); vertex( 1, 1, -1);

fill(0, 1, 0); vertex(-1, 1, -1);

fill(0, 0, 0); vertex(-1, -1, -1);

fill(1, 0, 0); vertex( 1, -1, -1);

fill(0, 1, 0); vertex(-1, 1, -1);

fill(0, 1, 1); vertex(-1, 1, 1);

fill(0, 0, 1); vertex(-1, -1, 1);

fill(0, 0, 0); vertex(-1, -1, -1);

fill(0, 1, 0); vertex(-1, 1, -1);

fill(1, 1, 0); vertex( 1, 1, -1);

fill(1, 1, 1); vertex( 1, 1, 1);

fill(0, 1, 1); vertex(-1, 1, 1);

fill(0, 0, 0); vertex(-1, -1, -1);

fill(1, 0, 0); vertex( 1, -1, -1);

fill(1, 0, 1); vertex( 1, -1, 1);

fill(0, 0, 1); vertex(-1, -1, 1);

endShape();

popMatrix();

}

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