Getting a song to play with the help of minim - Processing Forum

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wavezy

Getting a song to play with the help of minim

in Core Library Questions • 11 months ago

Okay so I have minim and the song (named song.mp3) both in the data file of this sketch, yet when I run it the window pops up but the song doesn't play, and I get this message:

==== JavaSound Minim Error ====

==== Don't know the ID3 code TXXX

==== JavaSound Minim Error ====

==== Don't know the ID3 code TXXX

==== JavaSound Minim Error ====

==== Don't know the ID3 code TXXX

==== JavaSound Minim Error ====

==== Don't know the ID3 code TDEN

==== JavaSound Minim Error ====

==== Don't know the ID3 code TSSE

==== JavaSound Minim Error ====

==== Don't know the ID3 code APIC

I'm not sure if I'm doing something wrong or what's happening, but here's my full code, maybe the problem's in there? I'm super new to processing and I'm not sure. Any help would be appreciated :D.

import ddf.minim.*;

import ddf.minim.signals.*;

import ddf.minim.analysis.*;

import ddf.minim.effects.*;

Minim minim;

AudioPlayer player;

AudioInput input;

void setup()

{

size(100, 100);

minim = new Minim(this);

player = minim.loadFile("song.mp3");

input = minim.getLineIn();

}

void draw()

{

}

void stop()

{

player.close();

input.close();

minim.stop();

super.stop();

}

1

Replies(14)

Jesse Scott

Jesse Sco..

Re: Getting a song to play with the help of minim

11 months ago

Code looks fine... maybe there's something wrong with your file ???

PhiLho

PhiLho

Re: Getting a song to play with the help of minim

11 months ago

ID3 tags are the textual parts of a MP3 giving information like artist or title.
For some reason, Minim complains when it doesn't recognize a tag, but there are many custom tags.
These warning are harmless.
If they annoy you, just fire a tag editor (there are plenty free ones) and remove them.

wavezy

Re: Getting a song to play with the help of minim

11 months ago

I tried using another file but i got similar messages AND the song wouldn't play once again..

PhiLho

PhiLho

Re: Getting a song to play with the help of minim

11 months ago

Ah, I haven't looked at your code, actually.
I think you miss a player.play(); in setup(), after loading the file.

wavezy

Re: Getting a song to play with the help of minim

11 months ago

So this is my code now:

import ddf.minim.*;

import ddf.minim.signals.*;

import ddf.minim.analysis.*;

import ddf.minim.effects.*;

Minim minim;

AudioPlayer player;

AudioInput input;

void setup()

{

size(100, 100);

player.play();

minim = new Minim(this);

player = minim.loadFile("heys.mp3");

input = minim.getLineIn();

}

void draw()

{

}

void stop()

{player.play();

player.close();

input.close();

minim.stop();

super.stop();

}

and when I run it it highlights the player.play(); and says 'nullpointerexception'

o.o

Jesse Scott

Jesse Sco..

Re: Re: Getting a song to play with the help of minim

11 months ago

Well, don't put the play message in void stop() ...!!!!

that method get's called when you stop the app.

if you only tell your file to start playing when you are about to quit, that's not going to do you much good, now is it ?!?!

put in in setup()...

(good catch btw phiLho, missed that...)

wavezy

Re: Getting a song to play with the help of minim

11 months ago

Holy shit thank you so much for putting up with my lameness. You are all princes, thank you thank you.

renardg

Re: Getting a song to play with the help of minim

11 months ago

Hi, also facing the NullPointerException-problem . Tried code from different sources including the one above (w/o the play in stop, file names changed and files added). Exception at the first line with 'player' in setup, e.g. player.play(); in the same lineup as above . Processing 2.0b5 on Mac OSX 10.6.8. What is wrong?

PhiLho

PhiLho

Re: Getting a song to play with the help of minim

11 months ago

" What is wrong?"
The fact you don't show your code?

renardg

Re: Getting a song to play with the help of minim

11 months ago

e.g. this one:

import ddf.minim.*;

import ddf.minim.signals.*;

import ddf.minim.analysis.*;

import ddf.minim.effects.*;

Minim minim;

AudioPlayer player;

AudioInput input;

void setup()

{

size(100, 100);

player.play();

minim = new Minim(this);

player = minim.loadFile("heys.mp3");

input = minim.getLineIn();

}

void draw()

{

}

void stop()

{

player.close();

input.close();

minim.stop();

super.stop();

}

resulting in a NullPointerException with the following output:

java_home: unrecognized option `--request'

Exception in thread "Animation Thread" java.lang.NullPointerException

at minim_sound_test2.setup(minim_sound_test2.java:39)

at processing.core.PApplet.handleDraw(PApplet.java:2103)

at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:190)

at processing.core.PApplet.run(PApplet.java:2006)

at java.lang.Thread.run(Thread.java:680)

Thanks

PhiLho

PhiLho

Re: Getting a song to play with the help of minim

11 months ago

You see? Showing the code immediately allows to spot your error(s) instead of trying to guess them...

Here, you use player before having initialized it. Ie. don't call player.play() before the minim knows what to play (with the loadFile()).

renardg

Re: Getting a song to play with the help of minim

11 months ago

Thanks. Considered the code posted to be correct, except for the remark and also tried some 'permutations'. To cut a long story short: You also seem to get a NullPointerException when loadFile has a wrong filename. Processing is case sensitive ...

. (Hint: check the data folder!)

Now another question: How do I use *.wav audio files with minim?

According to Daniel Shiffmann's book something like this should work, but unless one uses an mp3 file it stops with a NullPointerException:

import ddf.minim.*;

import ddf.minim.signals.*;

import ddf.minim.analysis.*;

import ddf.minim.effects.*;

import ddf.minim.spi.*;

import ddf.minim.ugens.*;

Minim minim;

AudioSnippet player;

void setup()

{

size(100, 100);

minim = new Minim(this);

player = minim.loadSnippet("sound.wav"); //use an mp3 file and it works

player.play();

}

void draw()

{

}

void stop()

{

player.close();

minim.stop();

super.stop();

}

PhiLho

PhiLho

Re: Getting a song to play with the help of minim

11 months ago

With a quick glance on the Minim library page, it seems it supports Wav files. Now, it is a container format, with various codecs that can be inside. Although I suppose that if you can play the file with a simple audio player, Minim should be able to play it (right?).

soyyo1234

Re: Re: Getting a song to play with the help of minim

11 months ago

I am not a solid source as I am (eternally) new to processing but I am working on something similar and while trying to get a key pressed to trigger an mp3 file to play, I am only able to get the mp3 to play. My code looks like your player one (i.e. not the snippet) except I removed input = minim.getLineIn(); in the setup. I also found that anything I established in setup() had to be closed at the end.

This is what I have and it plays, it just isn't triggered by a key pressed:

PImage bg;

import ddf.minim.*;

Minim minim;

AudioPlayer player;

void setup()

{

minim = new Minim(this);

//load FLIRT.mp3 from Processing/minim/examples/Minim/loadFile/data/FLIRT.mp3

//player = minim.loadFile("FLIRT.mp3");

if (keyPressed == true);

player = minim.loadFile("FLIRT.mp3");

//play the file

player.play();

}

void draw()

{

}

void keyPressed()

{

player = minim.loadFile("FLIRT.mp3");

println ("Pressed" + millis());

}

void keyReleased()

{

println("Released " + millis());

}

void stop()

{

//always cose Minim audio classes when you are done

player.close();

minim.stop();

super.stop();

}

I hope this helps?

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