Hello! Recently I realized that my MacBook Pro (Retina Display) doesn’t have a built-in audio line-in! I’m quite upset about this since I paid lots of money for this machine and even with my older MacBook I was able to switch between audio in and out with its single jack.

Consequently I bought an external USB audio interface for an audio input which seems to work fine, but even if I select the USB interface as input in the settings, Processing (with the minim library) still uses the built-in microphone.

Can anyone help?

Hello!

I wrote a programme for live visuals, using the promidi library and a Korg nano controller to play with it. When I press the „SCENE“ button on my controller (and only when I do that) the console writes the following message:

java.lang.ClassCastException: com.sun.media.sound.FastSysexMessage

cannot be cast to javax.sound.midi.ShortMessage
    at promidi.MidiInDevice.send( MidiInDevice.java:98)
    at com.sun.media.sound. AbstractMidiDevice$ TransmitterList.sendMessage( AbstractMidiDevice.java:701)
    at com.sun.media.sound. MidiInDevice. callbackLongMessage( MidiInDevice.java:162)
    at com.sun.media.sound. MidiInDevice.nGetMessages( Native Method)
    at com.sun.media.sound. MidiInDevice.run(MidiInDevice. java:123)
    at java.lang.Thread.run(Thread. java:680)

 

I think it always did that but I never paid much attention to it. However since I updated to Processing 2.0.1 the programme crashes.

Can somebody maybe explain this message to me? I have no idea how to fix that.

Thank you so much!

Hello,

I wrote a sketch that visualizes music and can be controlled live with a midi controller. So far I haven’t updated it for the Processing 2.0 Beta because it runs very smoothly and stable with the JAVA2D renderer.

For an upcoming show in a club next week some people asked me if it would be possible to map my visuals onto objects. So I’m desperately looking for an easy way to send my Processing visuals to Syphon so I can use a mapper.

I found posts talking about a jsyphon library but they are a couple of years old and apparently there is a new library in development on http://syphon.v002.info? But this one only works with Processing 2.0 and OPENGL right?

Maybe somebody could point out to me the best way to do this? Thank you so much for your help!

Hello!

I’m working on a sound visualisation programme and I’m having a few problems getting to work it nicely.

I started using the BeatDetect class in the frequency energy mode because I thought it would be neat to use isKick(), isSnare(), isHat() to draw my shapes. As you can see at the bottom I more or less copied the code from the library example.

Since I’m using the programme for electronic music I figured out that the beats/kicks are most important to display the music, but I’m not really satisfied with how it works.

Consequently I tried to use isOnset() and isRange() but honestly I have now idea how many frequency bands are there and what they stand for. The problem is that I’m coming from a visual background and hardly know what buffer size and sampling rate means.

All I want to do is to capture the song’s beat in the most accurate way, kind of like tapping your feet to a song.


I would be very thankful for any kind of help!




import ddf.minim.*;
import ddf.minim.analysis.*;
Minim minim;
AudioInput song;
BeatDetect beat;
BeatListener bl;
int i=0;

...

minim = new Minim(this);
song = minim.getLineIn(Minim.STEREO, 512);
beat = new BeatDetect(song.bufferSize(), song.sampleRate());
beat.setSensitivity(10);
bl = new BeatListener(beat, song);

...

if ( beat.isKick() ) { etc.