Very cool. But quite slow.

Sounds seem to be fairly timed correctly here. A little off-beat some times. Especially when it goes to the next pattern.

It doesn't eat up CPU power. Just the applet itself goes slow.

By the way, I'm running 2ghz AMD and 1GB ram.

Hi, I tried to fix some of the problems you've mentioned. I doubled the buffer size. It's now 16kb, which should be more than enough. At least I am not having clicks or timing issues even when when other processes are loading the system. Also, I added destroy method to the main applet class which properly shuts down the audio line.

Thanks for all the comments!

Yeah, I just did some measurements and noticed that if the sequencer canvas is not drawn, the CPU usage is 0% according to my task manager... Otherwise it's ~11%. Something is definitely not right...

Edit: about the knobs, the method I used for rotation (calculating the angle) is also pretty common, at least in VSTi software synthesizers. The advantage in my method is that it offers more accuracy (when the mouse pointer is pulled further from the knob). I originally wrote the knob class for a soft synth of mine, where extra accuracy really matters.

Yea, I know that some VST instruments also behave like that... and I really really hate it

Takes now ~15% on a 500mhz cpu.

Whoops.. slight regression . Now it works like a charm. I hope.