2 Quick Start

2.1 Setting up SND and Emacs

This is how I work. Perhaps you'll find this setup comfortable.

Download and unpack the latest version of snd-ls from http://www.notam02.no/arkiv/src/snd/
Compile and install it like this:

./build
./install
Link a ``scheme'' executable so that it points to the snd-ls binary
```
    ln -s  `which snd-ls` ~/bin/scheme
  
```
Start the jack server
Start emacs
Maximize Emacs so that it fills the whole screen
Load the file called ``rt-examples.scm'' into Emacs.
Split your window in two parts: C-x 2
Move the cursor to lower part window: C-x o
Run snd-ls: M-x run-scheme
Hide the SND window behind the Emacs window. We don't need to look at SND.
Move the cursor to the upper part window: C-x o
Evaluate blocks of code by placing the cursor inside a block and press Ctrl+Alt+x

(let ((osc (make-oscil)))
  (<rt-play> 0 3
	   (lambda ()
	     (out (* 0.8
		     (oscil osc))))))

A sinus is/should be heard for three seconds.

(define-rt2 (fib n)
  (if (< n 2)
      n
      (+ (fib (- n 1))
	 (fib (- n 2)))))

(fib 30)
-> 832040.0

(There are more examples in the file rt-examples.scm)