--- a/signals/gspi.m
+++ b/signals/gspi.m
@@ -1,13 +1,14 @@
 function [s,fs]=gspi()
 %GSPI  Load the 'glockenspiel' test signal.
 %
-%   GSPI loads the 'glockenspiel' signal. The is 262144 samples long,
-%   mono, recorded at 44100 Hz using 16 bit quantization.
+%   `gspi` loads the 'glockenspiel' signal. This is a recording of a simple
+%   tune played on a glockenspiel. It is 262144 samples long, mono, recorded
+%   at 44100 Hz using 16 bit quantization.
 %   
-%   [sig,fs]=GSPI additionally returns the sampling frequency fs.
+%   `[sig,fs]=gspi` additionally returns the sampling frequency *fs*.
 %
-%   The signal, and other similar audio tests signals, can be found on
-%   http://andrew.csie.ncyu.edu.tw/html/mpeg4/sound.media.mit.edu/mpeg4/audio/sqam/index.html
+%   This signal, and other similar audio tests signals, can be found on
+%   the EBU SQAM test signal CD `<http://tech.ebu.ch/publications/sqamcd>`_.
 %
   
 %   AUTHOR : Peter Soendergaard
@@ -23,4 +24,4 @@
 % Load audio signal
 s = wavread([f,'.wav']);
 fs = 44100;
-%OLDFORMAT
+