Delay estimation code (Matlab / Octave)

Hello,

some advertisement: 
I released a new version of my delay estimation subroutine (Matlab /
Octave). It finds the delay and scaling factor between two cyclic (or
zero-padded) signals, and applies it to one signal in order to match the
other.

Download links are on [1] at the top of the page. 
The main algorithm is described in my blog entry [2] from 2007, which was
rewritten a month ago.
The fallback algorithm is documented in [3].
The code also supports phase unwrapping as an algorithm option, see line
57. 

I hope it's useful.

Cheers

Markus

[1] http://www.dsprelated.com/showcode/207.php
[2] http://www.dsprelated.com/showarticle/26.php
[3] http://www.dsprelated.com/showcode/288.php