[CM] tap fixed - patch to tankrev.scm

[bil at ccrma.Stanford.EDU]

I only get about a 5% difference in times.  One way
to make it faster is to get rid of some type conversions:

	  (smpl-266 (* 1.0 (smpls->samples 266)))
	  (smpl-2974 (* 1.0 (smpls->samples 2974)))
	  (smpl-1913 (* 1.0 (smpls->samples 1913)))
            ...

If you use the #. version, the offsets are set
at read-time, so if you change srates later, the reverb
does not adjust.