This is an example resample utility which I managed to compile from the
latest version of libsamplerate.


  A Sample Rate Converter using libsndfile for file I/O and Secret 
  Rabbit Code (aka libsamplerate) for performing the conversion.
  It works on any file format supported by libsndfile with any 
  number of channels (limited only by host memory).

       libsamplerate-0.1.4 (c) 2002-2008 Erik de Castro Lopo
       libsndfile-1.0.17

  Usage : 
       sndfile-resample -to <new sample rate> [-c <number>] <input file> <output file>
       sndfile-resample -by <amount> [-c <number>] <input file> <output file>

  The optional -c argument allows the converter type to be chosen from
  the following list :

       0 : Best Sinc Interpolator
       1 : Medium Sinc Interpolator (default)
       2 : Fastest Sinc Interpolator
       3 : ZOH Interpolator
       4 : Linear Interpolator


Sources and more details available from:-

http://www.mega-nerd.com/libsamplerate


Feeling bored ?  :)
Why not check out this URL ?

http://home.iprimus.com.au/lombi/1/homepage.htm

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
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[generic]                  610    1233  49.5% -lh5- cb37 Jul  2 22:23 readme
[generic]              1535016 1535016 100.0% -lh0- d48e Aug 29 12:36 sndfile-resample
[generic]                  662    1277  51.8% -lh5- c1ca Aug 29 13:41 sndfile_resample.readme
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 Total         3 files 1536288 1537526  99.9%            Aug 29 19:28