gnu: Add soxr.

* gnu/packages/audio.scm (soxr): New variable.

gnu/packages/audio.scm

@@ -25,6 +25,7 @@
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system waf)
   #:use-module (guix build-system trivial)
+  #:use-module (guix build-system cmake)
   #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages autotools)
@@ -819,3 +820,24 @@ and playback rates of audio streams or audio files.  It is intended for
 application developers writing sound processing tools that require tempo/pitch
 control functionality, or just for playing around with the sound effects.")
     (license license:lgpl2.1+)))
+
+(define-public soxr
+  (package
+    (name "soxr")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://sourceforge/soxr/soxr-" version
+                       "-Source.tar.xz"))
+       (sha256
+        (base32 "1hmadwqfpg15vhwq9pa1sl5xslibrjpk6hpq2s9hfmx1s5l6ihfw"))))
+    (build-system cmake-build-system)
+    (arguments '(#:tests? #f))          ;no 'check' target
+    (home-page "http://sourceforge.net/p/soxr/wiki/Home/")
+    (synopsis "One-dimensional sample-rate conversion library")
+    (description
+     "The SoX Resampler library (libsoxr) performs one-dimensional sample-rate
+conversion.  It may be used, for example, to resample PCM-encoded audio.")
+    (license license:lgpl2.1+)))