diff --git a/sounds/nthompson/dsbarexp.wav b/sounds/nthompson/dsbarexp.wav
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diff --git a/sounds/nthompson/license.txt b/sounds/nthompson/license.txt
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+++ b/sounds/nthompson/license.txt
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+These sounds were obtained from
+
+	<http://freesound.iua.upf.edu/samplesViewSingle.php?id=47251>
+	<http://freesound.iua.upf.edu/samplesViewSingle.php?id=47252>
+
+via forum thread
+<http://www.doomworld.com/vb/freedoom/42119-freedoom-0-6-rc2-was-rc1/>.
+
+The freedoom license was adapted for them, as per this message by the author,
+"muffins.exe":
+
+	I am the original author of these sounds and I release them under the
+	Modified BSD license.
+
+	What? :)
+
+original URL: 
+<http://www.doomworld.com/vb/post/704866>
+
+Downsampled to 11025Hz by Jon Dowland.
diff --git a/sounds/sodaholic/dsrlaunc.wav b/sounds/sodaholic/dsrlaunc.wav
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diff --git a/sounds/sodaholic/dsskeatk.wav b/sounds/sodaholic/dsskeatk.wav
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