diff --git a/license.txt b/license.txt
index a0c5ea7..9bab5bc 100644
--- a/license.txt
+++ b/license.txt
@@ -85,4 +85,4 @@ Desert Simple.wav, Creative Commons 0 License, Proxima4, http://www.freesound.or
 
 http://www.freesfx.co.uk/soundeffects/forests-jungles/
 
-icecrack.ogg by figowitz (http://freesound.org/people/Figowitz/sounds/67881/)
+icecrack.ogg by ecfike, Creative Commons 0 license (https://freesound.org/people/ecfike/sounds/177212/)
diff --git a/sounds/SoundLicenses.txt b/sounds/SoundLicenses.txt
deleted file mode 100644
index dd85025..0000000
--- a/sounds/SoundLicenses.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-
-Sound licenses:
-
---Nightime Sound, Recorded by Mike Koenig, License: Attribution 3.0 http://soundbible.com/951-Nightime.html
-
---Crickets At Night Sound, License: Attribution 3.0 | Recorded by Mike Koenig |http://soundbible.com/365-Crickets-At-Night.html
-
---Medium Pack Of Wolves Howling, License: Public Domain | Recorded by fws.gov, http://soundbible.com/277-Medium-Pack-Of-Wolves-Howling.html
-
---Horned Owl Sound, License: Attribution 3.0 | Recorded by Mike Koenig , http://soundbible.com/1851-Horned-Owl.html
-
---Bats In Cave Sound, License: CC0 | Recorded by SaloSensei , https://freesound.org/people/SaloSensei/sounds/616219/
-
---Spooky Water Drops Sound, License: Attribution 3.0 | Recorded by Mike Koenig, http://soundbible.com/380-Spooky-Water-Drops.html
-
--- Single Water Droplet Sound, License: Attribution 3.0 | Recorded by Mike Koenig, http://soundbible.com/384-Single-Water-Droplet.html
-
---HollowWind, Black Boe, Creative Commons 0 License, http://www.freesound.org/people/Black%20Boe/sounds/22331/
-
---drippingwater*.ogg sounds: CC0, Dripping Water Mod, by kddekadenz, http://minetest.net/forum/viewtopic.php?id=1688
-
---best cardinal bird: License: Attribution 3.0 | Recorded by PsychoBird,  http://soundbible.com/1515-Best-Cardinal-Bird.html
-
---birdsongnl: the Attribution License, HerbertBoland, http://www.freesound.org/people/HerbertBoland/sounds/28312/  (end)
-
---robin2:  Attribution License, reinsamba, http://www.freesound.org/people/reinsamba/sounds/32479/  (end)
-
---Craw.WAV, Attribution License, inchadney, http://www.freesound.org/people/inchadney/sounds/52450/
-
---bluejay.wav,  Creative Commons 0 License,  UncleSigmund, http://www.freesound.org/people/UncleSigmund/sounds/42382/
-
---scuba1*.ogg- digifishmusic, Attribution License, http://www.freesound.org/people/digifishmusic/sounds/45521/
-
---dolphin_screaming - Creative Commons 0 License, felix.blume, http://www.freesound.org/people/felix.blume/sounds/161691/
-
-ComboWind uses:
---wind-in-the-trees -Attribution License, laurent, http://www.freesound.org/people/laurent/sounds/16995/
---drygrassInWind- Creative Commons 0 License, felix.blume, http://www.freesound.org/people/felix.blume/sounds/146436/
-
---Splash: Attribution 3.0 | Recorded by BlastwaveFx.com, http://soundbible.com/546-Fish-Splashing.html
-
---small_waterfall Attribution License, volivieri, http://www.freesound.org/people/volivieri/sounds/38390/
-
---Lake_Waves_2*, Attribution License, Benboncan, http://www.freesound.org/people/Benboncan/sounds/67884/
-
---earth01a, Creative Commons 0 License., Halion , http://www.freesound.org/people/Halion/sounds/17785
-
---fiji_beach, Creative Commons 0 License, c97059890, http://www.freesound.org/people/c97059890/sounds/21754/
-
---seagull, Attribution 3.0 License., hazure,  http://www.freesound.org/people/hazure/sounds/23707/,
-
-desert:
-coyote2, Attribution License, rogerforeman, http://www.freesound.org/people/rogerforeman/sounds/68068/
-http://www.freesound.org/people/Proxima4/sounds/104319/
-Desert Monolith.wav, Creative Commons 0 License, Proxima4, http://www.freesound.org/people/Proxima4/sounds/104319/
-Rattlesnake Rattle, Public Domain, fws.gov,  http://soundbible.com/237-Rattlesnake-Rattle.html
-
-flying:
-crystal_airlines: Attribution License, suonho, http://www.freesound.org/people/suonho/sounds/56364/
-
-desert wind:
-Desert Simple.wav, Creative Commons 0 License, Proxima4, http://www.freesound.org/people/Proxima4/sounds/104320/
-
-http://www.freesfx.co.uk/soundeffects/forests-jungles/
-
-icecrack.ogg by figowitz (http://freesound.org/people/Figowitz/sounds/67881/)
diff --git a/sounds/icecrack.ogg b/sounds/icecrack.ogg
index c09fcb2..273b0a4 100644
Binary files a/sounds/icecrack.ogg and b/sounds/icecrack.ogg differ
diff --git a/soundsets.lua b/soundsets.lua
index b7edb0e..a602ce1 100644
--- a/soundsets.lua
+++ b/soundsets.lua
@@ -238,7 +238,7 @@ ambience.add_set("ice", {
 	frequency = 250,
 
 	sounds = {
-		{name = "icecrack", length = 23, gain = 0.7},
+		{name = "icecrack", length = 5, gain = 0.7},
 		{name = "desertwind", length = 8},
 		{name = "wind", length = 9}
 	},