diff --git a/src/initialize-test-window.coffee b/src/initialize-test-window.coffee
index 690180fc8..3558b8d0f 100644
--- a/src/initialize-test-window.coffee
+++ b/src/initialize-test-window.coffee
@@ -48,13 +48,6 @@ module.exports = ({blobStore}) ->
 
     document.title = "Spec Suite"
 
-    # Avoid throttling of test window by playing silence
-    # See related discussion in https://github.com/atom/atom/pull/9485
-    context = new AudioContext()
-    source = context.createBufferSource()
-    source.connect(context.destination)
-    source.start(0)
-
     testRunner = require(testRunnerPath)
     legacyTestRunner = require(legacyTestRunnerPath)
     buildDefaultApplicationDelegate = -> new ApplicationDelegate()