diff --git a/app/assets/stylesheets/common/000_vars.css.scss b/app/assets/stylesheets/common/000_vars.css.scss
index 65374d0b1..203985f24 100644
--- a/app/assets/stylesheets/common/000_vars.css.scss
+++ b/app/assets/stylesheets/common/000_vars.css.scss
@@ -77,3 +77,13 @@ $preview_flagged_color: #F00;
   text-align: center;
 }
 
+@mixin sound-icon {
+  content: "♪";
+  position: absolute;
+  width: 20px;
+  height: 20px;
+  color: white; 
+  background-color: rgba(0,0,0,0.5);
+  margin: 2px;
+  text-align: center;
+}
diff --git a/app/assets/stylesheets/specific/comments.css.scss b/app/assets/stylesheets/specific/comments.css.scss
index b48570eea..72debd349 100644
--- a/app/assets/stylesheets/specific/comments.css.scss
+++ b/app/assets/stylesheets/specific/comments.css.scss
@@ -98,7 +98,7 @@ div#c-comments {
     }
 
     div.post-preview {
-      &[data-tags~=animated], &[data-file-ext=swf], &[data-file-ext=webm], &[data-file-ext=zip] {
+      &[data-tags~=animated], &[data-file-ext=swf], &[data-file-ext=webm], &[data-file-ext=zip], &[data-file-ext=mp4] {
         div.preview {
           position: relative;
 
@@ -107,6 +107,16 @@ div#c-comments {
           }
         }
       }
+
+      &[data-has-sound=true] {
+        div.preview {
+          position: relative;
+
+          &:before {
+            @include sound-icon;
+          }
+        }
+      }
     }
 
     div.post {
diff --git a/app/assets/stylesheets/specific/mod_queue.css.scss b/app/assets/stylesheets/specific/mod_queue.css.scss
index 96e529d62..1a96ac28c 100644
--- a/app/assets/stylesheets/specific/mod_queue.css.scss
+++ b/app/assets/stylesheets/specific/mod_queue.css.scss
@@ -29,11 +29,17 @@ div#c-moderator-post-queues {
       width: 800px;
     }
 
-    &[data-tags~=animated], &[data-file-ext=swf], &[data-file-ext=webm], &[data-file-ext=zip] {
+    &[data-tags~=animated], &[data-file-ext=swf], &[data-file-ext=webm], &[data-file-ext=zip], &[data-file-ext=mp4] {
       aside:before {
         @include animated-icon;
       }
     }
+
+    &[data-has-sound=true] {
+      aside:before {
+        @include sound-icon;
+      }
+    }
   }
 
   div#moderation-guideline {
diff --git a/app/assets/stylesheets/specific/posts.css.scss b/app/assets/stylesheets/specific/posts.css.scss
index 901f2f6f8..189a5c250 100644
--- a/app/assets/stylesheets/specific/posts.css.scss
+++ b/app/assets/stylesheets/specific/posts.css.scss
@@ -26,9 +26,13 @@ article.post-preview {
     margin: auto;
   }
 
-  &[data-tags~=animated]:before, &[data-file-ext=swf]:before, &[data-file-ext=webm]:before, &[data-file-ext=zip]:before {
+  &[data-tags~=animated]:before, &[data-file-ext=swf]:before, &[data-file-ext=webm]:before, &[data-file-ext=mp4]:before, &[data-file-ext=zip]:before {
     @include animated-icon;
   }
+
+  &[data-has-sound=true]:before {
+    @include sound-icon;
+  }
 }
 
 #iqdb-similar {
diff --git a/app/logical/sources/strategies/twitter.rb b/app/logical/sources/strategies/twitter.rb
index b9f796342..c73a0c8e4 100644
--- a/app/logical/sources/strategies/twitter.rb
+++ b/app/logical/sources/strategies/twitter.rb
@@ -25,7 +25,7 @@ module Sources::Strategies
       attrs = TwitterService.new.client.status(status_id).attrs
       @artist_name = attrs[:user][:name]
       @profile_url = "https://twitter.com/" + attrs[:user][:screen_name]
-      @image_url = attrs[:entities][:media][0][:media_url] + ":orig"
+      @image_url = image_urls.first
       @artist_commentary_title = ""
       @artist_commentary_desc = attrs[:text]
     end
diff --git a/app/logical/twitter_service.rb b/app/logical/twitter_service.rb
index 1b793e4d5..fa0e317d5 100644
--- a/app/logical/twitter_service.rb
+++ b/app/logical/twitter_service.rb
@@ -24,7 +24,13 @@ class TwitterService
       urls << obj[:media_url] + ":orig"
     end
     attrs[:extended_entities][:media].each do |obj|
-      urls << obj[:media_url] + ":orig"
+      if obj[:video_info]
+        largest = obj[:video_info][:variants].select {|x| x[:url] =~ /\.mp4$/}.max_by {|x| x[:bitrate]}
+        urls.clear
+        urls << largest[:url] if largest
+      else
+        urls << obj[:media_url] + ":orig"
+      end
     end
     urls.uniq
   rescue
diff --git a/app/models/upload.rb b/app/models/upload.rb
index e0c0c0c97..a743a5db5 100644
--- a/app/models/upload.rb
+++ b/app/models/upload.rb
@@ -85,9 +85,9 @@ class Upload < ActiveRecord::Base
       end
     end
 
-    def validate_no_audio
+    def tag_audio
       if is_video? && video.audio_channels.present?
-        raise "video must not have audio channels"
+        self.tag_string = "#{tag_string} video_with_sound"
       end
     end
 
@@ -112,7 +112,7 @@ class Upload < ActiveRecord::Base
         calculate_hash(file_path)
         validate_md5_uniqueness
         validate_md5_confirmation
-        validate_no_audio
+        tag_audio
         validate_video_duration
         calculate_file_size(file_path)
         if has_dimensions?
diff --git a/app/presenters/post_presenter.rb b/app/presenters/post_presenter.rb
index c1c1a13de..d15985e4d 100644
--- a/app/presenters/post_presenter.rb
+++ b/app/presenters/post_presenter.rb
@@ -68,6 +68,7 @@ class PostPresenter < Presenter
   def self.data_attributes(post)
     %{
       data-id="#{post.id}"
+      data-has-sound="#{post.has_tag?('video_with_sound|flash_with_sound')}"
       data-tags="#{h(post.tag_string)}"
       data-pools="#{post.pool_string}"
       data-uploader="#{h(post.uploader_name)}"