diff --git a/src/FFMpeg/Media/Audio.php b/src/FFMpeg/Media/Audio.php
index 25c8961..19f3478 100644
--- a/src/FFMpeg/Media/Audio.php
+++ b/src/FFMpeg/Media/Audio.php
@@ -102,4 +102,16 @@ class Audio extends AbstractStreamableMedia
 
         return $this;
     }
+
+    /**
+     * Gets the waveform of the video.
+     *
+     * @param  integer $width
+     * @param  integer $height
+     * @return Waveform
+     */
+    public function waveform($width = 640, $height = 120)
+    {
+        return new Waveform($this, $this->driver, $this->ffprobe, $width, $height);
+    }
 }
diff --git a/src/FFMpeg/Media/Video.php b/src/FFMpeg/Media/Video.php
index d6852a2..9200f49 100644
--- a/src/FFMpeg/Media/Video.php
+++ b/src/FFMpeg/Media/Video.php
@@ -181,16 +181,4 @@ class Video extends Audio
     {
         return new Frame($this, $this->driver, $this->ffprobe, $at);
     }
-
-    /**
-     * Gets the waveform of the video.
-     *
-     * @param  integer $width
-     * @param  integer $height
-     * @return Waveform
-     */
-    public function waveform($width = 640, $height = 120)
-    {
-        return new Waveform($this, $this->driver, $this->ffprobe, $width, $height);
-    }
 }