diff --git a/src/Content/Text/BBCode.php b/src/Content/Text/BBCode.php
index 02c9551027..c5f9986f1f 100644
--- a/src/Content/Text/BBCode.php
+++ b/src/Content/Text/BBCode.php
@@ -1466,6 +1466,11 @@ class BBCode extends BaseObject
 
 		$text = str_replace('[hr]', '<hr />', $text);
 
+		if (!$for_plaintext) {
+			// Autolinker for isolated URLs
+			$text = preg_replace(Strings::autoLinkRegEx(), '[url]$1[/url]', $text);
+		}
+
 		// This is actually executed in Item::prepareBody()
 
 		$nosmile = strpos($text, '[nosmile]') !== false;
@@ -1648,9 +1653,7 @@ class BBCode extends BaseObject
 			$text = Smilies::replace($text);
 		}
 
-		// if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
 		if (!$for_plaintext) {
-			$text = preg_replace(Strings::autoLinkRegEx(), '[url]$1[/url]', $text);
 			if (in_array($simple_html, [7, 9])) {
 				$text = preg_replace_callback("/\[url\](.*?)\[\/url\]/ism", 'self::convertUrlForOStatusCallback', $text);
 				$text = preg_replace_callback("/\[url\=(.*?)\](.*?)\[\/url\]/ism", 'self::convertUrlForOStatusCallback', $text);
diff --git a/tests/src/Content/Text/BBCodeTest.php b/tests/src/Content/Text/BBCodeTest.php
index 3d8beb3930..1ff653db91 100644
--- a/tests/src/Content/Text/BBCodeTest.php
+++ b/tests/src/Content/Text/BBCodeTest.php
@@ -179,41 +179,48 @@ class BBCodeTest extends MockedTest
 			'bug-2199-named-size' => [
 				'expectedHtml' => '<span style="font-size: xx-large; line-height: initial;">Test text</span>',
 				'text' => '[size=xx-large]Test text[/size]',
-				'simpleHtml' => 0,
 			],
 			'bug-2199-numeric-size' => [
 				'expectedHtml' => '<span style="font-size: 24px; line-height: initial;">Test text</span>',
 				'text' => '[size=24]Test text[/size]',
-				'simpleHtml' => 0,
 			],
 			'bug-2199-diaspora-no-named-size' => [
 				'expectedHtml' => 'Test text',
 				'text' => '[size=xx-large]Test text[/size]',
+				'try_oembed' => false,
 				// Triggers the diaspora compatible output
 				'simpleHtml' => 3,
 			],
 			'bug-2199-diaspora-no-numeric-size' => [
 				'expectedHtml' => 'Test text',
 				'text' => '[size=24]Test text[/size]',
+				'try_oembed' => false,
 				// Triggers the diaspora compatible output
 				'simpleHtml' => 3,
 			],
+			'bug-7665-audio-tag' => [
+				'expectedHtml' => '<audio src="http://www.cendrones.fr/colloque2017/jonathanbocquet.mp3" controls="controls"><a href="http://www.cendrones.fr/colloque2017/jonathanbocquet.mp3">http://www.cendrones.fr/colloque2017/jonathanbocquet.mp3</a></audio>',
+				'text' => '[audio]http://www.cendrones.fr/colloque2017/jonathanbocquet.mp3[/audio]',
+				'try_oembed' => true,
+			],
 		];
 	}
 
 	/**
 	 * Test convert bbcodes to HTML
+	 *
 	 * @dataProvider dataBBCodes
 	 *
 	 * @param string $expectedHtml Expected HTML output
 	 * @param string $text         BBCode text
+	 * @param bool   $try_oembed   Whether to convert multimedia BBCode tag
 	 * @param int    $simpleHtml   BBCode::convert method $simple_html parameter value, optional.
 	 * @param bool   $forPlaintext BBCode::convert method $for_plaintext parameter value, optional.
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
-	public function testConvert($expectedHtml, $text, $simpleHtml = 0, $forPlaintext = false)
+	public function testConvert($expectedHtml, $text, $try_oembed = false, $simpleHtml = 0, $forPlaintext = false)
 	{
-		$actual = BBCode::convert($text, false, $simpleHtml, $forPlaintext);
+		$actual = BBCode::convert($text, $try_oembed, $simpleHtml, $forPlaintext);
 
 		$this->assertEquals($expectedHtml, $actual);
 	}