diff -u b/core/modules/file/src/Plugin/Field/FieldFormatter/FileMediaFormatterBase.php b/core/modules/file/src/Plugin/Field/FieldFormatter/FileMediaFormatterBase.php
--- b/core/modules/file/src/Plugin/Field/FieldFormatter/FileMediaFormatterBase.php
+++ b/core/modules/file/src/Plugin/Field/FieldFormatter/FileMediaFormatterBase.php
@@ -32,7 +32,7 @@
   public function settingsForm(array $form, FormStateInterface $form_state) {
     return [
       'controls' => [
-        '#title' => $this->t('Show audio controls'),
+        '#title' => $this->t('Show @type controls', ['@type' => static::getMimeType()]),
         '#type' => 'checkbox',
         '#default_value' => $this->getSetting('controls'),
       ],
@@ -87,7 +87,12 @@
     $summary[] = $this->t('Controls: %controls', ['%controls' => $this->getSetting('controls') ? $this->t('visible') : $this->t('hidden')]);
     $summary[] = $this->t('Autoplay: %autoplay', ['%autoplay' => $this->getSetting('autoplay') ? $this->t('yes') : $this->t('no')]);
     $summary[] = $this->t('Loop: %loop', ['%loop' => $this->getSetting('loop') ? $this->t('yes') : $this->t('no')]);
-    $summary[] = $this->t('Multiple files: %multiple', ['%multiple' => $this->getSetting('multiple_file_behavior')]);
+    if ($this->getSetting('multiple_file_behavior') === 'tags') {
+      $summary[] = $this->t('Multiple files: Multiple %tag tags', ['%tag' => '<' . static::getMimeType() . '>']);
+    }
+    elseif ($this->getSetting('multiple_file_behavior') === 'sources') {
+      $summary[] = $this->t('Multiple files: One %tag tag with multiple sources', ['%tag' => '<' . static::getMimeType() . '>']);
+    }
     return $summary;
   }
 
@@ -142,7 +147,7 @@
   }
 
   /**
-   * Check if given MIME type applies to formatter one.
+   * Check if given MIME type applies to the one of the formatter.
    *
    * @param string $mime_type
    *   The complete MIME type.