diff --git a/bin/em/variabletime/web/js/audio.js b/bin/em/variabletime/web/js/audio.js
index 5079429..8c06cf6 100644
--- a/bin/em/variabletime/web/js/audio.js
+++ b/bin/em/variabletime/web/js/audio.js
@@ -329,6 +329,7 @@ const Audio = function(tp, record) {
         source_Dom.id = toCssClass(`audio_source${propTitle}`);
         const source_mic = document.createElement('option');
         source_mic.value = 'microphone';
+        source_mic.title = 'microphone';
         source_mic.innerHTML = 'microphone';
         source_Dom.append(source_mic);
         let selectedSource = 'microphone';
@@ -345,6 +346,7 @@ const Audio = function(tp, record) {
                         source_file.setAttribute('selected','true');
                     }
                     source_file.value = file;
+                    source_file.title = file;
                     if (file.length > config.audio.maxFilenameLength) {
                         source_file.innerHTML = file.substr(0,6) + '..' + file.substr(file.length - 6, 6);
                     } else {