diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/sco/sco-main.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/sco/sco-main.tt
index c8366f4d11..e883f92460 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/sco/sco-main.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/sco/sco-main.tt
@@ -557,7 +557,8 @@
                 }
             });
             function playSound( sound ) {
-                if (  ( sound.indexOf('http://') == 0 || sound.indexOf('https://') == 0 )  ) {
+                if (!(sound.indexOf("http://") === 0 || sound.indexOf("https://") === 0)) {
+                    sound = '[% interface | html %]' + '/bootstrap/sound/' + sound;
                     document.getElementById("audio-alert").innerHTML = '<audio src="' + sound + '" autoplay="autoplay" autobuffer="autobuffer"></audio>';
                 }
             }
diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/IM_notification.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/IM_notification.ogg
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index 0000000000..66c1901219
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/beep.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/beep.ogg
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index 0000000000..67deda8035
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/call.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/call.ogg
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index 0000000000..8e02cd6f65
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/critical.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/critical.ogg
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index 0000000000..1af3f56d12
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/device_connect.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/device_connect.ogg
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index 0000000000..0fe749861a
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/device_disconnect.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/device_disconnect.ogg
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index 0000000000..09a4b8f98e
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/ending.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/ending.ogg
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index 0000000000..7ee5691559
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/fail.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/fail.ogg
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index 0000000000..0e361f3282
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/incoming_call.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/incoming_call.ogg
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index 0000000000..01aa56b228
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/loading.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/loading.ogg
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index 0000000000..b8230bb1cd
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/loading_2.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/loading_2.ogg
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index 0000000000..7cc8c5eb24
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/maximize.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/maximize.ogg
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index 0000000000..39fad2589a
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/minimize.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/minimize.ogg
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index 0000000000..1ebc2d4d3f
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/new_mail_notification.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/new_mail_notification.ogg
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index 0000000000..ad11bcf5e8
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/opening.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/opening.ogg
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index 0000000000..783e2da161
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/panic.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/panic.ogg
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index 0000000000..1801b72f81
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/popup.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/popup.ogg
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index 0000000000..b481501f33
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diff --git a/koha-tmpl/opac-tmpl/bootstrap/sound/warning.ogg b/koha-tmpl/opac-tmpl/bootstrap/sound/warning.ogg
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index 0000000000..1ea74d4ff6
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