diff --git a/python_apps/pypo/media/update/silananalyzer.py b/python_apps/pypo/media/update/silananalyzer.py
index 02b11079a..4d93deddf 100644
--- a/python_apps/pypo/media/update/silananalyzer.py
+++ b/python_apps/pypo/media/update/silananalyzer.py
@@ -41,13 +41,17 @@ class SilanAnalyzer(Thread):
                 full_path = f['fp']
                 # silence detect(set default queue in and out)
                 try:
-                    command = ['nice', '-n', '19', 'silan', '-b', '-f', 'JSON', full_path]
-                    proc = subprocess.Popen(command, stdout=subprocess.PIPE)
-                    out = proc.communicate()[0].strip('\r\n')
-                    info = json.loads(out)
                     data = {}
-                    data['cuein'] = str('{0:f}'.format(info['sound'][0][0]))
-                    data['cueout'] = str('{0:f}'.format(info['sound'][-1][1]))
+                    command = ['nice', '-n', '19', 'silan', '-b', '-f', 'JSON', full_path]
+                    try:
+                        proc = subprocess.Popen(command, stdout=subprocess.PIPE)
+                        out = proc.communicate()[0].strip('\r\n')
+                        info = json.loads(out)
+                        data['cuein'] = str('{0:f}'.format(info['sound'][0][0]))
+                        data['cueout'] = str('{0:f}'.format(info['sound'][-1][1]))
+                    except Exception, e:
+                        self.logger.error(str(command))
+                        self.logger.error(e)
                     processed_data.append((f['id'], data))
                     total += 1
                     if total % 5 == 0: