diff --git a/13.Demokit/1.Deploy_demokit/mirisconf/recorderd/room-a.json b/13.Demokit/1.Deploy_demokit/mirisconf/recorderd/room-a.json
index 9c7b5898f7fa3151bd0522d2b1c7943d03a56d87..f166f482fc58347304513cdd59faf00f05448f47 100755
--- a/13.Demokit/1.Deploy_demokit/mirisconf/recorderd/room-a.json
+++ b/13.Demokit/1.Deploy_demokit/mirisconf/recorderd/room-a.json
@@ -78,7 +78,6 @@
             "template": "alsasource",
             "device": "hw:0,1",
             "channels": 1,
-            "format": "S16LE",
             "rate": 44100
         },
         {
@@ -86,7 +85,6 @@
             "name": "sonycam_1",
             "template": "rtspasource",
             "channels": 1,
-            "format": "S16LE",
             "rate": 44100
         },
         {
@@ -94,7 +92,6 @@
             "name": "sonyve_1",
             "template": "rtspasource",
             "channels": 1,
-            "format": "S16LE",
             "rate": 44100
         },
         {
@@ -102,7 +99,6 @@
             "name": "srg360_1",
             "template": "rtspasource_adts_workaround",
             "channels": 1,
-            "format": "S16LE",
             "rate": 44100
         },
         {
@@ -111,7 +107,6 @@
             "template": "rawrtpasource",
             "port": 6010,
             "channels": 2,
-            "format": "S16LE",
             "rate": 44100
         },
         {
@@ -120,7 +115,6 @@
             "template": "atestsource",
             "wave": "ticks",
             "channels": 1,
-            "format": "S16LE",
             "rate": 44100
         }
     ],