diff --git a/experiments/characterization/BS1534-5/config/BS1534-5.yml b/experiments/characterization/BS1534-5/config/BS1534-5.yml
index 4104544dc96119715c53c61a16052bc2b16ba878..df99113ea630f2d26dce5cd16fff644d9196b19d 100644
--- a/experiments/characterization/BS1534-5/config/BS1534-5.yml
+++ b/experiments/characterization/BS1534-5/config/BS1534-5.yml
@@ -54,7 +54,7 @@ conditions_to_generate:
     c03:
         type: evs
         ivas_rend:
-            fmt: '7_1_4'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 64000
@@ -67,7 +67,7 @@ conditions_to_generate:
     c04:
         type: evs
         ivas_rend:
-            fmt: '7_1_4'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 128000
diff --git a/experiments/characterization/BS1534-6/config/BS1534-6.yml b/experiments/characterization/BS1534-6/config/BS1534-6.yml
index 14aea014bf70c6037300e003741aace11c74ac0a..2b07b3f5f854334a2f48b93413f7b644c6f342ad 100644
--- a/experiments/characterization/BS1534-6/config/BS1534-6.yml
+++ b/experiments/characterization/BS1534-6/config/BS1534-6.yml
@@ -54,7 +54,7 @@ conditions_to_generate:
     c03:
         type: evs
         ivas_rend:
-            fmt: '5_1'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 16400
@@ -67,7 +67,7 @@ conditions_to_generate:
     c04:
         type: evs
         ivas_rend:
-            fmt: '5_1'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 32000
diff --git a/experiments/characterization/BS1534-9/config/BS1534-9.yml b/experiments/characterization/BS1534-9/config/BS1534-9.yml
index e71400a6217482115810cc4224aeb78d3bde3ab6..7a1e2d4cd9f3d34a9744ba5681565839468ce045 100644
--- a/experiments/characterization/BS1534-9/config/BS1534-9.yml
+++ b/experiments/characterization/BS1534-9/config/BS1534-9.yml
@@ -54,7 +54,7 @@ conditions_to_generate:
     c03:
         type: evs
         ivas_rend:
-            fmt: '7_1_4'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 64000
@@ -67,7 +67,7 @@ conditions_to_generate:
     c04:
         type: evs
         ivas_rend:
-            fmt: '7_1_4'
+            fmt: STEREO
             bin: ivas_processing_scripts/bin/IVAS_rend
         bitrates:
             - 128000