diff --git a/ivas_processing_scripts/audiotools/wrappers/bs1770.py b/ivas_processing_scripts/audiotools/wrappers/bs1770.py
index bd890c1cf55fae528229fa3e1de188f3f644644d..e538802335b68e9cfd6009ba0636253407b6adbf 100755
--- a/ivas_processing_scripts/audiotools/wrappers/bs1770.py
+++ b/ivas_processing_scripts/audiotools/wrappers/bs1770.py
@@ -86,13 +86,15 @@ def bs1770demo(
     result_check = run([str(binary)], check=False)
     if "-rms" not in result_check.stdout:
         raise RuntimeError(
-            'An bs1770demo executable without RMS support (cmdl option "-rms") was detected. Please update the bs1770demo executable. See bin/README.md for details.'
+            'A bs1770demo executable without RMS support (cmdl option "-rms") was detected. Please update the bs1770demo executable. See bin/README.md for details.'
         )
 
     if not isinstance(input, audio.BinauralAudio) and not isinstance(
         input, audio.ChannelBasedAudio
     ):
-        raise NotImplementedError(f"{input.name} is unsupported in ITU-R BS.1770-4.")
+        raise NotImplementedError(
+            f"{input.name} is unsupported in ITU-R BS.1770-4. Ensure loudness format was set correctly in CLI/YAML."
+        )
 
     if input.fs != 48000:
         warn(