diff --git a/aaf2/ama.py b/aaf2/ama.py
index <HASH>..<HASH> 100644
--- a/aaf2/ama.py
+++ b/aaf2/ama.py
@@ -171,6 +171,8 @@ def guess_edit_rate(metadata):
         codec_type = st['codec_type']
         if codec_type == 'video':
             return AAFRational(st['avg_frame_rate'])
+        elif codec_type == 'audio':
+            return AAFRational(f"{st['sample_rate']}/1")
 
 def guess_length(metadata, edit_rate):
     for st in metadata['streams']:
guess_edit_rate() now also implemented for audio types

This should allow create_ama_link() to work with audio files.