Update duckdb index files

.gitattributes

@@ -36,3 +36,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 48K_mp3_bokmaal/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 16K_mp3_bokmaal/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 48K_mp3_bokmaal/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+16K_mp3/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

16K_mp3/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c0ec8aa391794bd480525d18ed4f5913367a7277a85e8723b649a80a9ecb408f
+size 1131163648