Update duckdb index files

.gitattributes

@@ -41,3 +41,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.wav filter=lfs diff=lfs merge=lfs -text
 160px/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 160px/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+320px/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

320px/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c3523abc07ea83324033dc756e9604ff6856225cc4d5748b149fdb141bf24ca3
+size 232534016