Update duckdb index files

.gitattributes

@@ -71,3 +71,4 @@ default/funcodec_zh_en_16k_nq32ds640/index.duckdb filter=lfs diff=lfs merge=lfs
 default/speech_tokenizer_16k/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/original/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/academicodec_hifi_24k_320d/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/audiodec_24k_320d/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/audiodec_24k_320d/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:117ee5e62ec7b35e6137ad6ec8169804586f3fb66c70e3e3fdb5d5f3b990c42f
+size 683683840