Update README.md

README.md

@@ -32,4 +32,33 @@ LAT-Bench exhibits balanced coverage across duration ranges and scenarios, ensur
   <em>Table 1: Temporal annotation statistics of LAT-Bench across DAC, TAG, and TAC tasks.</em>
   <img src="./Figures/bench-table.png" width="600"/>
 </p>
-The annotations provide comprehensive temporal coverage across the beginning, middle, and end of audio sequences.
+The annotations provide comprehensive temporal coverage across the beginning, middle, and end of audio sequences.
+
+## Data Organization
+
+LAT-Bench is organized into two types of files: **metadata files** and **task files**.
+
+### Metadata Files
+
+- `./meta/bench-CN-meta.jsonl`
+- `./meta/bench-EN-meta.jsonl`
+
+These files provide metadata for each audio sample, including:
+- `id`: unique identifier
+- `url`: source link for downloading the audio
+- `title`: original audio title
+- `duration`: duration in seconds
+
+### Task Files
+Dense Audio Captioning (DAC)
+- `./task/bench-CN-DAC.jsonl`
+- `./task/bench-EN-DAC.jsonl`
+Temporal Audio Grounding (TAG)
+- `./task/bench-CN-TAG.jsonl`
+- `./task/bench-EN-TAG.jsonl`
+Targeted Audio Captioning (TAC)
+- `./task/bench-CN-TAC.jsonl`
+- `./task/bench-EN-TAC.jsonl`
+
+Each task file contains benchmark instances in a unified format.
+The audios field references the corresponding audio sample using the id from metadata files.