update readme

README.md

@@ -14,6 +14,8 @@ size_categories:
 
 This dataset is a curated collection of bilingual speech corpora annotated clean transcriptions and rich metadata incluing age, gender, and emotion.
 
+⚠️ Note: The audio files in `/audio` are still being uploaded and may not yet be fully available. Please check back later for complete access.
+
 ## Dataset Structure
 
 ```bash
@@ -74,4 +76,18 @@ The corresponding audio file is located inside the extracted .tar.gz archive.
 
 ## 📌 Licence & Attribution
 
-Please refer to the original licenses of each sub-corpus. This dataset merely aggregates and annotates the metadata in a unified structure for research purposes.
+Please refer to the original licenses of each sub-corpus. This dataset merely aggregates and annotates the metadata in a unified structure for research purposes.
+
+
+## 📬 Citation
+
+If you use this file or its associated data in your research, please consider citing:
+
+```bibtex
+@article{wang2025spark,
+  title={Spark-tts: An efficient llm-based text-to-speech model with single-stream decoupled speech tokens},
+  author={Wang, Xinsheng and Jiang, Mingqi and Ma, Ziyang and Zhang, Ziyu and Liu, Songxiang and Li, Linqin and Liang, Zheng and Zheng, Qixi and Wang, Rui and Feng, Xiaoqin and others},
+  journal={arXiv preprint arXiv:2503.01710},
+  year={2025}
+}
+```