@INPROCEEDINGS{11249141, author={Kojima, Atsushi and Fujita, Yusuke and Shi, Hao and Mizumoto, Tomoya and Zhao, Mengjie and Sudo, Yui}, booktitle={2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)}, title={Conversation Context-Aware Direct Preference Optimization for Style-Controlled Speech Synthesis}, year={2025}, volume={}, number={}, pages={573-578}, keywords={Training;Emotion recognition;Accuracy;Vocoders;Oral communication;Predictive models;Rendering (computer graphics);Text to speech;Optimization;Context modeling}, doi={10.1109/APSIPAASC65261.2025.11249141}}