# T-VecTTS: Adding time-varying-emotion control to flow-matching-based TTS

## submision number: 12680

# EMO-Change

A reference audio was constructed by concatenating two speech samples, each expressing a different emotion, to explicitly include multiple emotional cues within a single utterance.

Emotion | Index | Audio prompt | Generated audio
--- | --- | --- | ---
Voicebox | ELaTE | EmoCtrl-TTS | F5-TTS | Ours
Angry → Calm | (a) |  |  |  |  |  |
(b) |  |  |  |  |  |
Sad → Surprised | (a) |  |  |  |  |  |
(b) |  |  |  |  |  |
Happy → Disgusted | (a) |  |  |  |  |  |
(b) |  |  |  |  |  |
Calm → Fearful | (a) |  |  |  |  |  |
(b) |  |  |  |  |  |

# JVNV S2ST

Japanese-to-English speech-to-speech translation

Emotion | Index | Source audio (Japanese) | Translated audio (English)
--- | --- | --- | ---
SeamlessExpressive | Voicebox(*) | ELaTE(*) | EmoCtrl-TTS(*) | F5-TTS(**) | Ours(**)

(*): They share same backbone model (Voicebox)

(**): They share same backbone model (F5-TTS)