Spark TTS

Spark TTS TTS

Voice cloning from five seconds of audio combined with prompt-based control over emotion, speed, and speaking style.

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<speak><prosody rate="slow">Slow speech</prosody></speak>

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Om Spark TTS

Spark TTS by SparkAudio merges voice cloning with controllable delivery in a single prompt-driven system. Using just five seconds of reference audio it clones a voice, then lets you steer emotion, speed, and speaking style while keeping that cloned identity intact. Under the hood it combines a BiCodec audio tokenizer, an LLM, and flow matching, and it supports English and Chinese. It is aimed at content creation where a single cloned voice needs to express a range of moods and pacing. Note the licensing split: Spark's code is Apache 2.0, but the model weights are released under CC BY-NC-SA 4.0, which restricts commercial use.

Bedst for: Content creation with cloned voices and emotional control

Gennemse alle Spark TTS stemmer

Et blik

Udvikler
SparkAudio
Licens
CC BY-NC-SA 4.0
Metodetrin
standard
Hastighed
medium
Stemmekloning
Ja
Sprog
English, Chinese
Maks. tegn
1000

Spark TTS stemmer

Chinese Default

Chinese
Standard Neutral

Default

English
Standard Neutral

Spark TTS Ofte stillede spørgsmål om TTS

It uses a prompt-based control system layered on top of voice cloning, so you can adjust emotion, speed, and speaking style while preserving the identity of the cloned voice.

About five seconds of reference audio is enough to clone a voice in English or Chinese.

Its model weights are licensed CC BY-NC-SA 4.0, which prohibits commercial use, even though the project code is Apache 2.0. Choose a permissively-licensed model for commercial work.
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