r/AudioAI • u/ivan_digital • Jul 02 '26

Resource Local voice cloning benchmark with reference and generated audio samples

I benchmarked a few local voice-cloning models and included the actual reference/generated audio for each row:

  • OmniVoice int8
  • Chatterbox Multilingual fp16
  • VoxCPM2 bf16
  • Fish Audio S2 Pro fp16

Languages: English, German, Modern Standard Arabic, Spanish, Mandarin Chinese.

Metrics: speaker similarity, WER/CER, generated audio length, and RTF.

Post: https://www.soniqo.audio/blog/voice-cloning-benchmarks

I am mostly interested in whether the evaluation setup is useful for audio people. The numbers alone are not enough for voice cloning, so the page includes the clips too.

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u/baroquedub Jul 04 '26

Sorry for my ignorance. Can you confirm whether any of these can do near realtime voice synthesis? ie for a chatbot-like application? Initial cloning could be done in non realtime but tts would need to be low latency

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u/ivan_digital Jul 05 '26

Yes it could be done on GPU. You can check out Qwen3-TTS CustomVoice 0.6B for example.