---
license: other
library_name: audio.cpp
pipeline_tag: text-to-speech
tags:
- gguf
- audio.cpp
- quantized
- text-to-speech
- automatic-speech-recognition
- voice-conversion
- text-to-audio
- audio-to-audio
- source-separation
- speaker-diarization
- speech
base_model_relation: quantized
base_model:
- ACE-Step/Ace-Step1.5
- ACE-Step/acestep-v15-base
- Aratako/Irodori-TTS-500M-v3
- Aratako/Irodori-TTS-600M-v3-VoiceDesign
- Aratako/MioCodec-25Hz-44.1kHz-v2
- Aratako/MioTTS-1.7B
- Aratako/Semantic-DACVAE-Japanese-32dim
- fishaudio/s2-pro
- HeartMuLa/HeartCodec-oss-20260123
- HeartMuLa/HeartMuLa-oss-3B
- HeartMuLa/HeartMuLaGen
- OpenBMB/VoxCPM2
- OpenMOSS-Team/MOSS-Audio-Tokenizer-Nano
- OpenMOSS-Team/MOSS-Audio-Tokenizer-v2
- OpenMOSS-Team/MOSS-TTS-Local-Transformer-v1.5
- OpenMOSS-Team/MOSS-TTS-Nano-100M
- Qwen/Qwen3-ASR-0.6B
- Qwen/Qwen3-ASR-1.7B-hf
- Qwen/Qwen3-ForcedAligner-0.6B
- Qwen/Qwen3-TTS-12Hz-1.7B-Base
- Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice
- Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign
- Qwen/Qwen3-TTS-Tokenizer-12Hz
- ResembleAI/chatterbox
- RMSnow/Vevo2
- bosonai/higgs-audio-v3-stt
- bosonai/higgs-audio-v3-tts-4b
- k2-fsa/OmniVoice
- kyutai/pocket-tts
- llm-jp/llm-jp-3-150m
- microsoft/VibeVoice-1.5B
- microsoft/VibeVoice-ASR
- mistralai/Voxtral-Mini-4B-Realtime-2602
- mlx-community/SeedVC-MLX
- mlx-community/index-tts2-mlx
- mlx-community/mel-roformer-mlx
- mlx-community/supertonic-3-mlx
- mlx-community/wavlm-base-plus-mlx
- nvidia/diar_sortformer_4spk-v1
- nvidia/nemotron-3.5-asr-streaming-0.6b
- stabilityai/stable-audio-3-medium
- stabilityai/stable-audio-3-small-music
- stabilityai/stable-audio-3-small-sfx
---

# audio.cpp GGUF Model Packages

This directory contains audio.cpp-native GGUF conversions of multiple speech models. These files are intended for use with [audio.cpp](https://github.com/0xShug0/audio.cpp).

For conversion details, supported layouts, direct-file loading, sidecar embedding, and the latest compatibility notes, see the audio.cpp GGUF guide:

- https://github.com/0xShug0/audio.cpp/blob/main/docs/gguf.md

!!! Automated audio checks are intentionally strict and may flag length, log-mel, or transcript drift that can still sound acceptable to human listeners. Validate the exact file, backend, and route you plan to use. These converted weights are provided as-is; use them at your own risk.


## Files

`Tested` summarizes the current audio.cpp path-test status. See the GGUF guide above
for the full matrix and drift notes.

| Directory | Files | audio.cpp family | Tested | Original model license |
|---|---|---|---|---|
| `ACE-Step1.5-GGUF` | `base/ace-step-1.5-base-bf16.gguf`, `base/ace-step-1.5-base-q8_0.gguf`, `turbo/ace-step-1.5-turbo-bf16.gguf`, `turbo/ace-step-1.5-turbo-q8_0.gguf` | `ace_step` | 16-bit + Q8 drift | See original model package |
| `Chatterbox-GGUF` | `chatterbox-f16.gguf`, `chatterbox-q8_0.gguf` | `chatterbox` | 16-bit + Q8 ASR-match drift | MIT |
| `Citrinet-ASR-GGUF` | `citrinet-asr-q8_0.gguf` | `citrinet_asr` | Q8 pass | CC-BY-4.0 |
| `Fish-Audio-S2-Pro-GGUF` | `fish-audio-s2-pro-bf16.gguf`, `fish-audio-s2-pro-q8_0.gguf` | `fish_audio` | 16-bit + Q8 pass | See original model package |
| `HeartMuLa-GGUF` | `heartmula-f16.gguf`, `heartmula-q8_0.gguf` | `heartmula` | 16-bit + Q8 drift | Apache-2.0 |
| `HTDemucs-GGUF` | `htdemucs-f16.gguf`, `htdemucs-q8_0.gguf` | `htdemucs` | 16-bit pass, Q8 drift | See original model package |
| `Higgs-Audio-v3-STT-GGUF` | `higgs-audio-v3-stt-f16.gguf`, `higgs-audio-v3-stt-q8_0.gguf` | `higgs_audio_stt` | 16-bit + Q8 pass | Apache-2.0 |
| `Higgs-Audio-v3-TTS-4B-GGUF` | `higgs-audio-v3-tts-4b-bf16.gguf`, `higgs-audio-v3-tts-4b-q8_0.gguf` | `higgs_audio_tts` | 16-bit + Q8 pass | See original model package |
| `IndexTTS2-GGUF` | `index-tts2-orig.gguf`, `index-tts2-f16.gguf`, `index-tts2-q8_0.gguf` | `index_tts2` | orig + 16-bit pass/drift, Q8 ASR-match drift | bilibili Model Use License Agreement |
| `Irodori-TTS-500M-v3-GGUF` | `irodori-tts-500m-v3-f16.gguf`, `irodori-tts-500m-v3-q8_0.gguf` | `irodori_tts` | 16-bit pass, Q8 drift | MIT |
| `Irodori-TTS-600M-v3-VoiceDesign-GGUF` | `irodori-tts-600m-v3-voicedesign-f16.gguf`, `irodori-tts-600m-v3-voicedesign-q8_0.gguf` | `irodori_tts` | 16-bit pass, Q8 drift | MIT |
| `MOSS-TTS-Local-v1.5-GGUF` | `moss-tts-local-v1.5-bf16.gguf`, `moss-tts-local-v1.5-q8_0.gguf` | `moss_tts_local` | 16-bit pass, Q8 ASR-match drift | Apache-2.0 |
| `MOSS-TTS-Nano-100M-GGUF` | `moss-tts-nano-100m-bf16.gguf`, `moss-tts-nano-100m-q8_0.gguf` | `moss_tts_nano` | 16-bit pass, Q8 ASR-match drift | Apache-2.0 |
| `Mel-Band-RoFormer-GGUF` | `mel-band-roformer-f16.gguf`, `mel-band-roformer-q8_0.gguf` | `mel_band_roformer` | 16-bit + Q8 drift | MIT |
| `MioCodec-25Hz-44.1kHz-v2-GGUF` | `miocodec-25hz-44khz-v2-orig.gguf`, `miocodec-25hz-44khz-v2-f16.gguf`, `miocodec-25hz-44khz-v2-q8_0.gguf` | `miocodec` | orig pass, 16-bit + Q8 drift | MIT |
| `MioTTS-1.7B-GGUF` | `miotts-1.7b-orig.gguf`, `miotts-1.7b-bf16.gguf`, `miotts-1.7b-q8_0.gguf` | `miotts` | orig pass, 16-bit drift, Q8 ASR-match drift | Apache-2.0 |
| `Nemotron-3.5-ASR-Streaming-0.6B-GGUF` | `nemotron-3.5-asr-streaming-0.6b-f16.gguf`, `nemotron-3.5-asr-streaming-0.6b-q8_0.gguf` | `nemotron_asr` | 16-bit pass, Q8 minor filler drift | OpenMDW-1.1 |
| `OmniVoice-GGUF` | `omnivoice-bf16.gguf`, `omnivoice-f16.gguf`, `omnivoice-q8_0.gguf` | `omnivoice` | 16-bit + Q8 drift | Apache-2.0 |
| `PocketTTS-GGUF` | `english/`, `german/`, `italian/`, `portuguese/`, `spanish/` each contain `bf16` and `q8_0` GGUFs | `pocket_tts` | 16-bit pass, Q8 drift | See original model package |
| `Qwen3-ASR-0.6B-GGUF` | `qwen3-asr-0.6b-f16.gguf`, `qwen3-asr-0.6b-q8_0.gguf` | `qwen3_asr` | 16-bit + Q8 pass | Apache-2.0 |
| `Qwen3-ASR-1.7B-GGUF` | `qwen3-asr-1.7b-f16.gguf`, `qwen3-asr-1.7b-q8_0.gguf` | `qwen3_asr` | 16-bit + Q8 pass | Apache-2.0 |
| `Qwen3-ForcedAligner-0.6B-GGUF` | `qwen3-forced-aligner-0.6b-f16.gguf`, `qwen3-forced-aligner-0.6b-q8_0.gguf` | `qwen3_forced_aligner` | 16-bit + Q8 pass | Apache-2.0 |
| `Qwen3-TTS-12Hz-1.7B-Base-GGUF` | `qwen3-tts-12hz-1.7b-base-orig.gguf`, `qwen3-tts-12hz-1.7b-base-bf16.gguf`, `qwen3-tts-12hz-1.7b-base-q8_0.gguf` | `qwen3_tts` | orig pass, 16-bit + Q8 ASR-match drift | Apache-2.0 |
| `Qwen3-TTS-12Hz-1.7B-CustomVoice-GGUF` | `qwen3-tts-12hz-1.7b-customvoice-bf16.gguf`, `qwen3-tts-12hz-1.7b-customvoice-q8_0.gguf` | `qwen3_tts` | 16-bit + Q8 ASR-match drift | Apache-2.0 |
| `Qwen3-TTS-12Hz-1.7B-VoiceDesign-GGUF` | `qwen3-tts-12hz-1.7b-voicedesign-bf16.gguf`, `qwen3-tts-12hz-1.7b-voicedesign-q8_0.gguf` | `qwen3_tts` | 16-bit + Q8 ASR-match drift | Apache-2.0 |
| `SeedVC-MLX-GGUF` | `seed-vc-mlx-orig.gguf`, `seed-vc-mlx-f16.gguf`, `seed-vc-mlx-q8_0.gguf` | `seed_vc` | 16-bit + Q8 drift | GPL-3.0 |
| `Sortformer-Diar-4spk-v1-GGUF` | `sortformer-diar-4spk-v1-f16.gguf`, `sortformer-diar-4spk-v1-q8_0.gguf` | `sortformer_diar` | 16-bit + Q8 pass | CC-BY-NC-4.0 |
| `Stable-Audio-3-Medium-GGUF` | `stable-audio-3-medium-f16.gguf`, `stable-audio-3-medium-q8_0.gguf` | `stable_audio` | 16-bit + Q8 drift | Stability AI Community License |
| `Stable-Audio-3-Small-Music-GGUF` | `stable-audio-3-small-music-f16.gguf`, `stable-audio-3-small-music-q8_0.gguf` | `stable_audio` | 16-bit + Q8 drift | Stability AI Community License |
| `Stable-Audio-3-Small-SFX-GGUF` | `stable-audio-3-small-sfx-f16.gguf`, `stable-audio-3-small-sfx-q8_0.gguf` | `stable_audio` | 16-bit + Q8 drift | Stability AI Community License |
| `Supertonic-3-GGUF` | `supertonic-3-orig.gguf`, `supertonic-3-f16.gguf`, `supertonic-3-q8_0.gguf` | `supertonic` | F32/orig pass; f16 not tested; Q8 unsupported dtype | BigScience Open RAIL-M |
| `Vevo2-GGUF` | `vevo2-orig.gguf`, `vevo2-f16.gguf`, `vevo2-q8_0.gguf` | `vevo2` | orig + 16-bit pass/drift; Q8 mixed route drift | See original model package |
| `VibeVoice-1.5B-GGUF` | `vibevoice-1.5b-bf16.gguf`, `vibevoice-1.5b-q8_0.gguf` | `vibevoice` | 16-bit pass, Q8 drift | MIT |
| `VibeVoice-ASR-GGUF` | `vibevoice-asr-f16.gguf`, `vibevoice-asr-q8_0.gguf` | `vibevoice_asr` | 16-bit + Q8 pass | MIT |
| `VoxCPM2-GGUF` | `voxcpm2-orig.gguf`, `voxcpm2-bf16.gguf`, `voxcpm2-q8_0.gguf` | `voxcpm2` | orig pass, 16-bit + Q8 ASR-match drift | Apache-2.0 |
| `Voxtral-Mini-4B-Realtime-2602-GGUF` | `voxtral-mini-4b-realtime-2602-bf16.gguf`, `voxtral-mini-4b-realtime-2602-q8_0.gguf` | `voxtral_realtime` | 16-bit + Q8 pass | Apache-2.0 |

## Q8 Notes

- Chatterbox Q8 is intentionally mixed type. Graph-sensitive scalar, norm, bias,
  and side tensors stay in non-Q8 types while matmul-compatible weights are
  quantized.
- PocketTTS Q8 keeps the four `flow_lm.flow_net.time_embed.*.mlp.{0,2}.weight`
  tensors in Q8 in addition to the default converter selection. `conditioner.embed`,
  `cond_embed`, and Mimi conv tensors are not forced to Q8 because tested outputs
  drifted or the current conv path casts quantized conv weights back to F32.

## Usage

Pass a GGUF file directly as `--model`:

```bash
audiocpp_cli --task tts --family supertonic --model Supertonic-3-GGUF/supertonic-3-orig.gguf --backend cuda --language en --text "Hello." --voice-id M1 --out out.wav
```

For ASR:

```bash
audiocpp_cli --task asr --family qwen3_asr --model Qwen3-ASR-0.6B-GGUF/qwen3-asr-0.6b-f16.gguf --backend cuda --audio speech.wav --text "" --text-out transcript.txt
```

## License

Each GGUF file is a converted form of its original model. Use and redistribution are governed by the corresponding original model license listed above. Please review the original model card and license terms before using or redistributing any converted weights.