Model reference · open weights

Vevo

Available as managed deployment Licence fee Audio amphion Text→speech 1 variants 34 dl/mo

Vevo is an open-weight audio or speech model from amphion. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.

Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.

What it is

Makeramphion
TypeAudio & music
TaskText→speech
Released2024-12-21
Popularity34 downloads / month
LicenceCommercial licence needed

About

What Vevo is

We present our reproduction of Vevo, a versatile zero-shot voice imitation framework with controllable timbre and style. We invite you to explore the audio samples to experience Vevo's capabilities firsthand.

We have included the following pre-trained Vevo models at Amphion:

  • Vevo-Timbre: It can conduct style-preserved voice conversion.
  • Vevo-Style: It can conduct style conversion, such as accent conversion and emotion conversion.
  • Vevo-Voice: It can conduct style-converted voice conversion.
  • Vevo-TTS: It can conduct style and timbre controllable TTS.

Besides, we also release the content tokenizer and content-style tokenizer proposed by Vevo. Notably, all these pre-trained models are trained on Emilia, containing 101k hours of speech data among six languages (English, Chinese, German, French, Japanese, and Korean).

Model Introduction

We provide the following pre-trained models:

Model NameDescription
Content TokenizerConverting speech to content tokens. It is a single codebook VQ-VAE with a vocabulary size of 32. The frame rate is 50Hz.
Content-Style TokenizerConverting speech to content-style tokens. It is a single codebook VQ-VAE with a vocabulary size of 8192. The frame rate is 50Hz.
Vq32ToVq8192Predicting content-style tokens from content tokens with an auto-regressive transformer (480M).
PhoneToVq8192Predicting content-style tokens from phone tokens with an auto-regressive transformer (740M).
Vq8192ToMelsPredicting mel-spectrogram from content-style tokens with a flow-matching transformer (330M).
VocoderPredicting audio from mel-spectrogram with a Vocos-based vocoder (250M).

You can download all pretrained checkpoints from HuggingFace or use huggingface API.

Usage

You can refer to our recipe at GitHub for more usage details. For example, to use Vevo-TTS, after you clone the Amphion github repository, you can use the script like:

import os
from huggingface_hub import snapshot_download

from models.vc.vevo.vevo_utils import *

def vevo_tts(
    src_text,
    ref_wav_path,
    timbre_ref_wav_path=None,
    output_path=None,
    ref_text=None,
    src_language="en",
    ref_language="en",
):
    if timbre_ref_wav_path is None:
        timbre_ref_wav_path = ref_wav_path

    gen_audio = inference_pipeline.inference_ar_and_fm(
        src_wav_path=None,
        src_text=src_text,
        style_ref_wav_path=ref_wav_path,
        timbre_ref_wav_path=timbre_ref_wav_path,
        style_ref_wav_text=ref_text,
        src_text_language=src_language,
        style_ref_wav_text_language=ref_language,
    )

    assert output_path is not None
    save_audio(gen_audio, output_path=output_path)

if __name__ == "__main__":
    # ===== Device =====
    device = torch.device("cuda") if torch.cuda.is_available() else torch.device("cpu")

    # ===== Content-Style Tokenizer =====
    local_dir = snapshot_download(
        repo_id="amphion/Vevo",
        repo_type="model",
        cache_dir="./ckpts/Vevo",
        allow_patterns=["tokenizer/vq8192/*"],
    )

    content_style_tokenizer_ckpt_path = os.path.join(local_dir, "tokenizer/vq8192")

    # ===== Autoregressive Transformer =====
    local_dir = snapshot_download(
        repo_id="amphion/Vevo",
        repo_type="model",
        cache_dir="./ckpts/Vevo",
        allow_patterns=["contentstyle_modeling/PhoneToVq8192/*"],
    )

    ar_cfg_path = "./models/vc/vevo/config/PhoneToVq8192.json"
    ar_ckpt_path = os.path.join(local_dir, "contentstyle_modeling/PhoneToVq8192")

    # ===== Flow Matching Transformer =====
    local_dir = snapshot_download(
        repo_id="amphion/Vevo",
        repo_type="model",
        cache_dir="./ckpts/Vevo",
        allow_patterns=["acoustic_modeling/Vq8192ToMels/*"],
    )

    fmt_cfg_path = "./models/vc/vevo/config/Vq8192ToMels.json"
    fmt_ckpt_path = os.path.join(local_dir, "acoustic_modeling/Vq8192ToMels")

    # ===== Vocoder =====
    local_dir = snapshot_download(
        repo_id="amphion/Vevo",
        repo_type="model",
        cache_dir="./ckpts/Vevo",
        allow_patterns=["acoustic_modeling/Vocoder/*"],
    )

    vocoder_cfg_path = "./models/vc/vevo/config/Vocoder.json"
    vocoder_ckpt_path = os.path.join(local_dir, "acoustic_modeling/Vocoder")

    # ===== Inference =====
    inference_pipeline = VevoInferencePipeline(
        content_style_tokenizer_ckpt_path=content_style_tokenizer_ckpt_path,
        ar_cfg_path=ar_cfg_path,
        ar_ckpt_path=ar_ckpt_path,
        fmt_cfg_path=fmt_cfg_path,
        fmt_ckpt_path=fmt_ckpt_path,
        vocoder_cfg_path=vocoder_cfg_path,
        vocoder_ckpt_path=vocoder_ckpt_path,
        device=device,
    )

    src_text = "I don't really care what you call me. I've been a silent spectator, watching species evolve, empires rise and fall. But always remember, I am mighty and enduring. Respect me and I'll nurture you; ignore me and you shall face the consequences."

    ref_wav_pat

From the published model card. Full card on the HuggingFace links in the sidebar.

How it works

How audio & music work

Audio or textinputAudio modelrecognise / synthesiseText or audiooutputSpeech-to-text turns audio into text; text-to-speech and music models turn text into audio.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys vevo for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (vevo below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/audio/transcriptions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -F model="vevo" -F file=@audio.mp3

Create an account — your API key is available in the console. 5M tokens/month currently included with every new account at launch.

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