Model reference · open weights

hubert-korean

Available as managed deployment Audio team-lucid Speech→text 1 variants 31k dl/mo

hubert-korean is an open-weight audio or speech model from team-lucid. 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

Released byteam-lucid
TypeAudio & music
TaskSpeech→text
Parameters (lead)94M
Runs withtransformers
Released2023-05-29
Popularity31k downloads / month
LicenceOpen weights

About

What hubert-korean is

Model Details

Hubert(Hidden-Unit BERT)는 Facebook에서 제안한 Speech Representation Learning 모델입니다. Hubert는 기존의 음성 인식 모델과 달리, 음성 신호를 raw waveform에서 바로 학습하는 self-supervised learning 방식을 사용합니다.

이 연구는 구글의 TPU Research Cloud(TRC)를 통해 지원받은 Cloud TPU로 학습되었습니다.

Read the full model card

Model Description

How to Get Started with the Model

Pytorch

import torch
from transformers import HubertModel

model = HubertModel.from_pretrained("team-lucid/hubert-base-korean")

wav = torch.ones(1, 16000)
outputs = model(wav)
print(f"Input:   {wav.shape}")  # [1, 16000]
print(f"Output:  {outputs.last_hidden_state.shape}")  # [1, 49, 768]

JAX/Flax

import jax.numpy as jnp
from transformers import FlaxAutoModel

model = FlaxAutoModel.from_pretrained("team-lucid/hubert-base-korean", trust_remote_code=True)

wav = jnp.ones((1, 16000))
outputs = model(wav)
print(f"Input:   {wav.shape}")  # [1, 16000]
print(f"Output:  {outputs.last_hidden_state.shape}")  # [1, 49, 768]

Training Details

Training Data

해당 모델은 과학기술정보통신부의 재원으로 한국지능정보사회진흥원의 지원을 받아 구축된 자유대화 음성(일반남여), 다화자 음성합성 데이터, 방송 콘텐츠 대화체 음성인식 데이터 에서 약 4,000시간을 추출해 학습되었습니다.

Training Procedure

원 논문과 동일하게 MFCC 기반으로 Base 모델을 학습한 다음, 500 cluster로 k-means를 수행해 다시 Base와 Large 모델을 학습했습니다.

Training Hyperparameters
HyperparameterBaseLarge
Warmup Steps32,00032,000
Learning Rates5e-41.5e-3
Batch Size128128
Weight Decay0.010.01
Max Steps400,000400,000
Learning Rate Decay0.10.1
\(Adam\beta_1\)0.90.9
\(Adam\beta_2\)0.990.99

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

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys hubert-korean for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (hubert-korean 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="hubert-korean" -F file=@audio.mp3

Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.

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