metadata

library_name: transformers
license: mit
language: fr
datasets:
  - Cnam-LMSSC/vibravox
metrics:
  - per
tags:
  - audio
  - automatic-speech-recognition
  - speech
  - phonemize
  - phoneme
model-index:
  - name: Wav2Vec2-base French finetuned for Speech-to-Phoneme by LMSSC
    results:
      - task:
          name: Speech-to-Phoneme
          type: automatic-speech-recognition
        dataset:
          name: Vibravox["body_conducted.in_ear.comply_foam_microphone"]
          type: Cnam-LMSSC/vibravox
          args: fr
        metrics:
          - name: >-
              Test PER on
              Vibravox["body_conducted.in_ear.comply_foam_microphone"] | Trained
            type: per
            value: 4.225

Model Card

Developed by: Cnam-LMSSC
Model type: Wav2Vec2ForCTC
Language: French
License: MIT
Finetuned from model: facebook/wav2vec2-base-fr-voxpopuli-v2
Finetuned dataset: body_conducted.in_ear.comply_foam_microphone audio of the speech_clean subset of Cnam-LMSSC/vibravox
Samplerate for usage: 16kHz

Output

As this model is specifically trained for a speech-to-phoneme task, the output is sequence of IPA-encoded words, without punctuation. If you don't read the phonetic alphabet fluently, you can use this excellent IPA reader website to convert the transcript back to audio synthetic speech in order to check the quality of the phonetic transcription.

Link to other phonemizer models trained on other body conducted sensors :

An entry point to all phonemizers (speech-to-phoneme ASR) models trained on different sensor data from the trained on different sensor data from the Vibravox dataset is available at https://huggingface.co/Cnam-LMSSC/vibravox_phonemizers.

Disclaimer

Each of these models has been trained for a specific non-conventional speech sensor and is intended to be used with in-domain data. The only exception is the headset microphone phonemizer, which can certainly be used for many applications using audio data captured by airborne microphones.

Please be advised that using these models outside their intended sensor data may result in suboptimal performance.

Training procedure

The model has been finetuned for 10 epochs with a constant learning rate of 1e-5. To reproduce experiment please visit jhauret/vibravox.

Inference script :

import torch, torchaudio
from transformers import AutoProcessor, AutoModelForCTC
from datasets import load_dataset

processor = AutoProcessor.from_pretrained("Cnam-LMSSC/body_conducted.in_ear.comply_foam_microphone")
model = AutoModelForCTC.from_pretrained("Cnam-LMSSC/body_conducted.in_ear.comply_foam_microphone")
test_dataset = load_dataset("Cnam-LMSSC/vibravox", "speech_clean", split="test", streaming=True)

audio_48kHz = torch.Tensor(next(iter(test_dataset))["audio.body_conducted.in_ear.comply_foam_microphone"]["array"])
audio_16kHz = torchaudio.functional.resample(audio_48kHz, orig_freq=48_000, new_freq=16_000)

inputs = processor(audio_16kHz, sampling_rate=16_000, return_tensors="pt")
logits = model(inputs.input_values).logits
predicted_ids = torch.argmax(logits,dim = -1)
transcription = processor.batch_decode(predicted_ids)

print("Phonetic transcription : ", transcription)

Test Results:

In the table below, we report the Phoneme Error Rate (PER) of the model on the several microphones and subset of Vibravox:

Test Set	PER
Vibravox/speech_clean/airborne.mouth_headworn.reference_microphone	??%
Vibravox/speech_clean/body_conducted.forehead.miniature_accelerometer	??%
Vibravox/speech_clean/body_conducted.in_ear.comply_foam_microphone	4.225%
Vibravox/speech_clean/body_conducted.in_ear.rigid_earpiece_microphone	??%
Vibravox/speech_clean/body_conducted.throat.piezoelectric_sensor	??%
Vibravox/speech_clean/body_conducted.temple.contact_microphone	??%
Vibravox/speech_noisy/airborne.mouth_headworn.reference_microphone	??%
Vibravox/speech_noisy/body_conducted.forehead.miniature_accelerometer	??%
Vibravox/speech_noisy/body_conducted.in_ear.comply_foam_microphone	??%
Vibravox/speech_noisy/body_conducted.in_ear.rigid_earpiece_microphone	??%
Vibravox/speech_noisy/body_conducted.throat.piezoelectric_sensor	??%
Vibravox/speech_noisy/body_conducted.temple.contact_microphone	??%