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layout background-class body-class category title summary image author tags github-link github-id featured_image_1 featured_image_2 accelerator demo-model-link
hub_detail
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hub
researchers
Silero Voice Activity Detector
Pre-trained Voice Activity Detector
silero_logo.jpg
Silero AI Team
audio
scriptable
snakers4/silero-vad
silero_vad_performance.png
no-image
cuda-optional
 
# this assumes that you have a proper version of PyTorch already installed
pip install -q torchaudio
import torch
torch.set_num_threads(1)

from IPython.display import Audio
from pprint import pprint
# download example
torch.hub.download_url_to_file('https://models.silero.ai/vad_models/en.wav', 'en_example.wav')

model, utils = torch.hub.load(repo_or_dir='snakers4/silero-vad',
                              model='silero_vad',
                              force_reload=True)

(get_speech_timestamps,
 _, read_audio,
 *_) = utils

sampling_rate = 16000 # also accepts 8000
wav = read_audio('en_example.wav', sampling_rate=sampling_rate)
# get speech timestamps from full audio file
speech_timestamps = get_speech_timestamps(wav, model, sampling_rate=sampling_rate)
pprint(speech_timestamps)

Model Description

Silero VAD: pre-trained enterprise-grade Voice Activity Detector (VAD). Enterprise-grade Speech Products made refreshingly simple (see our STT models). Each model is published separately.

Currently, there are hardly any high quality / modern / free / public voice activity detectors except for WebRTC Voice Activity Detector (link). WebRTC though starts to show its age and it suffers from many false positives.

(!!!) Important Notice (!!!) - the models are intended to run on CPU only and were optimized for performance on 1 CPU thread. Note that the model is quantized.

Additional Examples and Benchmarks

For additional examples and other model formats please visit this link and please refer to the extensive examples in the Colab format (including the streaming examples).

References

VAD model architectures are based on similar STT architectures.