mirror of
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131 lines
6.1 KiB
Markdown
131 lines
6.1 KiB
Markdown
[](mailto:hello@silero.ai) [](https://t.me/joinchat/Bv9tjhpdXTI22OUgpOIIDg) [](https://github.com/snakers4/silero-vad/blob/master/LICENSE)
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[](https://pytorch.org/hub/snakers4_silero-vad/) (coming soon)
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[](https://colab.research.google.com/github/snakers4/silero-vad/blob/master/silero-vad.ipynb)
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- [Silero VAD](#silero-vad)
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- [Getting Started](#getting-started)
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- [PyTorch](#pytorch)
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- [ONNX](#onnx)
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- [Metrics](#metrics)
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- [Performance Metrics](#performance-metrics)
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- [Quality Metrics](#quality-metrics)
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- [FAQ](#faq)
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- [How VAD Works](#how-vad-works)
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- [VAD Quality Metrics Methodology](#vad-quality-metrics-methodology)
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- [How Number Detector Works](#how-number-detector-works)
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- [How Language Classifier Works](#how-language-classifier-works)
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- [Contact](#contact)
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- [Get in Touch](#get-in-touch)
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- [Commercial Inquiries](#commercial-inquiries)
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# Silero VAD
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`Single Image Why our VAD is better than WebRTC`
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Silero VAD: pre-trained enterprise-grade Voice Activity Detector (VAD), Number Detector and Language Classifier.
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Enterprise-grade Speech Products made refreshingly simple (see our [STT](https://github.com/snakers4/silero-models) models).
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Currently, there are hardly any high quality / modern / free / public voice activity detectors except for WebRTC Voice Activity Detector ([link](https://github.com/wiseman/py-webrtcvad)).
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Also in enterprise it is crucial to be able to anonymize large-scale spoken corpora (i.e. remove personal data). Typically personal data is considered to be private / sensitive if it contains (i) a name (ii) some private ID. Name recognition is highly subjective and would depend on locale and business case, but Voice Activity and Number detections are quite general tasks.
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**Key features:**
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- Modern, portable;
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- Lowe memory footprint;
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- Superior metrics to WebRTC;
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- Trained on huge spoken corpora and noise / sound libraries;
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- Slower than WebRTC, but fast enough for IOT / edge / mobile applications;
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**Typical use cases:**
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- Spoken corpora anonymization;
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- Voice activity detection for IOT / edge / mobile use cases;
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- Data cleaning and preparation, number and voice detection in general;
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## Getting Started
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The models are small enough to be included directly into this repository. Newer models will supersede older models directly.
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Currently we provide the following functionality:
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| PyTorch | ONNX | VAD | Number Detector | Language Clf | Languages | Colab |
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|-------------------|--------------------|---------------------|-----------------|--------------|------------------------|-------|
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| :heavy_check_mark:| :heavy_check_mark: | :heavy_check_mark: | | | `ru`, `en`, `de`, `es` | [](https://colab.research.google.com/github/snakers4/silero-vad/blob/master/silero-vad.ipynb) |
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**Version history:**
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| Version | Date | Comment |
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|---------|-------------|---------------------------------------------------|
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| `v1` | 2020-12-15 | Initial release |
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| `v2` | coming soon | Add Number Detector or Language Classifier heads |
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### PyTorch
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[](https://colab.research.google.com/github/snakers4/silero-vad/blob/master/silero-vad.ipynb)
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[](https://pytorch.org/hub/snakers4_silero-vad/) (coming soon)
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```python
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TBD
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```
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### ONNX
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[](https://colab.research.google.com/github/snakers4/silero-vad/blob/master/silero-vad.ipynb)
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You can run our model everywhere, where you can import the ONNX model or run ONNX runtime.
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```python
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TBD
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```
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## Metrics
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### Performance Metrics
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Speed metrics here.
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### Quality Metrics
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We use random 0.25 second audio chunks to validate on. Speech to Non-speech ratio among chunks ~50/50, speech chunks are carved from real audios in four different languages (English, Russian, Spanish, German), then random random background noise is applied to some of them.
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Since our models were trained on chunks of the same length, model's output is just one float number from 0 to 1 - **speech probability**. We use speech probabilities as tresholds for precision-recall curve.
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[Webrtc](https://github.com/wiseman/py-webrtcvad) splits audio into frames, each frame has corresponding number (0 **or** 1). We use 30ms frames for webrtc predicts, so each 0.25 second chunk is splitted into 8 frames, their **mean** value is used as a treshold for plot.
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## FAQ
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### How VAD Works
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Bla-bla, 300ms, 15ms latency on 1 thread, see examples (naive, streaming).
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### VAD Quality Metrics Methodology
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TBD
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### How Number Detector Works
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TBD
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### How Language Classifier Works
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TBD
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## Contact
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### Get in Touch
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Try our models, create an [issue](https://github.com/snakers4/silero-vad/issues/new), start a [discussion](https://github.com/snakers4/silero-vad/discussions/new), join our telegram [chat](https://t.me/joinchat/Bv9tjhpdXTI22OUgpOIIDg), [email](mailto:hello@silero.ai) us.
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### Commercial Inquiries
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Please see our [wiki](https://github.com/snakers4/silero-models/wiki) and [tiers](https://github.com/snakers4/silero-models/wiki/Licensing-and-Tiers) for relevant information and [email](mailto:hello@silero.ai) us directly.
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