Neural speaker diarization with pyannote.audio

pyannote.audio is an open-source toolkit written in Python for speaker diarization. Based on PyTorch machine learning framework, it provides a set of trainable end-to-end neural building blocks that can be combined and jointly optimized to build speaker diarization pipelines.

TL;DR

# 1. visit hf.co/pyannote/speaker-diarization and hf.co/pyannote/segmentation and accept user conditions (only if requested)
# 2. visit hf.co/settings/tokens to create an access token (only if you had to go through 1.)
# 3. instantiate pretrained speaker diarization pipeline
from pyannote.audio import Pipeline
pipeline = Pipeline.from_pretrained("pyannote/speaker-diarization",
                                    use_auth_token="ACCESS_TOKEN_GOES_HERE")

# 4. apply pretrained pipeline
diarization = pipeline("audio.wav")

# 5. print the result
for turn, _, speaker in diarization.itertracks(yield_label=True):
    print(f"start={turn.start:.1f}s stop={turn.end:.1f}s speaker_{speaker}")
# start=0.2s stop=1.5s speaker_0
# start=1.8s stop=3.9s speaker_1
# start=4.2s stop=5.7s speaker_0
# ...

What's new in pyannote.audio 2.x?

For version 2.x of pyannote.audio, I decided to rewrite almost everything from scratch. Highlights of this release are:

• 🤯 much better performance (see Benchmark)
• 🐍 Python-first API
• 🤗 pretrained pipelines (and models) on 🤗 model hub
• ⚡ multi-GPU training with pytorch-lightning
• 🎛️ data augmentation with torch-audiomentations
• 💥 Prodigy recipes for model-assisted audio annotation

Installation

Only Python 3.8+ is officially supported (though it might work with Python 3.7)

conda create -n pyannote python=3.8
conda activate pyannote

# pytorch 1.11 is required for speechbrain compatibility
# (see https://pytorch.org/get-started/previous-versions/#v1110)
conda install pytorch==1.11.0 torchvision==0.12.0 torchaudio==0.11.0 -c pytorch

pip install pyannote.audio

Documentation

• Changelog
• Frequently asked questions
• Models
  • Available tasks explained
  • Applying a pretrained model
  • Training, fine-tuning, and transfer learning
• Pipelines
  • Available pipelines explained
  • Applying a pretrained pipeline
  • Adapting a pretrained pipeline to your own data
  • Training a pipeline
• Contributing
  • Adding a new model
  • Adding a new task
  • Adding a new pipeline
  • Sharing pretrained models and pipelines
• Blog
  • 2022-12-02 > "How I reached 1st place at Ego4D 2022, 1st place at Albayzin 2022, and 6th place at VoxSRC 2022 speaker diarization challenges"
  • 2022-10-23 > "One speaker segmentation model to rule them all"
  • 2021-08-05 > "Streaming voice activity detection with pyannote.audio"
• Miscellaneous
  • Training with pyannote-audio-train command line tool
  • Annotating your own data with Prodigy
  • Speaker verification
  • Visualization and debugging

Benchmark

Out of the box, pyannote.audio default speaker diarization pipeline is expected to be much better (and faster) in v2.x than in v1.1. Those numbers are diarization error rates (in %)

Dataset \ Version	v1.1	v2.0	v2.1.1 (finetuned)
AISHELL-4	-	14.6	14.1 (14.5)
AliMeeting (channel 1)	-	-	27.4 (23.8)
AMI (IHM)	29.7	18.2	18.9 (18.5)
AMI (SDM)	-	29.0	27.1 (22.2)
CALLHOME (part2)	-	30.2	32.4 (29.3)
DIHARD 3 (full)	29.2	21.0	26.9 (21.9)
VoxConverse (v0.3)	21.5	12.6	11.2 (10.7)
REPERE (phase2)	-	12.6	8.2 ( 8.3)
This American Life	-	-	20.8 (15.2)

Citations

If you use pyannote.audio please use the following citations:

@inproceedings{Bredin2020,
  Title = {{pyannote.audio: neural building blocks for speaker diarization}},
  Author = {{Bredin}, Herv{\'e} and {Yin}, Ruiqing and {Coria}, Juan Manuel and {Gelly}, Gregory and {Korshunov}, Pavel and {Lavechin}, Marvin and {Fustes}, Diego and {Titeux}, Hadrien and {Bouaziz}, Wassim and {Gill}, Marie-Philippe},
  Booktitle = {ICASSP 2020, IEEE International Conference on Acoustics, Speech, and Signal Processing},
  Year = {2020},
}

@inproceedings{Bredin2021,
  Title = {{End-to-end speaker segmentation for overlap-aware resegmentation}},
  Author = {{Bredin}, Herv{\'e} and {Laurent}, Antoine},
  Booktitle = {Proc. Interspeech 2021},
  Year = {2021},
}

Support

For commercial enquiries and scientific consulting, please contact me.

Development

The commands below will setup pre-commit hooks and packages needed for developing the pyannote.audio library.

pip install -e .[dev,testing]
pre-commit install

Tests rely on a set of debugging files available in test/data directory. Set PYANNOTE_DATABASE_CONFIG environment variable to test/data/database.yml before running tests:

PYANNOTE_DATABASE_CONFIG=tests/data/database.yml pytest