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'''
# Realtime (Ultralow-latency) Voice Activity Detection (VAD) using WebRTC VAD
v3.2
π 17 Apr 2024

## Usage
```python
    def on_segment(segment):  # np.array of np.int16
        print(f'☏ CALLBACK: Got segment: {len(segment)} frames')

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'''
Adapted by π 15 Apr 2024
    from https://github.com/davabase/whisper_real_time/blob/master/transcribe_demo.py
    ... which appears to have been itself pilfered from:
        https://github.com/JihyeokKim/whisper_ros/tree/master/whisper_ros/src

To run on macOS:
    - `brew install ffmpeg portaudio`
    - Create requirements.txt:
    ```

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🟢 Do all spack installs on a worker node This way it's compiling for the architecture that will be RUNNING these programs

$ srun --pty --cpus-per-task=32 --mem=64G --time=08:00:00 --partition=gpu --gres=gpu:0 /bin/bash

🟢 Clone spack (taken from their README.md) I'm installing into /path/to/spack, so spack will be /path/to/spack/spack

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