word-level timestamps in transcribe() (#869)

* word-level timestamps in `transcribe()`

* moving to `timing.py`

* numba implementation for dtw, replacing dtw-python

* triton implementation for dtw

* add test for dtw implementations

* triton implementation of median_filter

* a simple word-level timestamps test

* add scipy as dev dependency

* installs an older version of Triton if CUDA < 11.4

* fix broken merge

* loosen nvcc version match regex

* find_alignment() function

* miscellaneous improvements

* skip median filtering when the input is too small

* Expose punctuation options in cli and transcribe() (#973)

* fix merge error

* fix merge error 2

* annotating that word_timestamps is experimental

---------

Co-authored-by: ryanheise <ryan@ryanheise.com>

.github/workflows/test.yml

@@ -21,6 +21,5 @@ jobs:
       - run: conda install -n test ffmpeg python=${{ matrix.python-version }} pytorch=${{ matrix.pytorch-version }} cpuonly -c pytorch
       - uses: actions/checkout@v2
       - run: echo "$CONDA/envs/test/bin" >> $GITHUB_PATH
-      - run: pip install pytest
-      - run: pip install .
-      - run: pytest --durations=0 -vv -k 'not test_transcribe or test_transcribe[tiny] or test_transcribe[tiny.en]'
+      - run: pip install .["dev"]
+      - run: pytest --durations=0 -vv -k 'not test_transcribe or test_transcribe[tiny] or test_transcribe[tiny.en]' -m 'not requires_cuda'