83c742f1a7
whisper : add option to speed up the audio tempo by x2
...
Using a Phase Vocoder for speeding up the audio tempo by scaling down
the frequencies in the frequency domain.
This reduces the computation in the Encoder by a factor of 2.
The transcription accuracy is degraded, but for slow to normal speech -
it seems to be still very good.
I think this can find application for real-time transcription - i.e. the
"stream" example.
2 years ago
c30bffc8a5
ref #22 : add "duration" option
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Can be used to partially process a recording
2 years ago
d5afebd37c
whisper : token-level timestamp refactoring ( #49 , #120 )
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This turned out pretty good overall. The algorithm has been moved from
main.cpp to whisper.cpp and can be reused for all subtitles types. This
means that now you can specify the maximum length of the generated
lines. Simply provide the "-ml" argument specifying the max length in
number of characters
2 years ago
57fb46f307
main : add option for word-leve timestamps (very experimental)
2 years ago
eba62e0fa1
close #113 : fix struct whisper_token_data
2 years ago
dec40be58f
parallel : print time of audio boundaries + fix timings
2 years ago
0b2dc3c82c
parallel : working
2 years ago
85d6e1e1e7
main : fix sampling time + add max_context parameter
2 years ago
72e9cdd6bf
parallel : adding tool for parallel transformer inference
2 years ago
34bb3ab0cf
ggml : add system info functions
2 years ago
7affd309d3
whisper : add new-segment callback
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Can be used to process new segments as they are being generated.
Sample usage in main, for printing the resulting segments during the
inference.
2 years ago
31ff0c6a1f
wip : experimental color coding of tokens based on probabilities
2 years ago
7eeef0358a
ref #52 : improve greedy sampling strategy
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Force timestamp token to be sampled if the probability sum over all
timestamp tokens is above the probability of any other token
2 years ago
2d171ced32
close #32 : add comment about thread-safety of the C-style API
2 years ago
e30cf83158
ref #57 , #62 , #63 : remove unions in C-api + remove designated initializers
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We are not ready for designated initializers - many compilers do not
support this C++ feature yet, so removing it's non-trivial usages.
2 years ago
9d5723435f
ref #35 : add <stdbool.h> to whisper.h
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"bool" type is not implicitly defined for some compilers.
2 years ago
9bbca3110f
ref #9 : add API documentation in whisper.h
2 years ago
2f069335ab
Adding sanitizer tests
2 years ago
481cd685d5
ref #10 : option to keep context in "stream" example
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Seems the results become worse when we keep the context, so by default
this is not enabled
2 years ago
7787b878e1
ref #16 , #22 : add "offset" argument
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Allows to start processing the input audio at some offset from the
beginning. Useful for splitting a long job into multiple tasks.
2 years ago
6814cc9b02
Improve result printing
2 years ago
eba33adadd
Extend C-style API with full inference methods
2 years ago
6b77124e01
Initial C-style interface for whisper.cpp
2 years ago
Georgi Gerganov