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48 lines
1.7 KiB
48 lines
1.7 KiB
# command
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This is a basic Voice Assistant example that accepts voice commands from the microphone.
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More info is available in [issue #171](https://github.com/ggerganov/whisper.cpp/issues/171).
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```bash
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# Run with default arguments and small model
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./command -m ./models/ggml-small.en.bin -t 8
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# On Raspberry Pi, use tiny or base models + "-ac 768" for better performance
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./command -m ./models/ggml-tiny.en.bin -ac 768 -t 3 -c 0
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```
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https://user-images.githubusercontent.com/1991296/204038393-2f846eae-c255-4099-a76d-5735c25c49da.mp4
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Web version: [examples/command.wasm](/examples/command.wasm)
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## Guided mode
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"Guided mode" allows you to specify a list of commands (i.e. strings) and the transcription will be guided to classify your command into one from the list. This can be useful in situations where a device is listening only for a small subset of commands.
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Initial tests show that this approach might be extremely efficient in terms of performance, since it integrates very well with the "partial Encoder" idea from #137.
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```bash
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# Run in guided mode, the list of allowed commands is in commands.txt
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./command -m ./models/ggml-base.en.bin -cmd ./examples/command/commands.txt
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# On Raspberry Pi, in guided mode you can use "-ac 128" for extra performance
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./command -m ./models/ggml-tiny.en.bin -cmd ./examples/command/commands.txt -ac 128 -t 3 -c 0
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```
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https://user-images.githubusercontent.com/1991296/207435352-8fc4ed3f-bde5-4555-9b8b-aeeb76bee969.mp4
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## Building
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The `command` tool depends on SDL2 library to capture audio from the microphone. You can build it like this:
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```bash
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# Install SDL2 on Linux
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sudo apt-get install libsdl2-dev
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# Install SDL2 on Mac OS
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brew install sdl2
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make command
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```
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