> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pixeltable.com/llms.txt
> Use this file to discover all available pages before exploring further.

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# whisper

> <a href="https://github.com/pixeltable/pixeltable/blob/main/pixeltable/functions/whisper.py#L0" id="viewSource" target="_blank" rel="noopener noreferrer"><img src="https://img.shields.io/badge/View%20Source%20on%20Github-blue?logo=github&labelColor=gray" alt="View Source on GitHub" style={{ display: 'inline', margin: '0px' }} noZoom /></a>

# <span style={{ 'color': 'gray' }}>module</span>  pixeltable.functions.whisper

Pixeltable UDFs
that wraps the OpenAI Whisper library.

This UDF will cause Pixeltable to invoke the relevant model locally. In order to use it, you must
first `pip install openai-whisper`.

## <span style={{ 'color': 'gray' }}>udf</span>  transcribe()

```python Signature theme={null}
@pxt.udf
transcribe(
    audio: pxt.Audio,
    *,
    model: pxt.String,
    temperature: pxt.Json[(Float = (0.0, 0.2, 0.4, 0.6, 0.8, 1.0), compression_ratio_threshold: pxt.Float | None = 2.4, logprob_threshold: pxt.Float | None = -1.0, no_speech_threshold: pxt.Float | None = 0.6, condition_on_previous_text: pxt.Bool = True, initial_prompt: pxt.String | None = None, word_timestamps: pxt.Bool = False, prepend_punctuations: pxt.String = '"\'“¿([{-', append_punctuations: pxt.String = '"\'.。,，!！?？:：”)]}、', decode_options: pxt.Json | None = None
) -> pxt.Json
```

Transcribe an audio file using Whisper.

This UDF runs a transcription model *locally* using the Whisper library,
equivalent to the Whisper `transcribe` function, as described in the
[Whisper library documentation](https://github.com/openai/whisper).

**Requirements:**

* `pip install openai-whisper`

**Parameters:**

* **`audio`** (`pxt.Audio`): The audio file to transcribe.
* **`model`** (`pxt.String`): The name of the model to use for transcription.

**Returns:**

* `pxt.Json`: A dictionary containing the transcription and various other metadata.

**Examples:**

Add a computed column that applies the model `base.en` to an existing Pixeltable column `tbl.audio` of the table `tbl`:

```python  theme={null}
tbl.add_computed_column(result=transcribe(tbl.audio, model='base.en'))
```


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