# Filler Words

:::card{title="Deepgram API Playground" href="https://playground.deepgram.com/?endpoint=listen-prerecorded&filler_words=true&language=en"}
Try this feature out in our API Playground.
:::

`filler_words` _boolean_ Default: `false`

Pre-recorded Streaming\:NovaStreaming: Flux English (all available regions)

Deepgram is capable of transcribing the following filler words:

- uh
- um
- mhmm
- mm-mm
- uh-uh
- uh-huh
- nuh-uh

These words will always be transcribed with the spelling listed above, regardless of their spoken duration (i.e., Deepgram will never transcribe “uhhhh” instead of “uh”).

## Enable Feature

To enable Filler Words you can use the`filler_words` query parameter and set the value to `true`.

When `filler_words=false` or the parameter is not set, the two most common fillers, “uh” and “um”, are stripped out of the transcript to improve readability.

:::callout{intent="info"}
Currently, Filler Words are only available for Deepgram’s Nova, Nova-2 and Nova-3 general models.
:::

**Example**

```bash
curl \
  --request POST \
  --header 'Authorization: Token YOUR_DEEPGRAM_API_KEY' \
  --header 'Content-Type: audio/wav' \
  --data-binary @youraudio.wav \
  --url 'https://api.deepgram.com/v1/listen?model=nova-3&filler_words=true'
```

:::callout{intent="warning"}
Replace `YOUR_DEEPGRAM_API_KEY` with your [Deepgram API Key](https://console.deepgram.com/signup?jump=keys).
:::

## Results

Once applied, results will appear in the transcript.

| Source                                                                                                                                                                     | With Filler Words                                                                                                                                                          | Without Filler Words                                                                                                                                              |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| uh-huh or you’d want something where uh so let’s say you’re trying to fine-tune a model to something very specific um so it’s not as uh cut and dry as a more general task | uh-huh or you’d want something where uh so let’s say you’re trying to fine-tune a model to something very specific um so it’s not as uh cut and dry as a more general task | uh-huh or you’d want something where so let’s say you’re trying to fine-tune a model to something very specific so it’s not as cut and dry as a more general task |

***

## Related pages

- [Amazon SageMaker](./amazon-sagemaker-index.md)
- [Aura](./aura-index.md)
- [Changelog](../changelog.md)
- [Custom Vocabulary](./custom-vocabulary-index.md)
- [Deepgram's Docs](../index.md)
- [Deployment](./deployment-index.md)
- [Docker/Podman](./docker-podman-index.md)
- [Features](./features-index.md)
- [Flux TTS](./flux-tts-index.md)
- [Formatting](./formatting-index.md)

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