> For the complete documentation index, see [llms.txt](https://docs.pletor.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pletor.ai/build-your-system/nodes/ai-nodes/ai-audio.md).

# AI Audio

Generate speech, sound effects, and lip-synced content using AI audio models.

### Available audio nodes

| Node                  | What it does                                                 | Key inputs                       |
| --------------------- | ------------------------------------------------------------ | -------------------------------- |
| **Generate audio**    | Create audio from a text prompt, from voices to sound design | Audio description                |
| **Generate speech**   | Convert text to natural-sounding speech                      | Text + voice selection           |
| **Generate music**    | Generate music from a text prompt                            | Music description                |
| **Add sound effects** | Generate and add AI sound effects to videos                  | Source video + sound description |
| **Voice changer**     | Transform a voice while keeping the original speech          | Source audio + voice selection   |
| **Extract audio**     | Get an audio file from a video                               | Source video                     |
| **Transcribe**        | Convert speech into written text                             | Source audio or video            |
| **Isolate sound**     | Separate a target sound from the rest                        | Source audio + sound to isolate  |

#### Tips for AI Audio nodes

* **Custom voices (contact us)**: upload your own voice samples to create a consistent brand voice across all your audio content.
* **Chain speech → lipsync**: Generate AI Speech to create a voiceover, then feed it into Generate Lipsync to animate a character delivering the script.