---
title: "What is an audio embedding?"
description: "An audio embedding is a vector for a clip or a transcript window, used to find similar speech or sound rather than only exact words."
url: "https://pixeltable.com/learn/what-is-an-audio-embedding"
updated: "2026-09-29"
vertical: "Audio"
doc: "https://docs.pixeltable.com/datastore/embedding-index"
---

# What is an audio embedding?

An audio embedding is a vector for a clip or a transcript window, used to find similar speech or sound rather than only exact words.

Updated: 2026-09-29
Part of [What is an embedding?](https://pixeltable.com/learn/what-is-an-embedding).

## On this page

- [How it works](https://pixeltable.com/learn/what-is-an-audio-embedding#how-it-works)
- [What it is not](https://pixeltable.com/learn/what-is-an-audio-embedding#what-it-is-not)
- [Comparison](https://pixeltable.com/learn/what-is-an-audio-embedding#comparison)
- [Where Pixeltable fits](https://pixeltable.com/learn/what-is-an-audio-embedding#where-pixeltable-fits)
- [Questions](https://pixeltable.com/learn/what-is-an-audio-embedding#questions)

## How it works {#how-it-works}


- Embed the transcript window, or a model that reads the waveform.
- Index that vector.
- Query with a phrase or another clip.

## What it is not {#what-it-is-not}

It is not a spectrogram you browse by eye.

## audio embedding: this, and the thing it is confused with {#comparison}

|  | This | Not this |
| --- | --- | --- |
| Represents | Sound or the words in a window | A picture of the spectrum |
| Search | Similar speech | Exact substring only |
| Still keep | The audio and the text | Only the vector |

## Where Pixeltable fits {#where-pixeltable-fits}

Pixeltable usually embeds the transcript text with an embedding index. A waveform model is the same pattern on the audio column.

## Questions {#questions}

### How does audio embedding work? {#faq-1}

Embed the transcript window, or a model that reads the waveform. Index that vector. Query with a phrase or another clip.

### What is audio embedding often confused with? {#faq-2}

It is not a spectrogram you browse by eye.

## Related

- [Documentation](https://docs.pixeltable.com/datastore/embedding-index)
- [OpenAI Whisper API Integration: Automated Audio Transcription with Pixeltable](https://pixeltable.com/blog/whisper-transcription-pixeltable)
- [Audio transcription pipeline](https://pixeltable.com/use-cases/audio-transcription-pipeline)