Audio Tools APIs
Pixazo's audio utility APIs in one place. Split a track into stems, work out who spoke when, and extract clean audio from any video — programmatically, on the same unified Pixazo endpoint and authentication. Every tool takes audio or video and bills per second of what you send. Pick one below to see what it does and how it works.
Explore the Audio Tools APIs
Audio utility endpoints — choose the one you need.
What are the Audio Tools APIs?
The Audio Tools APIs are Pixazo's programmatic audio utilities — the audio operations you'd normally run in a desktop tool, exposed as simple API calls. Convert MP4 to MP3, or pull a clean audio track out of any video, through a dedicated endpoint on the same Pixazo API and authentication.
They're built to drop into an existing media pipeline: extract audio for podcasts, transcription, or archives automatically, at scale, without manual exporting. Each tool is in active development — open its page for the planned inputs, outputs, and options.
The Audio Tools APIs at a glance
| API | What it does | Input → output | Best for |
|---|---|---|---|
| MP4 to MP3 API | Convert video to MP3 and extract its audio track | MP4 / MOV / MKV / WebM → MP3 or M4A | Podcasts, transcription, archives |
How do the Audio Tools APIs work?
- Authenticate with your Pixazo API key in the
Ocp-Apim-Subscription-Keyheader. - POST a publicly reachable HTTPS URL to the tool's endpoint — audio or video, since the audio is extracted server-side. There is no sample-rate or channel parameter; MP4 to MP3 takes an output
format, the rest take their own options. - The job runs asynchronously — poll its status or receive a webhook.
- Download the extracted audio; your source file is never modified.
Common use cases
- Podcast repurposing — turn video interviews into MP3 episodes.
- Transcription prep — extract a clean track to feed the Speech to Text API.
- Archiving — store meeting and webinar audio separately from heavy video.
- Audio datasets & search — batch-convert a video library to MP3.