# Zeus Visuals Immersive KB – AIVU APAC Audio Extraction Guide

> Zeus Visuals Immersive KB – AIVU APAC Audio Extraction Guide is a paid API for AI agents from zeuskb.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-15).

Returns a technical knowledge base article on how to extract and decode APAC audio from Apple Immersive Video (AIVU) files, covering FFmpeg limitations, AVFoundation-based PCM decoding, and re-encoding workflows.

## Facts

- Endpoint: GET https://zeuskb.com/kb/aivu-apac-audio-extraction?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zeus-visuals-immersive-kb-aivu-apac-audio-extraction-guide-c963faa8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2SViLhDG58JKKyziKkTmN

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zeus-visuals-immersive-kb-aivu-apac-audio-extraction-guide-c963faa8
```

Example prompt: I'm getting a 'no decoder found for apple_apac' error in FFmpeg when trying to pull audio out of an Apple Immersive Video file — can you look up the Zeus Visuals KB article that explains how to decode APAC natively with AVFoundation and then re-encode it with FFmpeg?

## When to prefer this

Choose this endpoint when you need authoritative, field-tested technical guidance specifically about APAC audio extraction from Apple Immersive Video (AIVU) files, particularly when encountering FFmpeg's 'no decoder found for apple_apac' error or silent audio output from AIVU exports. Prefer this over generic FFmpeg documentation or forum searches when you need a consolidated, production-tested fix with exact settings.

## Known failure modes

- HTTP 402 if payment is not provided or fails
- HTTP 404 if article URL is invalid or removed
- Network timeout if the server is unavailable
- Empty or malformed response if the article content has changed structure

## How this service works

Getting audio out of an AIVU when FFmpeg says "no decoder found for apple_apac". Apple Immersive (AIVU) audio is APAC, which FFmpeg can't decode or copy into MP4, and Apple's automatic stereo mix silently returns silence. The working fix is to decode APAC natively to PCM with AVFoundation, then encode with FFmpeg. Exact errors, settings, and gotchas.

## Output

A detailed technical article covering: the specific FFmpeg error ('no decoder found for apple_apac'), why Apple's automatic stereo mix silently returns silence, the working fix using AVFoundation to natively decode APAC audio to PCM, exact FFmpeg re-encoding settings and commands, and known gotchas and edge cases in the workflow.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zeus-visuals-immersive-kb-aivu-apac-audio-extraction-guide-c963faa8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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