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HALOWERK audiowerk Voice Spectrum Analyzer
x402
HALOWERK audiowerk Voice Spectrum Analyzer is a paid API for AI agents from audio.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-13).
Analyzes an audio recording and returns its voice frequency spectrum, with optional per-frequency power data at 128 probe points for plotting.
Price / call$0.006
Success—
StatusUnknown
How this service works
HALOWERK audiowerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns the voice frequency spectrum of the submitted audio. When detail=true, also includes power measurements at all 128 probe frequencies suitable for plotting a full spectral curve of the voice.
Example use cases
Podcast voice quality check
“Can you run a spectrum analysis on my podcast recording at https://mypodcast.com/ep42.mp3 and give me the full 128-point frequency data so I can see if the voice frequencies look right before publishing?”
Speaker vocal profile extraction
“I have a voice sample at https://storage.example.com/speaker-a.wav — analyze its frequency spectrum and return the detailed power levels at all probe frequencies so I can build a vocal fingerprint.”
Audio EQ diagnostic for a client call
“Here's a base64-encoded WAV of a client call recording — analyze its voice spectrum and tell me which frequency ranges have the most power, with the detailed 128-frequency breakdown included.”
Technical details
Endpoint
POSThttps://audio.halowerk.com/voice-spectrumWhen to prefer
Choose this endpoint when you need detailed spectral analysis of a voice or audio recording, especially for diagnostics, vocal profiling, EQ assessment, or plotting frequency response curves. It is purpose-built for voice spectrum extraction rather than general audio metadata or transcription.
Side effects
- Audio URL is not publicly accessible or returns a non-200 response — request fails with an error
- Base64 content exceeds 12MB limit — rejected with payload-too-large error
- Neither url nor content_base64 is provided — missing required field error
- Audio format is unsupported or corrupted — processing error returned
- Payment not provided or insufficient — HTTP 402 payment required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| audio | object | The recording. Either url or content_base64. |
| detail | boolean | Also return the power at all 128 probe frequencies, for plotting. |
Tags
x402
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