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RQM Reconstruct Time Domain Signal
x402
RQM Reconstruct Time Domain Signal is a paid API for AI agents from jobs.rqmtechnologies.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Converts bounded frequency-domain bins (complex samples) back into time-domain samples via inverse FFT and validates round-trip accuracy against a caller-supplied maximum RMSE threshold.
Price / call$0.005
Success—
StatusUnknown
How this service works
Reconstruct Time Domain Signal: Convert these bounded frequency bins into time-domain samples and verify the caller's... Use when: The caller needs a bounded objective result that can directly gate or feed its next step. Returns: strict JSON summary, checksummed artifact manifest. Boundaries: Deterministic bounded local signal processing only; no causal, hardware, physical, regulatory, safety, or...
Output
Returns time-domain complex samples reconstructed from the input frequency bins, along with a round-trip RMSE value computed against optional reference samples, and a pass/fail verdict indicating whether the RMSE is within the caller-specified maximum threshold.
Example use cases
Audio waveform reconstruction from spectrum
“I have 1024 complex frequency bins from an audio FFT at 44100 Hz using backward normalization — reconstruct the time-domain audio samples and confirm the round-trip RMSE is under 0.001.”
RF signal round-trip integrity check
“Convert these 256 complex RF frequency bins sampled at 2.4 GHz with forward normalization back into time-domain samples and tell me if the round-trip error stays below 0.05 — I want to make sure the spectral representation is lossless.”
Sensor capture verification after spectral processing
“I processed a sensor capture through a forward FFT and now need to invert it back to time domain at 1000 Hz with ortho normalization; compare the result against my original reference samples and flag if the RMSE exceeds 0.1.”
Technical details
Endpoint
POSThttps://jobs.rqmtechnologies.com/x402/buyer-jobs/wave.reconstruct-time-domain-signal.v1When to prefer
Use this endpoint when you have frequency-domain complex bins (e.g. from an FFT or RQM's Convert Capture To Spectrum endpoint) and need to recover the original time-domain signal with a bounded, verifiable reconstruction error. Ideal for pipelines that require a quantitative round-trip RMSE guarantee before passing results downstream. Prefer this over manual IFFT implementations when you need a managed, pay-per-call service with built-in validation. Not suitable when you need streaming reconstruction, hardware-in-the-loop truth, or causal/physical diagnosis of the signal.
Side effects
- RMSE exceeds maximum_round_trip_rmse threshold — reconstruction rejected
- frequency_bins count outside 1–4096 range — validation error
- sample_rate_hz is zero or negative — rejected
- invalid normalization enum value — schema error
- mismatched reference_time_samples length — error
- malformed complex sample (missing real or imaginary) — schema validation failure
- payment failure (x402) — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request | object | Reconstruct Time Domain Signal request metadata is discovery-only while execution is disabled. |
| schema_version | — | |
| idempotency_key | string | |
| max_total_price | string |
Tags
x402
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