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Audio Calc: Sound Wavelength & Speed Calculator
x402
Audio Calc: Sound Wavelength & Speed Calculator is a paid API for AI agents from audio-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Calculates speed of sound, wavelength, period, and delay-per-metre for audio frequencies at a given air temperature, with bidirectional frequency/wavelength/delay/distance conversions.
Price / call$0.02
Success—
StatusUnknown
How this service works
Speed of sound in air at a temperature, wavelength and period for a frequency or the reverse, with delay per metre.
Output
Returns a JSON object with speedOfSoundMs, wavelengthM, wavelengthCm, halfWavelengthM, quarterWavelengthM, periodMs, delayMs, distanceM, delayPerMetreMs, metresPerMillisecond, feetPerMillisecond, temperatureC, and frequencyHz — covering all computed acoustic properties for the given inputs.
Example use cases
Speaker placement distance from delay
“I have a 12ms delay between my main speakers and delay towers — what distance in metres does that correspond to at an air temperature of 22°C?”
Subwoofer wavelength for room treatment
“What's the full, half, and quarter wavelength of an 80 Hz bass tone at 20°C? I'm trying to figure out where to place acoustic panels.”
Frequency from a known wavelength
“I measured a standing wave with a wavelength of 0.86 metres in my studio — what frequency is that, and what's the period in milliseconds? Assume 20°C.”
Technical details
Endpoint
GEThttps://audio-calc.x402tookit.com/sound-wavelength?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need precise acoustic physics calculations — speed of sound at a specific temperature, wavelength/frequency conversions, or delay-to-distance mapping — rather than a general physics formula or table lookup. It is purpose-built for audio engineering contexts and returns all derived quantities (quarter-wave, delay per metre, feet per ms) in a single call, making it ideal for speaker placement, room acoustics, and live sound delay alignment tasks.
Side effects
- Missing all optional query params (frequencyHz, wavelengthM, delayMs, distanceM) may return an error or empty calculation
- Extremely high or low temperatures outside physical plausibility may produce unexpected results
- Conflicting inputs (both frequencyHz and wavelengthM supplied) may cause ambiguity in the response
- HTTP 402 returned if payment is not attached or USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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