Beat frequency API

Computes the beat frequency f_beat = |f1 − f2| between two close tones, with beat period and the perceived average pitch. Answers 'How many beats per second do these tones produce?', 'What pitch is perceived during the beating?'.

Price$0.02per request

MethodPOST

Route/v1/engineering/beat-frequency

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

wavesacousticsbeat-frequencyinterferencetuningtoneaudiophysics

API URLhttps://x402.hexl.dev/v1/engineering/beat-frequency

Integration docs

Example request

{
  "frequency1Hz": 440,
  "frequency2Hz": 443
}

Example response

{
  "beatFrequencyHz": 3,
  "beatPeriodS": 0.333333,
  "averageFrequencyHz": 441.5,
  "interpretation": "3 beats per second (perceived pitch 441.5 Hz)."
}

Input schema

{
  "type": "object",
  "required": [
    "frequency1Hz",
    "frequency2Hz"
  ],
  "properties": {
    "frequency1Hz": {
      "type": "number",
      "description": "First tone frequency (Hz)",
      "examples": [
        440
      ]
    },
    "frequency2Hz": {
      "type": "number",
      "description": "Second tone frequency (Hz)",
      "examples": [
        443
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}