{"uid":"cap_I8gAJqdKf9VjeArmG2MwP","slug":"halowerk-audiowerk-speech-rate-analyzer-89b04249","name":"HALOWERK audiowerk Speech Rate Analyzer","description":"HALOWERK audiowerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.","url":"https://audio.halowerk.com/speech-rate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"audio":{"type":"object","properties":{"url":{"type":"string","maxLength":2048,"description":"Public http(s) URL of the audio file."},"content_base64":{"type":"string","maxLength":12000000,"description":"The file inline, base64."}},"description":"The recording. Either url or content_base64, not both.","additionalProperties":false},"language":{"type":"string","maxLength":8,"description":"ISO 639-1 code of the spoken language. Left out, it is detected."},"include_transcript":{"type":"boolean","default":false,"description":"Return the transcript text alongside the measurement. Segment timings always come back."},"silence_threshold_db":{"type":"integer","default":-35,"maximum":-20,"minimum":-70,"description":"Level below which a stretch counts as a pause."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WUvRL6hhxHqx1_MkiQUT2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Measures the speaking rate and pause patterns of an audio recording, with optional transcript and segment timings","exampleAgentPrompt":"Can you analyze the speech rate and pauses in this podcast recording at https://example.com/episode.mp3 — spoken in English — and also return the transcript?","exampleUseCases":[{"title":"Podcast pacing quality check","prompt":"I just recorded a podcast episode — here's the URL: https://cdn.mypodcast.com/ep42.mp3. Can you measure my speech rate and show me where I paused too long? Use English and return the transcript too."},{"title":"Presentation coach feedback","prompt":"I have a recorded presentation at https://storage.example.com/talk.wav, spoken in English. Can you tell me how fast I'm speaking and flag the silent stretches — set the silence threshold to -40 dB so only noticeable pauses count?"},{"title":"Automated audiobook QA pipeline","prompt":"Run a speech rate analysis on this base64-encoded narration file — the language is English — and give me the segment timings so I can check whether the narrator is staying within the target pace range."}],"resultDescription":"Returns the measured speech rate (e.g. words per minute), detected pause/silence segments with timings, and optionally the full transcript text alongside per-segment timing data.","failureModes":["Audio URL is not publicly accessible or returns a non-200 response","Audio file exceeds base64 size limit (12 MB encoded)","Both url and content_base64 provided simultaneously — only one is accepted","Unsupported audio format or corrupted file","Language detection fails if audio quality is too low","silence_threshold_db out of allowed range (-70 to -20)"],"whenToPreferThis":"Choose this endpoint when you need objective, quantitative speech-rate metrics and pause analysis from an audio file — especially for coaching, QA pipelines, podcast production, or accessibility tooling. It is distinct from general transcription services in that it returns silence/pause detection and pacing data, not just text. Use it when the speaking cadence itself is the signal you care about.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:02:51.309Z","isFirstParty":false}