{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"tool_pronounce","slug":"pronounce","name":"Pronounce","type":"product","url":"https://www.getpronounce.com","page_url":"https://unfragile.ai/pronounce","categories":["voice-audio"],"tags":[],"pricing":{"model":"freemium","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"tool_pronounce__cap_0","uri":"capability://data.processing.analysis.real.time.speech.to.phoneme.analysis.with.accent.detection","name":"real-time speech-to-phoneme analysis with accent detection","description":"Captures audio input via browser microphone and performs acoustic feature extraction (mel-frequency cepstral coefficients, spectral analysis) to identify phonemes and compare them against reference pronunciation models. The system likely uses a pre-trained speech recognition backbone (possibly Wav2Vec2 or similar) combined with phonetic alignment algorithms to map spoken audio to expected phoneme sequences, then scores deviation from native speaker baselines to detect accent patterns and mispronunciations.","intents":["I need to know if my pronunciation of a specific word matches native speaker standards","I want to identify which phonemes I'm mispronouncing in real-time","I need to understand my accent patterns across multiple utterances"],"best_for":["ESL learners preparing for TOEFL/IELTS exams","non-native speakers seeking objective pronunciation metrics","language learners without access to native speaker tutors"],"limitations":["Accent detection struggles with regional dialect variations and non-standard pronunciations that fall outside training data","Phoneme recognition accuracy degrades in noisy environments or with heavy accents","No support for prosody analysis (intonation, stress, rhythm) — only segmental phoneme accuracy","Language support breadth unknown; likely limited to high-resource languages (English, Spanish, Mandarin)"],"requires":["Modern browser with Web Audio API support (Chrome 25+, Firefox 25+, Safari 14.1+)","Microphone hardware and user permission for audio capture","Stable internet connection for real-time model inference"],"input_types":["audio (WAV, MP3, or browser microphone stream)","text (target word or phrase for comparison)"],"output_types":["structured phoneme-level scores (0-100 per phoneme)","accent classification (native vs non-native region)","visual feedback (waveform with error highlighting)"],"categories":["data-processing-analysis","speech-recognition"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_1","uri":"capability://data.processing.analysis.session.based.pronunciation.progress.tracking.with.historical.comparison","name":"session-based pronunciation progress tracking with historical comparison","description":"Stores user recordings and associated phoneme-level scores in a time-series database, enabling longitudinal analysis of pronunciation improvement across weeks or months. The system computes aggregate metrics (average phoneme accuracy per word, improvement velocity, consistency scores) and visualizes trends through dashboards, allowing learners to identify which sounds have improved and which require continued focus.","intents":["I want to see if my pronunciation has improved over the past month","I need to identify which specific sounds I should prioritize practicing","I want to track my progress toward a target pronunciation standard for exam prep"],"best_for":["learners with long-term pronunciation goals (3+ months)","exam-focused students needing quantifiable progress metrics","self-directed learners who benefit from gamification and milestone tracking"],"limitations":["Progress tracking depends entirely on consistency of input — sporadic practice sessions produce noisy trend data","No adaptive difficulty adjustment; system does not recommend which words to practice next based on performance gaps","Historical data retention limits unknown; may purge old sessions after 6-12 months on free tier","No export functionality mentioned — data may be locked within the platform"],"requires":["User account with persistent storage (freemium tier may have session limits)","Multiple recordings over time (minimum 5-10 sessions for meaningful trend analysis)","Consistent recording conditions to avoid confounding factors (background noise, microphone quality)"],"input_types":["audio recordings (timestamped, associated with target word/phrase)","user metadata (practice date, target language, proficiency level)"],"output_types":["time-series charts (phoneme accuracy over time)","aggregate statistics (improvement percentage, consistency score)","ranked word lists (sorted by current accuracy or improvement rate)"],"categories":["data-processing-analysis","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_2","uri":"capability://data.processing.analysis.multi.language.phonetic.reference.model.with.native.speaker.baselines","name":"multi-language phonetic reference model with native speaker baselines","description":"Maintains a library of phonetic reference models for supported languages, each trained on native speaker audio to establish baseline pronunciation standards. When a user records speech, the system selects the appropriate language model and compares the user's phoneme sequence against the reference baseline using dynamic time warping (DTW) or similar sequence alignment algorithms to compute phoneme-level similarity scores.","intents":["I need to know how my English pronunciation compares to native speaker standards","I want to practice a language and get feedback calibrated to that language's phonetic system","I need to understand which phonemes are language-specific and which transfer across languages"],"best_for":["polyglots or multilingual learners","learners of less common languages seeking any objective feedback","professionals needing accent reduction in specific languages"],"limitations":["Language support is limited and not publicly documented; likely covers only 5-15 high-resource languages","Reference models may be trained on single accent (e.g., American English only), providing poor feedback for learners targeting British or Australian English","No support for code-switching or multilingual utterances","Phonetic inventory may not include all phonemes in minority languages or tonal languages"],"requires":["Target language selection at session start","Language-specific microphone input (no automatic language detection)","Pre-trained phonetic models for each supported language (storage and inference cost)"],"input_types":["audio (language-specific)","language code (ISO 639-1 or similar)"],"output_types":["language-specific phoneme inventory","phoneme-level scores calibrated to that language","contrastive feedback (e.g., 'your /ɪ/ sounds like /iː/')"],"categories":["data-processing-analysis","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_3","uri":"capability://data.processing.analysis.browser.based.audio.capture.and.preprocessing.pipeline","name":"browser-based audio capture and preprocessing pipeline","description":"Implements a client-side Web Audio API pipeline that captures microphone input, applies noise reduction (spectral subtraction or similar), normalizes audio levels, and streams preprocessed audio to the backend inference service. The preprocessing reduces background noise and microphone artifacts before phoneme analysis, improving accuracy without requiring users to invest in expensive recording equipment.","intents":["I want to practice pronunciation in my home or office without worrying about background noise","I need consistent audio quality across different microphones and recording environments","I want to avoid uploading raw audio files and prefer real-time streaming"],"best_for":["casual learners practicing in non-ideal environments","users with budget microphones or laptop built-in mics","learners who value privacy and prefer client-side processing"],"limitations":["Noise reduction is limited to spectral subtraction or simple filtering; cannot handle highly variable background noise (e.g., traffic, music)","Audio preprocessing adds 50-200ms latency before inference begins","No support for external audio interfaces or professional recording equipment","Preprocessing parameters are likely fixed; no user control over noise reduction aggressiveness"],"requires":["Modern browser with Web Audio API (Chrome 14+, Firefox 25+, Safari 14.1+)","Microphone hardware and user permission","JavaScript runtime for client-side processing"],"input_types":["microphone stream (PCM audio, typically 16-bit 44.1kHz or 48kHz)"],"output_types":["preprocessed audio stream (noise-reduced, normalized)","audio metadata (detected noise level, normalization factor)"],"categories":["data-processing-analysis","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_4","uri":"capability://data.processing.analysis.word.level.and.phrase.level.pronunciation.scoring.with.error.localization","name":"word-level and phrase-level pronunciation scoring with error localization","description":"Accepts user input of target words or phrases, aligns the user's spoken audio to the target text using forced alignment algorithms (e.g., Hidden Markov Models or attention-based sequence-to-sequence models), and computes phoneme-level error scores. The system identifies which specific phonemes are mispronounced and localizes errors to exact positions in the utterance, enabling targeted feedback like 'your /ɪ/ in \"sit\" is too close to /iː/'.","intents":["I want to practice a specific word and get detailed feedback on which sounds I'm mispronouncing","I need to know exactly where in a phrase my pronunciation breaks down","I want to compare my pronunciation of a word to the target and see a phoneme-by-phoneme breakdown"],"best_for":["learners practicing specific vocabulary lists or exam word sets","users who benefit from granular, phoneme-level feedback","exam prep students (TOEFL, IELTS) who need to master specific word lists"],"limitations":["Forced alignment assumes the user attempts to pronounce the target word; if the user says something completely different, alignment may fail or produce spurious results","No support for homophones or words with multiple acceptable pronunciations","Phrase-level scoring becomes unreliable for utterances longer than 10-15 words due to accumulating alignment errors","Does not handle spontaneous speech or natural conversation — requires pre-specified target text"],"requires":["Target word or phrase provided as text input","Audio recording of user attempting to pronounce the target","Phonetic lexicon mapping words to phoneme sequences"],"input_types":["text (target word or phrase)","audio (user's spoken attempt)"],"output_types":["phoneme-level scores (0-100 per phoneme)","error localization (phoneme index and type of error)","visual alignment (waveform with phoneme boundaries highlighted)","corrective feedback (e.g., 'your /ɪ/ is too long')"],"categories":["data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_5","uri":"capability://automation.workflow.freemium.tier.management.with.usage.quotas.and.upsell.triggers","name":"freemium tier management with usage quotas and upsell triggers","description":"Implements a subscription tier system where free users have limited recording sessions, storage, or feature access (e.g., 5 recordings/month, basic feedback only), while premium users unlock unlimited sessions, advanced analytics, and priority support. The system tracks usage metrics and triggers upsell prompts when users approach quota limits or request premium features, converting free users to paying customers.","intents":["I want to try the platform before committing financially","I need to understand what features require payment","I want to upgrade when the free tier no longer meets my needs"],"best_for":["freemium SaaS platforms seeking low-friction user acquisition","language learning platforms targeting price-sensitive ESL learners","teams building conversion funnels from free to paid tiers"],"limitations":["Free tier quotas may be artificially restrictive, frustrating users and driving churn rather than conversion","Upsell triggers may be too aggressive, degrading user experience and creating negative brand perception","No details on quota enforcement mechanism — unclear if limits are soft (warnings) or hard (blocking)","Freemium model may cannibalize premium revenue if free tier is too feature-rich"],"requires":["User account system with tier tracking","Usage metering and quota enforcement logic","Payment processing integration (Stripe, PayPal, etc.)","Analytics to track conversion rates and churn"],"input_types":["user tier (free, premium, enterprise)","usage metrics (recordings this month, storage used)"],"output_types":["feature access control (enabled/disabled per tier)","quota status (X of Y recordings used)","upsell prompts (upgrade suggestions)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_pronounce__cap_6","uri":"capability://image.visual.visual.pronunciation.feedback.with.waveform.annotation.and.error.highlighting","name":"visual pronunciation feedback with waveform annotation and error highlighting","description":"Generates interactive visualizations of the user's audio waveform with phoneme boundaries, error regions, and comparison overlays against reference pronunciations. The UI likely displays spectrograms or mel-spectrograms with phoneme labels, highlights mispronounced regions in red, and may overlay the user's waveform against a native speaker reference for visual comparison.","intents":["I want to see where in my recording I made pronunciation errors","I need a visual representation of how my pronunciation differs from native speakers","I want to understand the acoustic characteristics of my mispronunciations"],"best_for":["visual learners who benefit from seeing acoustic patterns","learners with some phonetic knowledge who can interpret spectrograms","users who want to understand the 'why' behind pronunciation feedback"],"limitations":["Spectrogram interpretation requires phonetic knowledge; casual learners may find visualizations confusing","Rendering large spectrograms (5+ minute recordings) may cause browser performance issues","Color-coding and annotation schemes are not standardized; users must learn the platform's visual language","No interactive tools for users to annotate or mark specific regions for deeper analysis"],"requires":["Browser with Canvas or WebGL support for rendering spectrograms","JavaScript visualization library (D3.js, Plotly, or similar)","Phoneme boundary data from forced alignment"],"input_types":["audio waveform (PCM or spectrogram)","phoneme-level scores and boundaries","reference audio (native speaker baseline)"],"output_types":["interactive waveform visualization","spectrogram with phoneme labels","error highlighting (color-coded regions)","comparison overlay (user vs reference)"],"categories":["image-visual"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":41,"verified":false,"data_access_risk":"high","permissions":["Modern browser with Web Audio API support (Chrome 25+, Firefox 25+, Safari 14.1+)","Microphone hardware and user permission for audio capture","Stable internet connection for real-time model inference","User account with persistent storage (freemium tier may have session limits)","Multiple recordings over time (minimum 5-10 sessions for meaningful trend analysis)","Consistent recording conditions to avoid confounding factors (background noise, microphone quality)","Target language selection at session start","Language-specific microphone input (no automatic language detection)","Pre-trained phonetic models for each supported language (storage and inference cost)","Modern browser with Web Audio API (Chrome 14+, Firefox 25+, Safari 14.1+)"],"failure_modes":["Accent detection struggles with regional dialect variations and non-standard pronunciations that fall outside training data","Phoneme recognition accuracy degrades in noisy environments or with heavy accents","No support for prosody analysis (intonation, stress, rhythm) — only segmental phoneme accuracy","Language support breadth unknown; likely limited to high-resource languages (English, Spanish, Mandarin)","Progress tracking depends entirely on consistency of input — sporadic practice sessions produce noisy trend data","No adaptive difficulty adjustment; system does not recommend which words to practice next based on performance gaps","Historical data retention limits unknown; may purge old sessions after 6-12 months on free tier","No export functionality mentioned — data may be locked within the platform","Language support is limited and not publicly documented; likely covers only 5-15 high-resource languages","Reference models may be trained on single accent (e.g., American English only), providing poor feedback for learners targeting British or Australian English","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.36666666666666664,"quality":0.7300000000000001,"ecosystem":0.15000000000000002,"match_graph":0.25,"freshness":0.75,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.1,"match_graph":0.35,"freshness":0.05}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:32.438Z","last_scraped_at":"2026-04-05T13:23:42.551Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=pronounce","compare_url":"https://unfragile.ai/compare?artifact=pronounce"}},"signature":"HojUnXIev76epixSf8L/gf/a2Kj7y3LVEc1yfuKfiBbISZJnHHU+6eytR9lQFSWoVBAmx+VRpI1FsZP9h4sKCA==","signedAt":"2026-06-21T16:14:28.307Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/pronounce","artifact":"https://unfragile.ai/pronounce","verify":"https://unfragile.ai/api/v1/verify?slug=pronounce","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}