{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"tool_notevibes","slug":"notevibes","name":"Notevibes","type":"product","url":"https://notevibes.com","page_url":"https://unfragile.ai/notevibes","categories":["voice-audio"],"tags":[],"pricing":{"model":"freemium","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"tool_notevibes__cap_0","uri":"capability://text.generation.language.emotion.aware.text.to.speech.synthesis","name":"emotion-aware text-to-speech synthesis","description":"Converts text input into natural speech audio with controllable emotional inflection parameters (e.g., happy, sad, neutral, excited). The system applies emotion-specific prosody modifications to pitch contours, speech rate, and voice timbre during synthesis, rather than simple post-processing or parameter swapping. This architectural approach enables genuine emotional authenticity in voiceover delivery that affects fundamental acoustic properties of the generated speech.","intents":["Generate voiceovers for educational content with emotional engagement that matches narrative tone","Create audiobook narrations where character emotions shift naturally within dialogue","Produce marketing/promotional audio with authentic emotional resonance rather than robotic delivery","Build accessible content with emotional context preserved for visually impaired users"],"best_for":["Content creators and educators prioritizing emotional authenticity in voiceovers","Audiobook publishers needing character-driven narration without hiring voice actors","Marketing teams creating emotionally resonant ad copy narration","Accessibility-focused organizations building inclusive content"],"limitations":["Emotion control is limited to predefined emotional states (typically 4-6 options) rather than continuous emotional parameter tuning","Emotional inflection quality degrades with highly technical or domain-specific text lacking natural language patterns","No fine-grained control over individual phoneme-level prosody modifications","Emotion rendering may not transfer consistently across all supported languages due to linguistic differences in emotional expression"],"requires":["Text input in supported language (minimum 50 characters recommended for natural emotion rendering)","Selection of target emotion from predefined palette","Internet connection for cloud-based synthesis API","Browser or API client supporting audio streaming"],"input_types":["plain text","markdown with formatting hints","SSML-like markup for emotion tags"],"output_types":["MP3 audio file","WAV audio file","streaming audio (HTTP progressive download)"],"categories":["text-generation-language","audio-synthesis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_1","uri":"capability://text.generation.language.multi.language.text.to.speech.with.accent.variation","name":"multi-language text-to-speech with accent variation","description":"Synthesizes speech across multiple languages and regional accent variants by maintaining separate acoustic models and phoneme inventories per language-accent pair. The system routes input text through language detection or explicit language selection, then applies language-specific phoneme mapping and prosody rules before synthesis. Accent variation is implemented through speaker embedding selection rather than post-processing, preserving authentic regional speech characteristics.","intents":["Create multilingual educational content with authentic regional accents for language learning","Generate voiceovers for global marketing campaigns with region-specific accent authenticity","Build accessible content for non-English speakers in their native language with familiar accent patterns","Produce international audiobook narrations with culturally appropriate speech characteristics"],"best_for":["International content creators targeting multiple language markets","Language learning platforms requiring authentic accent models","Global SaaS companies localizing product narration and tutorials","Publishers producing multilingual audiobooks with regional authenticity"],"limitations":["Language support is limited to approximately 10-15 languages (fewer than Google Cloud TTS's 30+ languages)","Accent variants available only for major languages; smaller languages typically offer single accent only","Code-switching (mixing languages within single text) is not supported; requires separate synthesis passes per language","Phoneme accuracy for non-Latin scripts (Arabic, Chinese, Devanagari) may be lower than Latin-based languages due to model training data imbalance"],"requires":["Text input in supported language (language auto-detection or explicit language parameter)","Optional accent selection parameter if multiple accents available for target language","Internet connection for cloud synthesis API","Character encoding support for target language (UTF-8 minimum)"],"input_types":["plain text in supported language","language-tagged text (e.g., <lang>es</lang> for Spanish sections)","SSML with language attributes"],"output_types":["MP3 audio file","WAV audio file","streaming audio with language metadata"],"categories":["text-generation-language","audio-synthesis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_2","uri":"capability://automation.workflow.freemium.quota.based.text.to.speech.generation","name":"freemium quota-based text-to-speech generation","description":"Implements a freemium service model with daily character limits (3,000 characters/day for free tier) enforced through server-side quota tracking and API rate limiting. The system maintains per-user quota state, tracks daily character consumption across synthesis requests, and returns quota-exceeded errors when limits are reached. Paid tiers unlock higher daily limits and additional features without architectural changes to the synthesis pipeline.","intents":["Evaluate TTS quality and emotion control without financial commitment before purchasing","Generate occasional voiceovers for personal projects within daily character limits","Prototype voice-enabled applications with minimal upfront cost","Access basic TTS functionality for educational or non-commercial use cases"],"best_for":["Individual content creators and educators with modest voiceover needs","Developers prototyping voice-enabled applications before scaling","Non-technical users wanting accessible TTS without subscription commitment","Students and researchers exploring TTS capabilities"],"limitations":["3,000 character daily limit is restrictive for high-volume content creators (roughly 500-750 words/day)","Quota resets on calendar day boundary, not rolling 24-hour window, creating artificial scarcity near reset time","No quota carryover or banking mechanism; unused daily quota expires at midnight","Free tier lacks batch processing or scheduled synthesis, requiring manual requests for each voiceover","No API for programmatic quota checking; users must infer remaining quota from error responses"],"requires":["Free user account with email verification","Web browser or API client for synthesis requests","Internet connection for cloud API access","No credit card required for free tier"],"input_types":["plain text (counted in characters including whitespace)","markdown or formatted text (character count includes formatting)"],"output_types":["MP3 audio file","WAV audio file"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_3","uri":"capability://tool.use.integration.web.based.text.to.speech.interface.with.real.time.preview","name":"web-based text-to-speech interface with real-time preview","description":"Provides a browser-based UI for text input, emotion/language selection, and immediate audio playback without requiring API integration or technical setup. The interface implements client-side text validation and character counting, sends synthesis requests to backend API, and streams audio response directly to HTML5 audio player for instant preview. This zero-setup approach eliminates friction for non-technical users while maintaining API accessibility for developers.","intents":["Quickly generate voiceovers without writing code or configuring API clients","Preview emotional inflection and accent choices before committing to synthesis","Share generated audio directly from web interface without downloading","Experiment with different emotions and languages interactively"],"best_for":["Non-technical content creators and educators","Marketers and product managers prototyping voiceover options","Accessibility specialists testing speech output for content","Casual users exploring TTS capabilities without development background"],"limitations":["Web interface lacks batch processing; each voiceover requires separate manual request","No project management or voiceover library within web UI; generated audio must be downloaded manually","Character limit display is real-time but doesn't prevent submission of oversized text (error handling is post-submission)","Audio playback quality depends on browser codec support; some browsers may not support all output formats natively","No undo/revision history; regenerating with different parameters requires re-entering text"],"requires":["Modern web browser with HTML5 audio support (Chrome, Firefox, Safari, Edge)","JavaScript enabled for interactive UI","Internet connection for API requests","No installation or configuration required"],"input_types":["plain text (pasted or typed into textarea)","text copied from external sources"],"output_types":["MP3 audio file (downloadable)","WAV audio file (downloadable)","streaming audio (in-browser playback)"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_4","uri":"capability://text.generation.language.voice.agnostic.emotion.and.language.parameter.system","name":"voice-agnostic emotion and language parameter system","description":"Decouples emotion and language selection from specific voice identities, allowing users to apply emotional inflection and language/accent choices independently of voice selection. The system maintains a parameter matrix where emotions and languages are orthogonal dimensions, enabling combinations like 'happy + Spanish accent' or 'sad + British English' without requiring pre-configured voice-emotion-language tuples. This architectural approach maximizes feature combinations from limited voice inventory.","intents":["Apply emotional inflection to any available voice without voice-specific emotion training","Switch languages or accents while maintaining consistent voice identity across multilingual content","Experiment with emotion-language combinations without being constrained by pre-built voice profiles","Maximize content variety from limited voice inventory through parameter combinations"],"best_for":["Content creators needing flexible emotion-language combinations with limited voice options","Developers building voice-enabled applications requiring parameter-driven synthesis","Teams producing multilingual content with consistent voice identity across languages"],"limitations":["Emotion rendering quality may vary across languages due to linguistic differences in emotional expression patterns","Some emotion-language combinations may produce unnatural results (e.g., certain emotions may not translate well to tonal languages)","Voice identity consistency across languages is approximate; acoustic characteristics shift with language-specific phoneme sets","Parameter combinations are not pre-validated; invalid or unusual combinations may produce lower-quality output without explicit error"],"requires":["Selection of base voice from available inventory","Selection of emotion from predefined palette","Selection of language/accent from supported options","Text input in target language"],"input_types":["voice identifier (string or numeric ID)","emotion parameter (enum: happy, sad, neutral, excited, etc.)","language/accent parameter (enum: en-US, es-ES, fr-FR, etc.)","text content in target language"],"output_types":["MP3 audio file","WAV audio file","audio stream with metadata"],"categories":["text-generation-language","audio-synthesis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_5","uri":"capability://tool.use.integration.api.based.text.to.speech.with.authentication.and.rate.limiting","name":"api-based text-to-speech with authentication and rate limiting","description":"Exposes TTS functionality through HTTP REST API with API key authentication, request rate limiting per user tier, and structured JSON request/response formats. The system validates API keys against user account quotas, enforces per-minute or per-hour rate limits based on subscription tier, and returns standardized error responses for quota exceeded, invalid parameters, or service unavailability. This enables programmatic integration into applications and workflows beyond the web UI.","intents":["Integrate TTS into custom applications or workflows without web UI dependency","Automate voiceover generation for batch content processing pipelines","Build voice-enabled chatbots or conversational interfaces with emotion control","Create server-side voiceover generation for SaaS products or platforms"],"best_for":["Developers building voice-enabled applications or integrations","Teams automating content production pipelines with TTS","SaaS companies embedding TTS into products","Researchers and data scientists exploring TTS in larger systems"],"limitations":["API documentation quality and completeness unknown; may lack detailed parameter specifications or error code reference","Rate limiting granularity (per-minute vs per-hour vs per-day) not specified; may be coarse-grained relative to competitors","No batch API endpoint; high-volume synthesis requires sequential requests with per-request latency overhead","Audio streaming response format may not support range requests or resumable downloads for large files","No webhook or callback mechanism for asynchronous synthesis; all requests are synchronous"],"requires":["API key from user account (obtained via web dashboard)","HTTP client library (curl, requests, axios, etc.)","Knowledge of API endpoint URL and request format","Active internet connection","Paid tier for production use (free tier may have restrictive rate limits)"],"input_types":["JSON request body with text, emotion, language, voice parameters","HTTP headers with API key authentication","URL query parameters for optional settings"],"output_types":["MP3 audio file (binary response)","WAV audio file (binary response)","JSON response with error details or audio metadata"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_notevibes__cap_6","uri":"capability://automation.workflow.audio.download.and.format.selection","name":"audio download and format selection","description":"Enables users to download synthesized audio in multiple formats (MP3, WAV) with configurable quality/bitrate settings. The system generates audio in the requested format during synthesis or performs post-processing conversion, stores the file temporarily, and provides HTTP download link with appropriate content-type headers and filename. Format selection is exposed in both web UI and API, allowing users to optimize for file size (MP3) or quality (WAV).","intents":["Download voiceovers for use in video editing, podcasts, or other production workflows","Choose audio format based on platform requirements (MP3 for web, WAV for professional audio)","Optimize file size for storage or distribution constraints","Archive generated voiceovers for future reference or reuse"],"best_for":["Content creators and producers integrating voiceovers into larger projects","Developers building applications requiring specific audio formats","Teams managing audio asset libraries with format requirements"],"limitations":["Format options limited to MP3 and WAV; no support for AAC, OGG, or other modern codecs","Bitrate/quality settings for MP3 may be fixed rather than user-configurable","Downloaded files lack metadata (ID3 tags, artwork) for organization in media libraries","No batch download mechanism; each voiceover requires separate download request","Temporary file retention policy unknown; downloaded files may expire after fixed period"],"requires":["Completed synthesis (audio generated via web UI or API)","Web browser or HTTP client for download","Sufficient disk space for audio file","Audio player supporting target format (MP3 or WAV)"],"input_types":["format selection parameter (enum: mp3, wav)","optional bitrate/quality parameter"],"output_types":["MP3 audio file (binary, typically 128-192 kbps)","WAV audio file (binary, uncompressed or lossless compressed)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":41,"verified":false,"data_access_risk":"high","permissions":["Text input in supported language (minimum 50 characters recommended for natural emotion rendering)","Selection of target emotion from predefined palette","Internet connection for cloud-based synthesis API","Browser or API client supporting audio streaming","Text input in supported language (language auto-detection or explicit language parameter)","Optional accent selection parameter if multiple accents available for target language","Internet connection for cloud synthesis API","Character encoding support for target language (UTF-8 minimum)","Free user account with email verification","Web browser or API client for synthesis requests"],"failure_modes":["Emotion control is limited to predefined emotional states (typically 4-6 options) rather than continuous emotional parameter tuning","Emotional inflection quality degrades with highly technical or domain-specific text lacking natural language patterns","No fine-grained control over individual phoneme-level prosody modifications","Emotion rendering may not transfer consistently across all supported languages due to linguistic differences in emotional expression","Language support is limited to approximately 10-15 languages (fewer than Google Cloud TTS's 30+ languages)","Accent variants available only for major languages; smaller languages typically offer single accent only","Code-switching (mixing languages within single text) is not supported; requires separate synthesis passes per language","Phoneme accuracy for non-Latin scripts (Arabic, Chinese, Devanagari) may be lower than Latin-based languages due to model training data imbalance","3,000 character daily limit is restrictive for high-volume content creators (roughly 500-750 words/day)","Quota resets on calendar day boundary, not rolling 24-hour window, creating artificial scarcity near reset time","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":"2026-05-24T12:16:31.859Z","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=notevibes","compare_url":"https://unfragile.ai/compare?artifact=notevibes"}},"signature":"V5WSnrylmCuKwuanlYHURE+AZLHHPmzCRhmZoGs9FH7X5AFwiRdDgDkELptOWcircvdCAl64s4Tz/y10TuyODA==","signedAt":"2026-06-22T12:33:37.753Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/notevibes","artifact":"https://unfragile.ai/notevibes","verify":"https://unfragile.ai/api/v1/verify?slug=notevibes","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"}}