AI app for marketing · no coding needed
Source-based narration production workspace
Reduce narration production cycles while keeping the writer's meaning and the brand voice.
Made for: Marketing and content teams producing narrated audio from written material
What it does for you
The problem
Narrated audio is produced across several rented tools, so scripts, voice settings, approvals and exports are scattered and hard to reuse.
What it gives you
Editor-approved narration masters linked to their source text
What you give it
Approved scriptsbrand voice referencespronunciation listsdelivery constraints
Build your own version of Listnr, Narration Box and more
One app with what these 10 AI tools do, yours to keep and change: Listnr, Narration Box, Play.ht, Murf.ai, WellSaid Labs, SpeechEasy, DupDub, Speechify, NaturalReader, TTS-Voice-Wizard.
Everything these tools do, in one app
- Text to Speech Converts written text into spoken audio.Found in Listnr, Narration Box, Play.ht and 7 more
- Natural Sounding Voices Produces human-like, realistic speech rather than robotic audio.Found in Listnr, Narration Box, Play.ht and 6 more
- Multilingual Support Offers voices in many languages and accents for global content.Found in Listnr, Narration Box, Play.ht and 5 more
- Large Voice Library Provides a wide selection of distinct voices to choose from.Found in Listnr, Narration Box, Play.ht and 6 more
- Voice Customization Allows adjusting pitch, speed, pauses, and emphasis for precise delivery.Found in Play.ht, Murf.ai, Narration Box and 1 more
- Emotional and Expressive Voices Delivers narration with a range of emotions and expressive tones.Found in Narration Box, NaturalReader
- Voice Cloning Replicates a specific voice to create custom or branded audio.Found in Play.ht, DupDub, NaturalReader and 1 more
- Multi-Speaker Projects Supports creating audio with multiple different voices in one project.Found in Narration Box, Play.ht
- SSML Support Enables fine-tuning pronunciation, tone, and pacing via markup.Found in Play.ht
- Audio Format Options Exports audio in common formats like MP3 and WAV.Found in Play.ht
- API Integration Lets developers embed text-to-speech into their own applications.Found in Listnr, Murf.ai
- Podcast Creation Generates and publishes podcast episodes directly from text.Found in Listnr
- Team Collaboration Enables teams to work together on voiceover projects with shared workflows.Found in WellSaid Labs
- Enterprise Security Emphasizes data security and ethical AI for organizational use.Found in WellSaid Labs
- Cross-Platform Availability Works across desktop, mobile, and browser platforms.Found in SpeechEasy, Speechify
- Reading Speed Control Allows listening at speeds up to 9x faster than average reading.Found in Speechify
- Scan and Read Captures printed text via camera and reads it aloud.Found in Speechify
- Device Synchronization Keeps listening progress synced across multiple devices.Found in Speechify
- File Format Support Imports text from PDFs and many other document formats.Found in NaturalReader
- Speech Recognition Converts spoken words into text as part of the workflow.Found in TTS-Voice-Wizard
- VRChat OSC Integration Sends text as OSC messages to display on VRChat avatars.Found in TTS-Voice-Wizard
- Transcription and Translation Provides transcription, translation, and subtitle alignment tools.Found in DupDub
How it works, step by step
- Import scripts from text, PDF and document formats
- Convert written text into spoken audio
- Select from a large library of natural-sounding voices
- Support multiple languages and accents
- Adjust pitch, speed, pauses and emphasis
- Apply emotional and expressive delivery tones
- Clone a specific voice for branded audio
- Build multi-speaker projects in one file
- Fine-tune pronunciation and pacing with SSML
- Export audio in MP3 and WAV
- Expose an API for embedding narration in other apps
- Assemble podcast episodes from text
- Support team collaboration on shared voiceover projects
- Apply enterprise security and ethical AI controls
- Run across desktop, mobile and browser
- Control listening speed for review
- Capture printed text by camera and read it aloud
- Sync listening progress across devices
- Transcribe spoken words back into text
- Send text as OSC messages to VRChat avatars
- Produce transcription, translation and subtitle alignment
- Compare the reviewed result with the recorded baseline and value assumptions
- Capture corrections and named-owner approval before consequential use
- Export a versioned editor-approved narration master with source references and unresolved questions
Build it yourself with your AI system
Build this app yourself, no coding needed
Start with a quick version you can try in a few minutes. Like it? Then build the full app by copying and pasting our step-by-step instructions: everything is prepared for you.
Sign in to see how to build it yourself
Build a quick version to try, or get the full app pack for Source-based narration production workspace with the step-by-step building instructions. You don't need any technical skills: you copy, paste and answer a few questions. Both are included in the membership.
4 Have it built for you days to a few weeks
Rather not do it yourself, or want it fully tailored to your data, your way of working and your brand? Nexibeo builds Source-based narration production workspace with you.
What's in the app pack
Included in the Complete AI Training membership.
- The building instructions your AI follows, step by step
- The questions your AI will ask you about your business before it starts
- A clickable demo you can open in your browser, to see how it should work
- A detailed blueprint of the screens, the information it keeps and the checks it runs
Become a member to get the app packAlready a member? Sign in
The files, for the technically curious
- START-HERE.mdHow to build it with your own AI (read first)3 KB
- README.mdOverview and links5 KB
- questions.mdQuestions to answer before you build2 KB
- prompt-cloudflare.mdThe full build prompt, hosted on Cloudflare24 KB
- prompt-vps.mdThe same build on your own server (Docker)24 KB
- spec.jsonData model, API, AI pipeline, acceptance criteria11 KB
- demo/index.htmlThe working demo on sample data200 KB
Questions
Do I need to know how to code?
No. You copy and paste the prompts on this page into ChatGPT or Claude, and the AI does the building. When it asks you something, you answer in your own words.
What does it cost?
The quick version, the app pack and the step-by-step instructions are for members: you pay the membership price, not a price per app (see the plans). Building the full app uses your own ChatGPT or Claude subscription. Putting it online is often cheap or no cost at the start, and your AI tells you before anything costs money.
How long does it take?
The quick version: about two minutes. The real app: an afternoon for a first version you can use, longer if you want every feature.
Can I change it to fit my business?
Yes. Tell your AI what to change in plain words, like “add a column for the price” or “use our logo and colours”. Or have Nexibeo build and customise it for you.
More detailsHow the AI works, safeguards and what to build first
Reduce narration production cycles while keeping the writer's meaning and the brand voice. For marketing and content teams producing narrated audio from written material, convert approved scripts, brand voice references, pronunciation lists and delivery constraints into editor-approved narration masters linked to their source text. The benefit is a testable hypothesis, measured through accepted narration minutes per production hour and corrections after approval; do not assume that AI output alone produces business value.
Confirm the buyer's problem and scope, collect approved scripts, brand voice references, pronunciation lists and delivery constraints, then follow this sequence: 1. Import scripts from text, PDF and document formats. 2. Convert written text into spoken audio. 3. Select from a large library of natural-sounding voices. 4. Support multiple languages and accents. 5. Adjust pitch, speed, pauses and emphasis. 6. Apply emotional and expressive delivery tones. 7. Clone a specific voice for branded audio. 8. Build multi-speaker projects in one file. 9. Fine-tune pronunciation and pacing with SSML. 10. Export audio in MP3 and WAV. Resolve uncertain cases with qualified reviewers, approve editor-approved narration masters linked to their source text, and measure accepted narration minutes per production hour and corrections after approval against a documented baseline.
How the AI works
Use AI to interpret permitted inputs, suggest structured mappings and generate candidate outputs for the stated task modules. Use deterministic code for arithmetic, schema validation, hard constraints and reproducible tests. Review source-linked explanations and uncertainty before accepting results. One approved voice set and language list; final pronunciation and meaning checks remain editorial. A model suggestion is never a verified fact, professional decision or authorization to act.
Safeguards
Preserve author voice, source attribution, quotation accuracy and usage permissions. Authors approve substantive changes and publication scope. One approved voice set and language list; final pronunciation and meaning checks remain editorial. Keep all consequential actions under authorized human control and do not fabricate missing inputs, permissions, professional judgments or market evidence.
What to build first
Pilot scope: One approved voice set and language list; final pronunciation and meaning checks remain editorial. Implement one approved input format, a bounded representative case set and the first two task modules: import scripts from text, PDF and document formats; convert written text into spoken audio. Support the remaining modules with operator review: select voices, adjust delivery, clone a brand voice, build multi-speaker projects, apply SSML, export MP3 and WAV. Include source references, corrections, basic organization access, approval states, export and value measurement. Use managed operator assistance for unresolved exceptions. The cost estimate covers this narrow prototype, not unrestricted multi-tenant scale, complex production integrations, specialist certification or physical operations.
What it can connect to
Author-owned scripts, authorized brand voice samples and permitted research sources. Cloud asset storage, document import/export and publishing destinations. Start with file exchange and validate destination specifications before promising direct publishing. Start with authorized file exchange. Validate current provider access, usage rights and schema behavior before promising a connector.
The screens in detail
Primary screens: Script and source intake, Editable narration preview, Client proof and delivery. Use a thumbnail gallery for projects, a large central editing canvas, and a right-hand panel for references, constraints and comments. Let users compare versions side by side. Display draft, changes requested and approved states. Provide a client preview link with comments anchored to the relevant audio segment. Make the task-specific outcome editor-approved narration masters linked to their source text visible beside its evidence, review state and value baseline.
