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Products that do what I generated 70k audiobooks with OpenAI Text-to-Speech does

Hey HN. I’m Ivan, hacker from Ukraine. For about a year, I was working on Listenly — an app to listen to text content with OpenAI's natural-sounding text-to-speech model. At some moment, I realized that it would be cool to take all the public domain e-books and create audio versions for them. So I did it... kind-of. It would cost an immense amount of money to generate all the audio right away (OpenAI TTS costs approximately $0.84/hour of audio; 11labs, for comparison, is 10 times more expensive). So, I took a more gradual approach. I took all the metadata from the Project Gutenberg…

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    Structure, edit, and generate long-form audio with precision

    2025

  2. 2

    Books and papers turned into podcast chats

    2024

  3. 3
    Vocally188

    Create, host, distribute voiceovers & podcasts

    2022

  4. 4AT

    Hi HN, I’m Michael, creator of AudiowaveAI. I started this project out of frustration when I couldn't find an audiobook version of Make by Pieter Levels. The available text-to-speech options were either too robotic, overly complex, or simply too costly. It works really well for non-fiction long-form content (i.e. hours of audio). It’s early days for AudiowaveAI, and I’m looking for feedback to improve the product. Try it out and share your thoughts: [AudiowaveAI](https://audiowaveai.com). Thanks!

    2024 · audiowaveai.com

  5. 5IM
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    Structure, edit, and generate long-form audio with precision

    2024

  7. 7

    Better and 8x cheaper text-to-speech than AWS

    2022

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    Build Powerful Voice Agents

    2025

  9. 9

    Free text-to-speech generator with realistic AI voices

    2024

  10. 10

    Your content becomes conversations

    2024

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    Outtloud208

    Create unlimited audiobooks & podcasts from your documents!

    2025

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    Free and open-source AI to turn voice into structured notes

    2024

  13. 13IM

    A few years ago, right after high school, I decided to try to make a simultaneous translation app for Android as a side project, it took longer than expected (about 2 years) and I had to make a lot of compromises (I had to use Google's API and therefore make users use a developer key because at the time there were no free solutions for speech recognition and translation that had good quality). At the end of university, I decided to pick it up again and finally, using OpenAi's Whisper for speech recognition and Meta's NLLB for translation (with both running locally on the phone), I managed to…

    2024 · github.com

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    HearIt81

    Create your own audio books from any file for free.

    2020

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    Turn instantly any article into a podcast with one click

    2024

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    Kuluko145

    Turn your ideas into 3h+ custom Audiobooks

    2024

  17. 17PT

    Hi HN! I'm stoked to share a project I've been working on called PDF to Podcast. It's a free, open-source tool that automatically converts PDF documents into engaging, informative podcast-style audio content using large language models and text-to-speech tech. Inspiration: The idea for this project came from the NotebookLM demo at Google I/O, where they showcased generating audio dialogue from uploaded PDFs and other sources. However, that audio feature hasn't been publicly released yet, and I wanted to challenge myself to build something similar using existing tools and APIs. How it…

    2024 · pdf-to-podcast.com

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    ElevenLabs & Spotify make audiobook publishing effortless

    2025

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    Convert text to audiobook-quality sound

    2024

  20. 20OI

    Hello HN community! I'm excited to introduce a project I've recently launched: Oration, an iOS app designed to convert PDFs into audiobooks. This idea was inspired by my experiences as an engineering student with ADHD, struggling to engage with dense academic papers. Relying on Text-to-Speech tools, despite their robotic quality, was a workaround for me and others with similar learning preferences or challenges, such as Dyslexia. Recognizing the limitations of existing tools—difficulty with complex formats, inability to skip over citations or footnotes, and inadequate handling of tables,…

    2024 · oration.app

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    Generate endless looping sound effects with a single prompt

    2025

  22. 22

    Turn your voice into audiobook & podcast

    Oct 2025

  23. 23OA

    QuickPiperAudiobook locally generates an mp3 audiobook on Linux with one easy command. It can convert PDFs, epub, mobi, and many more by using ebook-convert. It uses any piper TTS model, and thus supports a wide variety of languages. I've had great success using it to read more while reducing eye strain and computer usage. I think I've probably read 30 or so books this way now over the past year. Being able to listen to any content you want in audio form free and offline while going for a walk is extremely handy. I hope it helps you as well! Cheers

    2024 · github.com

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    High quality text transcription with OpenAI's whisper on Mac

    2023

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