- Free tool
- Open source · LGPL
- Windows
- Mac
Text-to-Mic
Speak in meetings with AI text-to-speech
Type or record what you want to say, then play natural speech through your speakers, headset or a virtual microphone. Free, open-source software for Windows and Mac; bring an OpenAI API key for AI voices and transcription, or use system voices without one.
- Latest version
- v1.4.1Latest version
- Platforms
- Windows & MacPlatforms
- System voice mode
- OpenAI key optionalSystem voice mode
Your words, delivered as speech
Text-to-Mic was built when a team member lost their voice and needed a more natural way to take part in meetings.
Text to virtual microphone
Type a message and play the generated voice to a meeting's virtual microphone, with a second output for your headphones.
Speech to speech
Record a rough spoken thought, transcribe it, and play it back in an AI voice, with optional rewriting or translation.
Voices, tones and shortcuts
Choose voices and tone presets, save common phrases, and trigger recording or playback with keyboard shortcuts.
GETTING STARTED
Set up Text-to-Mic
Download the build for your system, then choose how you want it to speak in meetings.
Download and open the app
Choose the Windows installer or archive, or download and extract the Mac archive before opening the .app.
Configure voices and output
Enter your API key if using AI features, select a voice, then choose headphones and Cable Input (VB-Audio) as output devices.
Select the meeting microphone
In Teams, Zoom or Google Meet, choose Cable Input (VB-Audio) as the microphone. Switch back to your physical mic when you need to speak directly.
Type or record, then play
Enter text and press Play Audio, or use Ctrl+Shift+0 to record and transcribe. Ctrl+Shift+8 replays the last audio.
A LOOK INSIDE
Explore the app
“I want to thank you for giving me back my voice. I have had a long road of having parts of my tongue removed for cancer over the years, with the last surgery being four and a half years ago and taking the remainder of my tongue, including my voice box. Not only have you given hope to people with laboured speech, which I have experienced in recent years, but you have also given people with no voice a voice. Kudos to you for adding text-to-speech to video conferencing tools like Microsoft Teams. I could never thank you enough for the gift you have given me.”
Niko
Text-to-Mic user · Member of the mute community
RELEASES
What has changed
v1.4.1Latest
System voice mode
Runs without an OpenAI API key for system voice text-to-speech. AI voices, speech-to-text and other AI features still require a key.
v1.4.0
Improved everyday use
UI and UX updates, latest-version checking, and remembered input and output device selections.
v1.3.5
More voices and control
More voices, improved preset scaling, a cancel shortcut and an option to hide the banner.
Full history (v1.0.3 – v1.3.0)
v1.3.0
Tone presets
Added tone of voice controls and preset management, alongside a refreshed interface.
v1.2.0
Saved phrases
Added reusable text presets and quality-of-life improvements.
v1.0.8
Added remappable hotkeys and moved the .env file to /config.
v1.0.7
Added keyboard shortcuts for recording, stopping and playback.
v1.0.6
Fixed audio channel sample-rate mismatches.
v1.0.5
Added AI text manipulation.
v1.0.4
Added input device selection.
v1.0.3
Fixed the record button and improved styling.
Download Text-to-Mic
Choose the latest build for your platform, or open All versions for earlier releases and checksums.
Windows
v1.4.1 · latest · 18 Aug 2025
SHA-256 3d217b78ec807b55… (EXE)
macOS
v1.0.5 · latest
Build it yourself
Source code
Review and compile the code yourself — handy if your virus scanner flags the build.
View source ↗Windows antivirus tools may flag an unsigned app that accesses the microphone and clipboard. You can inspect and build the open-source code yourself.
21 more files: earlier versions and alternative builds.
Frequently asked questions
No. AI features use an OpenAI API key billed by usage, separate from ChatGPT subscriptions. Check your API costs as you get started.
Yes. In v1.4.1, system voices provide text-to-speech without a key. Speech-to-text and AI rewriting require an OpenAI API key.
Install VB-Cable, set Text-to-Mic to output to Cable Input (VB-Audio), and select that virtual microphone in Teams, Zoom or Google Meet. Switch the meeting input back to your physical mic when you want to speak normally.
Yes. In Settings > ChatGPT Manipulation, enable AI manipulation and set a prompt (for example, to translate or tidy a transcript). This uses your API key.
You can send us a bug report or small improvement idea. More substantial custom extensions may involve a development charge; contact Scorchsoft to discuss the scope.
Explore more free resources
Assessments, articles, a podcast, books, guides and free tools — all free to use.
Free assessments
Score your AI readiness, opportunities, disruption risk or startup readiness in minutes.
Take an assessmentArticles and insights
Practical articles on building software, apps and AI for your business.
Read the articlesTech Toolkit podcast
Conversations on technology, AI and building digital products.
Listen to episodesBooks
Our founder's books on executing tech ideas, AI in business and project control.
See the booksGuides
In-depth guides to planning, building and running software projects.
Browse the guidesGlossary
Plain-English definitions of the software and AI terms you will meet.
Look up a termFree tools
Free, open-source AI desktop apps you can download and use today.
Get the toolsAll resources
Everything in one place: assessments, reading, listening and tools.
View all resources
Want to talk about your project?
Tell us what you’re trying to achieve and we’ll map the fastest credible path.