Expressivo Jacek
Expressivo Jacek was a Polish text-to-speech voice engine featuring a male voice named "Jacek." Published by IVO Software (later acquired by Amazon as Ivona), it worked as a standalone TTS reader and as a Windows SAPI voice used by screen readers and other applications.
What it did
The program read Polish text aloud using a male synthesized voice. You pasted text into the application, clicked Play, and Jacek read it. It could also read text selected in any Windows application through a keyboard shortcut. Export to MP3 or WAV created audio files from text for offline listening.
As a SAPI-registered voice, Jacek worked with any Windows application that used the speech API - screen readers for visually impaired users, e-learning software, and document readers. Speed and pitch were adjustable, and a custom dictionary corrected mispronounced words.
Advantages
- Natural-sounding Polish male voice for its era
- SAPI integration for system-wide use
- MP3/WAV export capability
- Custom pronunciation dictionary
Drawbacks
- Voice quality outdated compared to modern AI synthesis
- No longer available for purchase
- Commercial license was required
- Amazon Polly, Azure Speech, or ElevenLabs offer better Polish voices
Who it was for
Expressivo Jacek served Polish users needing text-to-speech - for accessibility, proofreading, or audio content creation. The Ivona technology behind it was acquired by Amazon and powers Amazon Polly cloud TTS. For current Polish TTS, Azure Speech Services and Amazon Polly offer neural voices far more natural than Jacek.
Frequently Asked Questions
What was Expressivo Jacek?
What happened to Ivona voices?
What Polish TTS options are available now?
Features & How-To Guide
| # | Feature | How to use |
|---|---|---|
| 1 | TTS with Polish Jacek voice | Tools › Voice Settings › Select Voice › Jacek. High-quality Polish male IVONA voice with natural prosody. |
| 2 | Read multiple file formats | File › Open Document. Supports DOC/DOCX/XLS/PDF/RTF/ODT/HTML/TXT. Text is extracted automatically. |
| 3 | Read selected text | Select text in any application › Press Ctrl+Alt+R. Expressivo reads the selection without switching windows. |
| 4 | Text export to audio file | File › Save as Audio › Choose format (MP3/WAV/OGG) › Save. Converts text to an audio file. |
| 5 | Clipboard monitor | Tools › Clipboard Monitor › On. Automatically reads aloud text copied to the clipboard (Ctrl+C in any application). |
| 6 | SAPI 5 voices compatibility | Works with any SAPI 5 voice (Microsoft Anna/Cepstral and others). Switch voice in Tools › Voice Settings. |
| 7 | Reading speed and pitch adjustment | Speed slider on the toolbar (50%-300%). Pitch in Voice Settings › Advanced for SAPI voices. |
| 8 | RSS reader 2 | Tools › RSS Reader › Add Feed URL. Fetches RSS headlines and reads new article titles aloud. |
| 9 | Multi-tab interface | Open multiple documents in separate tabs. Each tab retains its reading position and voice settings. |
| 10 | OCR module (S2G package) | Drag an image (JPG/PNG/BMP/TIFF) containing text onto the program window. OCR extracts the text and loads it for reading. |
| 11 | New email notification | Tools › Mail Notifier › Enter IMAP/POP3 credentials. The program announces the subject of new messages when they arrive. |
| 12 | Alarm reminder | Tools › Clock Reminder › Set an interval (e.g. every 30 minutes). The program announces the current time by voice. |
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