Altered Studio vs eSpeak NG
Altered Studio
altered.ai
eSpeak NG
github.comSide by side
| Figure | Altered Studio | eSpeak NG |
|---|---|---|
| Price from | $30/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 6 | 2 |
| Spec score · Text-to-Speech Software | 9.5 (#1) | 8.9 (#16) |
| Spec score · Text-to-speech tools | 9.3 (#6) | 8.7 (#37) |
| API access | The FAQ says API access is offered to Enterprise customers for integrating Studio into other systems. | Yes |
| Free plan | Yes | Yes |
| Integration | Google Drive integration supports importing, sharing and exporting audio files. | It is available as a command-line program, a shared library, and a Windows SAPI5 version for compatible screen readers and other programs. |
| Self-hosting | Enterprise deployments can use on-premise compute, and local servers can keep processing traffic inside an intranet. | The project publishes source code and build instructions, allowing local compilation and installation. |
| What it does | Altered Studio combines speech-to-speech voice morphing, text-to-speech, cloning, transcription, translation, dubbing and audio editing in one platform. | eSpeak NG is a compact text-to-speech synthesizer supporting more than 100 languages and accents. |
Plans
Altered Studio
- FreeFree
- Creator$30 a month
- Professional$90 a month
- Creator$360 a year
- Professional$1,080 a year
- EnterprisePriced on request
In their own words
Altered Studio
Altered Studio combines voice transformation and audio production tools for creating professional voice content. Its Speech-to-Speech and Performance-to-Performance morphing changes a voice while retaining the speaker’s performance. Other tools include text-to-speech, voice cloning, AI voice cleaning, denoising, audio editing, DSP effects and batch processing. Studio supports transcription and translation in 75+ languages, and text-to-speech voice-over in 70+ languages. A Rapid Voice Clone can be made from 4–8 seconds of audio; custom voice models are available by contacting Altered. The online Voice Editor can work with Google Drive audio, while RealTime Pro routes audio through a virtual microphone to apps including Discord, Zoom, Microsoft Teams and Google Meet. The free plan includes 3 minutes per month of voice morphing and 10,000 AI tokens. Creator costs $30 a month billed annually; Professional costs $90 a month billed annually. Desktop use requires a Windows PC with an 8GB+ Nvidia GPU, and mobile devices are not currently supported.