Altered Studio vs Voicebox
Altered Studio
altered.ai
Voicebox
voicebox.shSide by side
| Figure | Altered Studio | Voicebox |
|---|---|---|
| Price from | $30/mo | $1/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 6 | 3 |
| Spec score · Text-to-Speech Software | 9.5 (#1) | 8.7 (#32) |
| Spec score · AI voice changers | 9.5 (#1) | 8.8 (#14) |
| Spec score · Voice Changer Software | 9.5 (#1) | 8.9 (#8) |
| Spec score · AI voice cloning tools | 9.5 (#1) | 8.7 (#12) |
| Spec score · Text-to-speech tools | 9.3 (#6) | 9.4 (#2) |
| API | An API is available to Enterprise customers for integrating Altered Studio into other systems. | Voicebox exposes a local REST API for speech generation, voice profiles, model status, generation history, and health checks. |
| API access | The FAQ says API access is offered to Enterprise customers for integrating Studio into other systems. | Yes |
| Free plan | Yes | Yes |
| Licence | Terms describe Attribution, Creator, Commercial and Streaming licences rather than an open-source licence. | The source repository is released under the MIT licence, permitting use, modification, distribution, sublicensing, and sale subject to the notice requirement. |
| Product | Altered Studio combines multiple Voice AI technologies in one platform for creating professional voice content. | Voicebox is a free, open-source local AI voice studio for voice cloning, speech generation, dictation, and agent voice output. |
| Self-hosting | Enterprise deployments can use on-premise compute, and local servers can keep processing traffic inside an intranet. | The backend can run locally or on a separate Docker or bare-host machine for remote-mode connections. |
| System requirements | Desktop local processing requires Windows with at least an 8GB Nvidia GPU such as GTX 1080, RTX 2070 or RTX 3050. | Minimum requirements are macOS 11 or newer, Windows 10 or newer, 8 GB RAM, 5 GB free storage, and a modern multi-core CPU; 16 GB RAM and a CUDA GPU are recommended. |
| Voice cloning | Users can make a Rapid Voice Clone with 4–8 seconds of audio; custom voice models are available by contacting Altered. | It can clone a voice from a few seconds of audio supplied by upload, microphone recording, or system-audio capture. |
| What it does | Altered Studio combines speech-to-speech voice morphing, text-to-speech, cloning, transcription, translation, dubbing and audio editing in one platform. | Voicebox is a local AI voice studio for voice cloning, text-to-speech, dictation, transcription, and agent speech. |
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.
Voicebox
Voicebox is a free, open-source local AI voice studio for voice cloning, speech generation, dictation, and agent voice output. Its desktop app can clone a voice from as little as three seconds of audio, supplied by file, microphone recording, or system capture. The maker lists seven text-to-speech engines for cloning, preset voices, and delivery control. A timeline editor supports multi-voice narratives, arranging tracks, trimming clips, and mixing conversations; effects include pitch shift, reverb, delay, and compression. Dictation uses a global shortcut to send transcripts to the focused text field or clipboard, with local Whisper models supporting 99 languages. MCP-aware agents such as Claude Code, Cursor, and Cline can speak through Voicebox, and a local REST API provides speech generation and related functions. The privacy policy says the offline desktop app requires no account and does not send recordings, profiles, transcripts, generations, or settings to the maker. Local is free with unlimited local generations and captures. Cloud and mobile sync are marked as coming soon, and cloud pricing and limits are not final.