Altered Studio vs TTSReader

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.

TTSReader converts text and documents into speech, reads webpages aloud, and can create downloadable audio. It supports PDF, DOCX, TXT, CSV, and EPUB files, with MP3 and WAV listed as export formats and a maximum input of 200000. Voices come from Google, OpenAI, xAI, Microsoft, and proprietary AI providers. During playback, the reader highlights the current text and remembers the article and position so listening can resume later. Users can edit text while it plays and combine voices, languages, and speeds in one file. The service identifies proofreading, education, accessibility, language learning, audiobook creation, and voice-over production as uses. Its website plugin is free and includes playback controls, voice and speed selection, automatic scrolling, and saved preferences; the maker says it does not track users, use cookies, or show ads. API access is available, though the synchronous API recommends only a few thousand characters, calls 5k safe, and notes requests can time out after five minutes. The Free plan costs nothing and is for personal use only, with 5k premium-voice characters. Premium is $10.99 a month for one user and 1,000,000 premium characters per month. Pay-as-you-go plans cost $10 a month for 200,000 characters, $32 a month for 1,000,000, or $300 a month for 10,000,000; credits expire after one year, extended by each new purchase.