VoiceIndex AI

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Create natural AI voiceovers, transcribe audio/video to text, and generate SRT subtitles instantly. Over 100 voices, no software needed.

Description

VoiceIndex AI is an all-in-one AI voice workspace designed to streamline the audio content creation and processing workflow. It provides professional-grade text-to-speech (TTS) and speech-to-text (STT) capabilities directly in the browser, eliminating the need for software installation. The platform positions itself as a versatile tool for creators, educators, and office teams, offering over 100 natural voices across multiple languages, speaker diarization for transcriptions, and one-click export of SRT/VTT subtitle files. Its core features are built around user privacy with a strict 'use-and-delete' data policy, ensuring uploaded files are automatically purged after processing. The intuitive three-step process makes it accessible for tasks ranging from short video dubbing and audiobook production to meeting transcription and notification audio generation.

Installation

Not sure where to start — ask an assistant to walk you through:

Features

🎤 AI Text-to-Speech with 100+ Voices
VoiceIndex AI provides a vast library of over 100 high-quality, natural-sounding voices in languages like Chinese, English, and Japanese. Users can fine-tune output with style, role-play, emotion intensity, speed, pitch,
🔊 Speech-to-Text with Speaker Diarization
The platform accurately transcribes uploaded audio or video files (MP3, MP4, etc.) into editable text. Its intelligent speaker diarization feature automatically identifies and labels different speakers, making it perfect
🛡️ Privacy-Focused & Subtitle Export
VoiceIndex AI operates on a strict 'use-and-delete' privacy policy, ensuring user audio files are automatically deleted after processing and never used for AI training. Alongside secure processing, it offers seamless exp

Use cases

Generate TikTok voiceovers quickly.
Transcribe team meetings with speakers labeled.
Create audiobook chapters from long text.
Add subtitles to YouTube videos instantly.
Produce clear notification audio for apps.

FAQ

VoiceIndex AI is an all-in-one AI voice workspace that provides text-to-speech, speech-to-text, and subtitle generation tools directly in your web browser.

Yes, it offers a free plan with no registration required, including a daily quota for text-to-speech and core transcription features.

It supports common formats like MP3, WAV, M4A, MP4, and MOV for upload and processing.

Accuracy can reach over 98% for clear audio, and it includes speaker diarization to identify different speakers.

Yes, the service uses a 'use-and-delete' policy; files are automatically deleted after processing and not used for training.

Use proper punctuation in your script and experiment with different voices, speech speeds, and emotion intensity settings.

Yes, upload a video file, and the tool can transcribe the audio and export SRT or VTT subtitle files with timestamps.

The platform currently supports processing single audio/video files up to 1 hour in length.

Emotion intensity controls how strongly a voice style is expressed, with settings from Low (natural) to Very High (dramatic).

You can contact the support team via the provided email for inquiries about higher quotas for long-form or frequent usage.

Specs

Type Tool
SectionAudio
Pricing has a free tier
Platform Web only
Systems web
Hostingcloud
Installsaas
Site languageen

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