Upload recordings or record directly, select from 3,000+ expressive studio AI voices, and transform speech with realistic cadence and emotion.
No credit card required • Get 50,000 free credits when you sign up
Upload Audio
Upload or record your audio
Choose Voice
Select a voice or style
Adjust Settings
Fine-tune voice & effects
Preview
Listen and compare
Export
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Drag & drop audio file here
or click to upload
MP3, WAV, M4A, OGG, FLAC (Max 200MB)
my-voice.mp3
00:42 · 6.8 MB
Estimated time: ~ 10–30 seconds
Legacy frequency shifters and complex audio tools make speech transformation sound unnatural and time-consuming.
Traditional pitch-shifters merely shift frequencies, resulting in hollow, nasal, and mechanical robot sounds.
Swapping voice talents requires rehiring voice actors and repeating time-consuming recording sessions.
Requires specialized sound engineering skills, heavy DAW installations, and endless equalizer tuning.
A streamlined workflow that preserves original speech content and expressive delivery.
Drag & drop MP3, WAV, M4A, OGG files or record speech directly using your browser microphone.
Select from 3,000+ expressive AI voices (Realistic, Anime, Character, Celebrity) and adjust Pitch, Speed, Clarity.
Listen to dual waveform comparison between original and changed voice, then download studio-quality 320 kbps MP3.
Intuitive audio tools giving you complete control over vocal timbre, realism, and style.
Review original and transformed audio side-by-side on synchronized waveforms to verify quality.
Vast collection covering realistic human speech, anime personas, game characters, sci-fi robots, and celebrity styles.
Automatically removes background noise, breath artifacts, and room reverb before applying new AI vocal timbre.
Effortlessly calibrate Pitch (-12 to +12), Speed (0.5x – 2.0x), Clarity, Stability, and emotion intensity.
Direct comparison between modern neural AI conversion and basic legacy pitch shifting.
Flexible credits, no surprise fees. Upgrade or cancel anytime.
All Yupvox tools share a unified credit balance. You can freely allocate credits across TTS, Audio, and Video dubbing.
99,000 credits = ~99,000 characters (~16,500 words, ~25 book pages or ~2 hours of narration).
99,000 credits = ~33 minutes of multi-speaker AI audio translation & expressive voice dubbing.
99,000 credits = ~16.5 minutes of AI video dubbing, subtitle masking & 4K MP4 re-rendering.
| Plan | Credits / Cycle | Text to Speech | Audio Dubbing | Video Dubbing |
|---|---|---|---|---|
| Free ($0) | 50,000 | 50,000 characters (~1h) | ~16.6 minutes | ~8.3 minutes |
| Lite ($1.0 / $2) | 99,000 / month | 99,000 characters (~2h) | ~33 minutes | ~16.5 minutes |
| Starter ($4.5 / $9) | 999,000 / month | 1,000,000 characters (~20h) | ~333 minutes (about 5.5h) | ~166.5 minutes (about 2.7h) |
| Growth ($9.5 / $19) ⭐ | 2,499,000 / month | 2,500,000 characters (~50h) | ~833 minutes (about 13.8h) | ~416.5 minutes (about 6.9h) |
| Pro ($14.5 / $29) | 3,999,000 / month | 4,000,000 characters (~80h) | ~1,333 minutes (about 22.2h) | ~666.5 minutes (about 11.1h) |
Yupvox AI analyzes pronunciation, intonation, and speech content from your input audio, then reconstructs the speech using your chosen target AI voice model while faithfully preserving original pauses and tempo.
We support all major audio formats including MP3, WAV, M4A, OGG, FLAC, AAC with file sizes up to 50MB (or up to 200MB in Studio). You can also record directly with your microphone.
Strictly private. Your audio files are encrypted and processed solely for your requested voice conversion task, never shared with third parties.
Text to Speech generates speech from written text, while Voice Changer transforms the vocal timbre directly from an existing audio recording, preserving 100% of the original speaker’s cadence, emphasis, and emotion.
Each conversion consumes 100 credits per audio file. When creating a new free account, you receive 50,000 complimentary credits to explore all features across Yupvox.
Upload your recording or record directly, explore 3,000+ studio voices, and receive 50,000 free trial credits.