Yes. A clear MP3 can be uploaded directly and used to train an RVC .pth model. This is model training, not an instant file-format conversion: the MP3 is decoded and prepared as training data before the cloud GPU begins learning the voice.
You do not have to convert the MP3 to WAV yourself just to satisfy the uploader. Converting a lossy MP3 into WAV also cannot restore audio information that compression already removed.
Active trainings
Selected job
Training details
Working
Model—
Training strength—
Elapsed time—
Stage 1 of 6Receiving audio
Epoch 0 of 2000%
Epoch progress comes directly from the running RVC trainer.
The audio you sent
PTH
Latest training checkpoint
An inference-ready early model is available while training continues.
Create a free account and your first voice training is free. It also comes with three free voice conversions, each up to 5 minutes long. The vocal separator, lead and back separator, noise remover, reverb remover and Vocal Enhancer each include one free use, up to five minutes. No account needed.
Checking eligibility...Taster pack
$5 training balance
$4.99$4.99non-expiring
One-time, not a subscription. At current quotes, $5 covers up to 11 one-minute tests at 100 epochs, 4 five-minute runs at 180 epochs, or 2 ten-minute runs at 180 epochs. The exact cost and balance left are shown before training.
Starter pack
$10 training balance
$8.99$8.99non-expiring
Pay different amounts for short tests and longer, stronger training.
Best value
$27.50 training balance
$24.99$24.99includes $2.51 extra
Best for creators training several voices or comparing epoch settings.
Monthly conversion plans
More voice conversions
Use the included free minutes first. Subscribe only when you need more voice conversions; monthly plans also include renewable training credit.
Every tool, unlimited, with separate-file batch processing. Train multiple voices at once.
One-time training
Pay once. No subscription.
Train one voice
$5.00once
1 training run Any length of training audio, up to 500 epochs per voice. Includes 3 voice conversions.
Train three voices
$10.00once
3 training runs Any length of training audio, up to 500 epochs per voice. Includes 9 voice conversions.
Your voice. Your files. Download your models and use them anywhere RVC runs.
.pth.indexZIP
Starter
For occasional projects
$8.99$8.99per month
Then $8.99 per month.
$5 monthly training credit and 30 voice-conversion download minutes.
Creator
For regular cover makers
$14.99$14.99per month
Then $14.99 per month.
$10 monthly training credit and 90 voice-conversion download minutes.
Pro
For high-volume work
$24.99$24.99per month
Then $24.99 per month.
$20 monthly training credit and 240 voice-conversion download minutes.
Secure checkout by Lemon SqueezyCancel any time from your accountYour model files are yours to keep
A few things to know
Can I hear it before I pay?
Yes. Your first training is free, and every model comes with a listening proof first.
How do the Lite allowances work?
Lite includes two trainings per paid billing month and 10 conversions per 24-hour window. A new window starts with your first conversion; all 10 renew together 24 hours later. Your converter shows the reset in your local time. A conversion counts once when it starts and comes back if it fails; listening and downloads are free. Unused allowances do not carry over. Both subscriptions include unlimited vocal separation, lead/back separation, noise removal, reverb removal and Vocal Enhancer.
What does unlimited actually mean?
No minutes to count on any tool, every output included, up to 500 epochs per training run. Fair use applies. Unlimited also unlocks batch processing: drop multiple files, start once and get a separate result for each. Free and Lite process audio files one at a time. Multi-file training datasets and manual mixes are unchanged.
Do I keep my voices if I leave?
Yes. Every model is a .pth, .index and ZIP you download, and they work anywhere RVC runs.
How do I cancel?
One click from your account, no email needed. You keep everything until the end of the period you paid for, a month or a year.
What if a training fails?
You are not charged for it. A failed or cancelled run releases what it reserved, and an upload that never arrives does not spend your free run.
Do I need an account to pay?
No. Pay with any email. Sign in with that same email on any device and everything you paid for is there.
What happens to my audio?
It is processed for your job and never shared. New trainings keep your original recordings as a private dataset ZIP, plus an MP3 listening preview. Your dataset follows your voice's retention: paid runs stay until you delete them; free runs are kept for 7 days. Older voices may only have the MP3 listening copy. Temporary training files are removed after validation.
Who sees my card?
Lemon Squeezy, the merchant of record. NiceVois never sees card details, and tax is handled at checkout.
Wrong charge or an unused month? Email info@nicevois.com with the checkout email and date; it is reviewed with Lemon Squeezy and returned to the original payment method. Refund policy · Privacy
Secure checkout is being prepared.
Persistent cloud storage
Your model library
Your voice models are files you own. Download them once and no platform can take them away.
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Paid model packages stay saved until you delete them.
Your model files and private MP3 listening preview remain available after closing the browser. New trainings also keep the original recordings in a downloadable dataset ZIP. Paid voices and their saved datasets stay until you delete them. Free voices and their saved datasets are kept for 7 days; download them before then. Older voices may only have the MP3 listening copy. Temporary training files are removed after validation.
— used
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When an MP3 is good enough
An MP3 can work well when the voice is clear, the bitrate is reasonable, and there is little background sound. Listen for watery high frequencies, ringing, swishy consonants, clipping, or heavy music bleed. Those problems are part of the training signal and may be repeated by the model.
Prefer the original MP3 over a copy that has been repeatedly exported.
Use one target speaker and remove sections containing other voices.
Do not increase the sample rate or bitrate and expect lost detail to return.
If you have the original WAV or FLAC, use that instead of the compressed derivative.
What the service does with the MP3
The official RVC training workflow reads supported source audio through FFmpeg, converts it into the representation required by preprocessing, and then extracts the features used for training. NiceVois runs that workflow in a pinned cloud environment and validates the exported model before showing the downloads.
MP3 versus WAV for RVC training
Question
MP3
WAV
Can this tool upload it?
Yes
Yes
Compression
Lossy; quality depends on the source and encoding
Often uncompressed or lossless
File size
Usually smaller
Usually larger
Best choice
Use when it is the cleanest original you have
Prefer when both versions come from the same clean recording
What you receive
The finished model is available as a named .pth, a matching .index, and a ZIP containing both. The public workspace retains the completed files for the displayed seven-day window, and you can delete an inactive job from your private model library at any time.
Have a clean MP3?
Upload it directly and let the service prepare the training dataset.