Your audio and outputs
By uploading a file, you confirm that you own it or have permission to process it with this service. You keep the rights you already have in your audio. Separation does not transfer ownership of the recording or create permission to publish, remix, sample or distribute the original or the output. You are responsible for deciding whether your planned use of a result is allowed.
Do not upload material that is unlawful, infringes another person's rights, or contains content you are not authorized to submit to a processing service. Do not attempt to bypass the daily limit, interfere with other jobs or probe private files or APIs. We may refuse or remove a job that violates these terms or threatens the service.
Service limits
Two jobs per UTC day are free, shared across StemVocal music separation, audio transcription and video transcription, subject to fair-use limits. Free music separation runs in our cloud by default and, on a computer, continues in your browser when the free cloud allowance is unavailable or a request is outside the free cloud limits; phones and tablets wait for the free cloud allowance instead. Free cloud separation handles files up to 10 minutes and returns vocals and instrumental tracks, or all six tracks for Drumless and Four stems; when the free cloud allowance is unavailable, supported files continue in a computer's browser, which provides six WAV tracks with optional MP3 copies made on the device. Device memory, storage, codecs and processing speed affect browser availability. Download browser results before resetting or closing the tab. Paid separation uses one credit or Unlimited, runs in our cloud and returns all six tracks. Cloud jobs upload audio to temporary storage with one-day result access. Automated or bulk use of free processing is not permitted. See privacy for the allowance and retention details.
The tool is provided as available. We do not guarantee uninterrupted access, perfect separation, or fitness for a particular production or legal use. To the extent permitted by applicable law, we are not responsible for loss caused by unavailable processing or by a user's publication or use of an output. These terms do not limit rights that cannot legally be limited.
Transcription on the StemVocal sites
The audio studio and video studio share this account, wallet and daily free allowance. Their free recordings run in the browser, up to 30 minutes / 1 GB, with browser codec support required. Paid cloud recordings may be up to three hours / 1 GB and can include speaker labels. Free processing never starts a Modal job. Paid transcription costs one credit per started 30 minutes of actual audio. We reserve the estimated cost when you explicitly start a paid job, then return any surplus when the processor verifies its duration. Failed jobs return all reserved units to the original grants with their original expiry and holds. Their transcription terms describe editor exports, accuracy and retention.
Plans and payments
Prices appear on our pricing page in US dollars. Buy a pack or monthly plan through Stripe Managed Payments without signing in first. Your purchase becomes available in the same browser after payment. Use the checkout email to restore credits on another device. Free separations remain available without an account.
Packs are one-time purchases with no expiry. Unlimited renews monthly until canceled in the payment portal, with access through the end of the paid period. It includes music separation and audio/video transcription across StemVocal with no daily or monthly file-count limit. Music files remain limited to 80 MB and 10 minutes; transcription files to 1 GB and three hours. Two jobs can be active per account, subject to service capacity. Unlimited is for personal use; automated bulk processing, resale and account sharing are not included. Existing monthly credit plans retain their original price, allowance and expiry. Checkout shows the final total, applicable tax, currency and renewal interval before payment.
The monthly Music plan adds 50 credits for music separation for each paid billing period and renews until canceled. Our transcription sites offer a separate monthly Transcription plan with 60 credits for audio and video transcription. Plan credits work only for their named service, are used before pack credits, and expire at the end of their billing period; unused credits do not roll over. Packs and Unlimited work across StemVocal. One account can hold both the Music and Transcription plans, but not two subscriptions that cover the same service, such as Unlimited and Music.
One credit covers one completed separation and all six tracks in both MP3 and WAV formats. Starting a paid job requires an explicit choice; free jobs never spend your credits automatically. A credit is reserved while a paid job is active and spent when all outputs are ready. Failed or expired processing returns the credit to its original allowance, with its original expiry. Refunds or disputes may adjust or suspend the associated allowance. Pending refunds or disputes hold Unlimited access; a full refund or lost dispute ends the affected paid period. A completed partial refund does not shorten it. Two paid jobs can be active per account, within available service capacity.
Paid and free cloud music separation use the same models, with MP3 and WAV output; paying does not change the separation model. When a free separation continues in your browser, it uses a different model, so the result can differ. Repeat downloads of a cloud result cost no extra credit until its one-day access expiry. Starting a new cloud separation is a new job.
For purchase or refund help, contact help@acapellaextractor.com. Any mandatory consumer rights still apply.
When your account offers Change plan, you can review an available monthly plan before confirming. The new plan starts at the next renewal at the displayed price, plus applicable tax, with no immediate charge or proration. Existing credits keep their original expiry. Keep current plan removes a pending change. With a change pending, Cancel renewal removes that change and opens Stripe for your final cancellation confirmation. Retired monthly offers cannot be selected again after switching away.
Questions and copyright reports can be sent to hello@acapellaextractor.com. See the privacy policy for file and job-record retention.