You can isolate vocals from a song by uploading an MP3, WAV, FLAC, M4A/AAC, or OGG file to a stem splitter, which separates the track into five stems.
When you need an isolated vocal track for a project, the first step is separating the voice from the rest of the music. You can isolate vocals from a song by uploading an audio file to a stem splitter. This process takes a mixed audio track and divides it into individual components, which are called stems. Using our tool, you receive five specific outputs from a single split. These five outputs are the vocals, the instrumental, the drums, the bass, and a track containing the other remaining elements. The instrumental track is created by adding the drums, bass, and other elements together.
How do you prepare a file to isolate vocals from song?
Before you upload your music, you need to check your file format and file size. The stem splitting tool accepts five specific audio formats. You must upload an MP3, WAV, FLAC, M4A/AAC, or OGG song. If your audio is currently in a different format, you must convert it to one of these five accepted formats before proceeding with the upload. When preparing your file, check the file extension to ensure it is exactly MP3, WAV, FLAC, M4A, AAC, or OGG. If you try to upload a video file or a different audio format, the system will reject it.
The file you choose must also meet the strict size and length limits. The maximum file size you can upload to the server is 90 MB. You must also ensure the file size is under the 90 MB limit before you begin the upload process. The maximum length of the audio track is 10 minutes. This 10-minute limit accommodates most standard music tracks, but you cannot upload long continuous mixes or full album files that exceed this duration. If your file is larger than 90 MB, it will not be accepted by the system.
You must have the actual audio file stored on your computer or mobile device. Links to streaming platforms, such as YouTube links, are not accepted. You cannot paste a URL to isolate vocals from song; the tool only processes direct file uploads. Additionally, users must have the right to process the audio they upload. If you are handling material, ensure you have the necessary rights. Any copyright notices should be directed to the contact email at contact@stemsplitai.com.
How do you upload and isolate vocals from song?
To start the separation, navigate to the acapella extractor page or the main tool. You can select your MP3, WAV, FLAC, M4A/AAC, or OGG file from your device's storage.
You have a daily limit for how many files you can process. Splitting and previewing are free, but the amount depends on your account status. If you use the site without creating an account, you can split 1 song a day. If you sign in to an account, this limit increases, allowing you to split 5 songs a day. This daily allowance lets you test different tracks on the platform.
Once you select your file, the upload begins. The time this takes depends on your file size up to the 90 MB limit.
What happens during the AI separation process?
After the upload finishes, the audio goes to our own servers for processing. The separation is handled by Demucs htdemucs. This is an open-source model from Meta AI research. This model analyzes the mixed audio and identifies the distinct frequencies of the different instruments and voices.
The tool does not just pull out the vocals. One split gives five stems. The table below shows exactly what the AI generates from your uploaded file:
| Stem Name | Description |
|---|---|
| Vocals | The isolated voice track separated from the music. |
| Instrumental | The drums, bass, and other added together. |
| Drums | The isolated percussive elements from the song. |
| Bass | The isolated basslines from the song. |
| Other | The remaining sounds that are not vocals, drums, or bass. |
You might use the instrumental maker if you only need the backing track, or the vocal remover if you want the mix without the singer. The AI model run on our own servers processes all of these stems simultaneously.
How do you preview the isolated stems?
You do not have to download the files blindly. Splitting and previewing are free. The preview comes first, usually within a few minutes after the upload completes.
Every split plays a 30-second preview of all five stems. You can listen to the isolated vocals, the drums, the bass, the other instruments, and the combined instrumental track directly on the site. The 30-second preview allows you to hear the quality of the Demucs htdemucs separation before you spend any credits. You can switch between the vocals, instrumental, drums, bass, and other tracks during this 30-second window.
For most songs, this 30-second preview starts from 0:30. However, if you upload a song under a minute, the 30-second preview will start from the start.
Processing the whole song takes a few minutes more than the initial preview. You can listen to the 30-second segment while the servers finish separating the rest of the track, up to the 10-minute limit.
How do you download your separated files?
While splitting and previewing are free, downloading a whole song costs 125 credits. Credits are only spent on a download.
When you spend 125 credits, which is $0.50, you receive all five stems. The download includes MP3 (320 kbps) and WAV (16-bit, 44.1 kHz) files. The MP3 files are smaller and easier to share, while the WAV files provide uncompressed audio for professional editing.
To get credits, you make a one-time $5 purchase. This adds 1,250 credits to your account. Because each download costs 125 credits, 1,250 credits is enough for 10 songs. The one-time $5 purchase gives you 1,250 credits immediately. Since there is no subscription, you do not have to worry about recurring monthly fees. You simply use your credits whenever you need to download a whole song. All payments are through FloatPass.
You can check the pricing page for details. You only pay when you decide you want the full-length MP3 and WAV stems.
What mistakes should you avoid when splitting audio?
When you use a karaoke maker or stem splitter, certain errors can interrupt your workflow. Here are the concrete limits and rules to remember.
First, do not attempt to upload unsupported file types. Upload an MP3, WAV, FLAC, M4A/AAC, or OGG song.
Second, watch your file size and length. Do not upload a file over 90 MB or 10 minutes long.
Third, remember that links such as YouTube are not accepted.
Fourth, be aware of the daily limits: 1 song a day without an account and 5 songs a day when signed in.
Finally, remember that uploads are deleted after 1 day and stems after 7 days. Files are only available to the person who uploaded them. If you want to keep the MP3 and WAV files permanently, you must download them to your own hard drive before the 7-day period expires. Once the files are deleted from the server, you would need to upload the song and spend another 125 credits to download the stems again.
Frequently asked questions
How much does it cost to isolate vocals from song?
Splitting and previewing are free. Downloading a whole song costs 125 credits, which is $0.50, for all five stems.
How long does it take to isolate vocals from song?
The preview comes first, usually within a few minutes. Processing the whole song takes a few minutes more.
Can I use a YouTube link to isolate vocals from song?
No, links such as YouTube are not accepted. You must upload an MP3, WAV, FLAC, M4A/AAC, or OGG song.
What file formats do I get when I download the stems?
You receive all five stems as MP3 files at 320 kbps and WAV files at 16-bit, 44.1 kHz.
How long are my files kept on the server?
Uploads are deleted after 1 day and stems after 7 days. Files are only available to the person who uploaded them.