Make an instrumental of a song with your phone

3 steps with the app

1. 1

   Import and separate

   "Import a song", then "Separate" in Quality mode. Processing happens on the phone; a notification tells you when it's ready.

2. 2

   Adjust the instrumental

   Mute the Vocals stem. If needed, change the key (±6 semitones) or the speed (50 to 125%): one doesn't affect the other.

3. 3

   Save it

   Export as WAV or MP3 320 kbps, with or without the key and speed you chose.

Split into 2 stems with the same model as the app's Quality mode (htdemucs), computed on a computer for this demo: the result on a phone may differ slightly. Same loudness for each stem; MP3 128 kbps. Song and stems: NAUPLY's own material, no third-party song.

What an instrumental is for

Rehearsing a song before a gig or an audition, singing in your range by lowering the key, accompanying a choir, recording a cover for yourself: a clean instrumental makes all of this easier than the original song.

Keep a little voice if it helps: lower the Vocals stem's volume instead of muting it, and it becomes a discreet guide.

Offline and private

Separation is computed by the phone's processor. Your audio, your files and their names are never uploaded: the internet is only used for your NAUPLY account and this month's separation counter. Without a connection, even in airplane mode, 2 separations a month remain possible; they are counted when you're back online.

Free, and what counts

The free version only needs a NAUPLY account, no payment method: 10 separations a month, up to 15 minutes per song, no ads, valid for 6 months from activation (once per account). A cancelled or failed separation is given back; listening, mixing, exporting or reopening a song you already split doesn't count. The Premium and Pro editions of NAUPLY Stems, with the same licence as the desktop plugin, have no monthly limit.

Frequently asked questions

Is the changed key applied to the exported file?

Yes, if you choose so when exporting. You can also export the original instrumental.

How much space does a separated song take?

Android 8.0 or later, a 64-bit ARM processor and 4 GB of memory (6 GB recommended). Allow about 37 MB of phone storage per minute of music and per separated stem.

Can I also separate the drums or the bass?

Not on the phone yet: the app splits into two stems, vocals and instrumental. More stems for Premium and Pro are coming soon. NAUPLY Stems for desktop already goes up to 10 stems.

Is the app free?

The free version only needs a NAUPLY account, no payment method: 10 separations a month, up to 15 minutes per song, no ads, valid for 6 months from activation (once per account). A cancelled or failed separation is given back; listening, mixing, exporting or reopening a song you already split doesn't count. The Premium and Pro editions of NAUPLY Stems, with the same licence as the desktop plugin, have no monthly limit.

Can I publish my cover over the instrumental?

Splitting a song to listen to it, practise or study it at home is private use. Publishing a modified version of a copyrighted song (video, remix, uploaded cover) requires permission from the rights holders. When in doubt, work on your own songs or on royalty-free tracks.

Get the app

All about the NAUPLY Stems app for Android →

Read also

• Make a karaoke track for a birthday
• Separate vocals and music on Android, offline

Other uses of the app

• Remove vocals from a song
• Extract the acapella
• Make a karaoke track
• Find the tempo and key
• Practice track