How-to guide
How to remove drums from a WAV file
A WAV file avoids an extra lossy encoding step before drum separation. Check its duration as well as its file size before uploading: DrumSplit accepts files up to 100 MB and 8 minutes, whichever limit you reach first.
Step-by-step
- Open DrumSplit.io. No install, no account, no download.
- Upload your WAV file. Drag and drop or click to browse. It must be no more than 100 MB and no longer than 8 minutes.
- Choose your mode. Natural for recorded music, Puncher for EDM and hip-hop, Direct for drum-only WAV files.
- Wait for processing. A typical 3-4 minute song takes about 2-3 minutes. You can close the page; results are saved in My Splits for 24 hours and emailed.
- Download your stems. Kick, snare, hi-hats, toms, cymbals and (in Natural and Puncher) a drumless music track, all as 24-bit WAV.
Tips for better results
- In Natural or Puncher mode, DrumSplit returns seven files, all as 24-bit WAV in a ZIP: five drum stems, a drum bus and a music stem. Direct mode is for audio that is already drums only and returns the five kit stems and a drum bus, with no music stem.
- DrumSplit separates drums. It does not provide separate vocal, bass, or guitar stems.
WAV size and the two upload limits
Uncompressed WAV size depends on sample rate, bit depth, channel count, and duration. For stereo PCM, higher sample rates and bit depths use more space each minute. These approximate figures make it easier to estimate whether a file will fit; WAV headers add a small amount, and the duration cap still applies even when the file is small.
| Stereo WAV format | Approx. size per minute | Approx. duration at 100 MB | Effective maximum |
|---|---|---|---|
| 16-bit / 44.1 kHz | 10.6 MB | 9.4 minutes | 8 minutes, about 85 MB |
| 24-bit / 48 kHz | 17.3 MB | 5.8 minutes | About 5.8 minutes, size limit first |
| 24-bit / 96 kHz | 34.6 MB | 2.9 minutes | About 2.9 minutes, size limit first |
At 16-bit/44.1 kHz stereo, the 8-minute ceiling comes first. At 24-bit/48 kHz or 24-bit/96 kHz, the 100 MB size limit arrives first. Check file properties rather than estimating from duration alone.
Before you upload
- Keep the source dynamics. Do not normalize or add a limiter before separation. Work from the version you want separated.
- Keep the original sample rate. There is no need to resample just to upload. Resampling does not remove the duration cap.
- Check the channel layout. 5.1 and other multichannel files are not supported; convert those to stereo before upload.
- Trim excess silence or a long intro. Remove material you do not need if the source exceeds either limit. Note the trim point if you will align stems with a longer session.
- Do not convert to MP3 first. MP3 is accepted, but converting adds a lossy encode step and does not solve the duration limit. FLAC can reduce size, but the 8-minute cap still applies.
Choose Natural for recorded music. Puncher adds transient enhancement and is tuned for EDM, hip-hop, pop, and heavily compressed mixes. Direct is for already drum-only audio, such as a drum bus bounce, loop, break, or drum stem from another tool.
Importing the stems back into a session
After processing, extract the ZIP and import the WAV files into your DAW. DrumSplit's five drum files are kick, snare, hi-hats, toms, and cymbals; the other two files are the drum bus and the music stem with drums removed. Put the files at the same timeline position as the source, usually bar 1 when the source itself starts there. Do not place each file at its first detected sound. A quiet count-in or silence at the start is part of the alignment.
Keep stems at the same start point and length. If you trimmed the source, align them with that region, not the untrimmed original. For a session at a different sample rate, let the DAW handle playback conversion or convert the whole set consistently. The delivered files are 24-bit WAV; avoid converting individual stems differently from one another.
Sum the five drum stems to hear the separated kit together, and add the music stem to audition the reconstruction. In a null test, invert polarity on the reconstruction and compare it with the original. It will not normally produce perfect silence because estimated components may not sum to the original samples. First check that every file starts at the same sample and none was shifted or trimmed.
What to expect from separation
Separation does not create isolated microphone tracks. Cymbals and hi-hats can carry bleed from other bright sounds, and their reverb tails may remain in the music stem. Listen to the ends of phrases as well as the attacks.
Quiet ghost notes are among the hardest details to separate because they sit low in level beside the rest of the mix. Dense arrangements, overlapping cymbal crashes, distortion, and long effects can also make boundaries less distinct. Listen to the stems in the context where you plan to use them, and check both the start and end of the song for cutoffs or tails. If a section matters especially, inspect that passage before building an arrangement around the separation.
Common questions
Can I upload a WAV longer than 8 minutes if it is under 100 MB?
No. Both limits apply: a file must be 100 MB or smaller and no longer than 8 minutes.
Why is my short WAV over 100 MB?
Higher sample rates and bit depths increase uncompressed stereo WAV size. A 24-bit/96 kHz stereo file is about 34.6 MB per minute, so it reaches 100 MB at roughly 2.9 minutes.
Will the output have the same sample rate as my WAV?
The output is 24-bit WAV. If you need a particular session sample rate, import the files together and let your DAW handle playback conversion or convert the set consistently.
Why do the drum stems not cancel the original in a null test?
The stems are separated estimates and are not guaranteed to sum sample-for-sample to the original. Also verify that the files are aligned at the same start point before comparing them.
Can DrumSplit remove vocals or bass from my WAV?
No. DrumSplit provides drum stems and a music stem with drums removed. It does not output separate vocal, bass, or guitar stems.
Try DrumSplit
Upload a song to the drum splitter & drum stem separator and get 7 files: kick, snare, hi-hats, toms, cymbals, a drum bus and the music without drums. From $0.99 per split. No subscription. Purchased credits never expire.
Try DrumSplit