Export Stems to a DAW, Sample-Aligned

Why equal-length, sample-aligned stems matter

Every split from the stem splitter produces four stems that are exactly the same length as the source track and sample-aligned with it and with each other. That is not a small detail — it is what makes the rest of this workflow simple. Because every stem starts and ends at the same sample position as the original, you do not need to manually slide, trim, or time-stretch anything to get vocals, drums, bass, and other lined up in a session; they already match.

A quick preview, which processes only the first 30 seconds, is a fast way to judge whether a track will separate cleanly, but for a DAW import you want a full split, up to 10 minutes per file, so every stem covers the complete song.

Importing at bar 1 / 0:00

Because alignment is built into the export, the only thing that can break it is how you import. Create a separate track for each stem, and drag every one of them to the exact same starting point in the timeline — 0:00 in absolute time, which typically corresponds to bar 1 in a fresh project. Do not import one stem, nudge it to "feel right," and then add the next; if all four start at the same position, they stay in sync automatically, exactly as they were when they were split.

Sample-rate matching: stems are 44.1 kHz

The separation model behind the stem splitter processes audio at a fixed 44.1 kHz internally, so every stem you export comes out at 44.1 kHz regardless of whether your source file was originally 44.1, 48, or 96 kHz. Set your DAW project to 44.1 kHz before importing, or make sure your session is configured to resample on import, so the stems play back at the correct pitch and speed. If your project genuinely needs a different working rate, resample the stems to match your session first — the export sample rate option, or the audio converter, can do this — rather than importing files at mismatched rates and hoping your DAW compensates correctly.

Naming your stems for a multi-song session

Each exported file is already clear about which stem it is — vocals, drums, bass, or other. That is enough for a single song, but if you are pulling stems from several tracks into one project, it is worth renaming the files with a short prefix, such as the song title, before you import them. A folder full of identically named "vocals.wav" files from different songs is an easy way to overwrite or misplace a stem later.

Checking phase and bleed by summing

Before you build too much around a split, do two quick checks. First, solo each stem individually and listen for bleed — a trace of vocal leaking into the "other" stem, or a hint of another instrument where it should not be. This is a known, honest limitation of AI separation, more common on dense or heavily processed mixes, and it is easier to notice and account for early than after you have mixed around it.

Second, unmute all four stems at unity gain and listen to them summed together against the original track. Because the stems are sample-aligned, the sum should sound very close to the source, aside from minor separation artifacts. If the summed result sounds noticeably thin, hollow, or phasey compared to the original, double-check that all four tracks are still starting at the same position — a shift of even a few samples between stems can introduce audible phase cancellation when they are played back together.

Setting your tempo and grid with the BPM detector

With the stems aligned and imported, the last step is making your session's grid match the music. Run the original track through the BPM detector to get a tempo estimate along with a confidence score and half- or double-time alternatives — useful if the detected tempo feels off by exactly a factor of two, a common ambiguity in tempo detection. Set your DAW's project tempo to that value, and the beat grid will line up with the stems you just imported, ready for you to build additional parts, loops, or edits around them.