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Clean voice from mixed audio

AI Vocal Isolator

Bring dialogue, interviews, narration, or live vocals forward from background music and a dense mix. Preview the exact passage first, then keep the full result only when it is useful.

Isolate a VoiceHear a Real Demo
30MBfree upload
30 secfree preview
Shownfile deadline

Separation job

Outputs vocals, drums, bass, and other.

Secure upload → AI separation → Preview → Download. Free previews use up to 75 seconds around your selection; 1 credit processes the full track.

Compare previews0:00–0:30 preview
1

Upload the audio from your project

Use MP3, WAV, FLAC, M4A, AAC, or OGG. For video, export its audio track first; StemSlice does not upload the video container.

2

Choose the dialogue or vocal passage

Place the preview over speech under music, a live line, or another difficult moment. The free job processes up to 75 seconds around that choice.

3

Review before downloading the full recording

Compare the original and predicted vocal for 30 seconds. One credit unlocks full-track processing when the isolation suits the edit.

Hear real separation examples

These recordings are licensed under CC BY 4.0. Compare each available result with its original at the same timestamp. User uploads remain private and are never added here.

Bring spoken words and mixed vocals forward

Test dialogue under music, a podcast bed, a live line, or video narration without pretending the original microphone track can be recovered.

Built for mixed voice material

Evaluate interviews, podcasts, narration, live singing, and dialogue mixed under music without claiming access to the original microphone track.

Timeline-safe editorial handoff

Results share the original source start so editors can return the isolated vocal to a video, transcript, or audio timeline without manual guessing.

Four true stems

Vocals, drums, bass, and other instruments are exported as separate files you can drop into a DAW.

DAW-friendly formats

Paid downloads support WAV, FLAC, and 320kbps MP3 without watermarking. WAV and FLAC are workflow-friendly conversions from the separated MP3 audio.

Private by default

Uploads and generated results are encrypted in storage. The page shows the access deadline, including the later deadline granted after a paid result becomes ready; automated cleanup removes expired objects afterward.

No subscription required

Buy credits once and use them whenever. One complete 7-file package costs 1 credit.

An editorial workflow for voice inside a finished mix

Keep timing, source records, realistic restoration limits, and the final listening review together.

Separate spoken words from a music-heavy edit

Editors often receive a single mixed file instead of separate dialogue and music tracks. A vocal isolator can predict the voice portion so an interview quote, narration, or on-camera line is easier to hear and edit. It is not the same as recovering the microphone recording from the original session: music, room tone, and effects that overlap speech may leave traces. Choose a 30-second excerpt where the speaker and background compete, compare the predicted vocal with the original at the same timestamp, and decide whether the result is clean enough for a rough cut, transcript, or final handoff.

Create a clearer podcast or interview edit

A published podcast may contain theme music, beds, stings, remote-call artifacts, and two or more speakers in one stereo file. Isolating the vocal family can reduce the musical layer and make words easier to review, but it does not separate one speaker from another. Keep the original mix nearby, mark the lines you need, and listen to consonants, word endings, and pauses before applying any gate or denoiser. For archival or broadcast work, request the original dialogue tracks whenever possible; the isolated result is a practical fallback when only the mixed recording is available.

Pull dialogue forward from video audio

Export the audio track from a video editor in a supported format, then upload that audio file rather than the video container. StemSlice accepts MP3, WAV, FLAC, M4A, AAC, and OGG; it does not ingest a video file directly. After isolation, place the result at the same start time as the picture so lip sync stays intact. Use it for dialogue review, captions, a replacement voiceover guide, or a social edit, then return to the original timeline for final mixing. Always confirm that you have permission to process and reuse the recording.

Inspect live vocals without pretending the room disappears

Concerts, event recordings, and rehearsal videos are difficult because the singer, PA system, audience, stage monitors, and room reflections reach the same microphones. The vocal prediction may make lyrics and phrasing easier to hear, yet crowd noise or instruments can remain and some ambience can follow the voice. Test a passage with direct singing, another with applause or cymbals, and a sustained note with a long decay. If the goal is a polished release rather than reference listening, treat the output as an editing source that may still need careful restoration and human review.

Prepare voiceover and commentary material responsibly

An isolated line can become a guide track for dubbing, commentary timing, translation, or an internal edit. Technical access does not grant permission to republish a person’s voice or a copyrighted soundtrack. Record the source, project, timestamp, intended use, and consent status before the clip moves to another editor. Avoid presenting a prediction as a pristine original microphone file. A clear filename such as “isolated-dialogue-reference” sets the right expectation and helps collaborators distinguish the AI-derived result from production audio supplied by the rights holder.

Know the difference between isolation and noise reduction

The model separates a vocal category from drums, bass, and other musical content. It is not a dedicated de-reverberation, de-click, wind-removal, or broadband-noise tool. Constant hiss, room reflections, and sounds shaped like speech may remain in the vocal result. Start by isolating the voice, then apply conservative restoration to a duplicate if the intended workflow requires it. Compare at matched loudness so a louder file is not mistaken for a cleaner one, and stop when processing begins to damage sibilants, breaths, or natural pauses.

Keep picture, transcript, and isolated audio synchronized

Every exported stem begins from the same source timeline. Preserve that start position when returning the vocal to a video editor or transcript tool. Trimming silence at the beginning can shift captions, edits, and replacement dialogue even when the isolation itself is correct. Store the original mix, isolated vocal, project frame rate, and a short note about the tested excerpt together. For a long interview, verify sync near the beginning and end after import, especially if another application converts sample rate or applies automatic time stretching.

Select the hardest useful line, not the quietest opening

Place the free preview over the moment that will determine whether the edit works: speech under music, a noisy live line, or a transition from dialogue into ambience. StemSlice processes up to 75 seconds around that selection to create a 30-second preview. If the result is suitable, one credit unlocks full-track processing and the complete seven-file package. One-time credits do not expire, while the task itself shows a temporary file-access deadline and expired files are removed automatically.

Use the free result as an audition, then review the full recording

A selected excerpt can show whether the voice is intelligible enough to continue, but a long interview or performance can change microphones, rooms, speakers, music level, and background noise. After unlocking, review every editorially important section before replacing the mix or sending a transcript. Download the chosen WAV, FLAC, or MP3-320 result before the displayed deadline. WAV and FLAC are workflow conversions from the separated compressed audio; they do not recreate information missing from the source or prediction.

Credits that do not expire

1 credit unlocks 4 stems plus drumless, bassless, and instrumental mixes. Previewing, listening, and failed processing jobs do not consume credits.

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FAQ

Answers for free limits, formats, privacy, copyright, and download quality.

Can a vocal isolator remove reverb completely?

Not reliably. Reverb may be part of the vocal production or shared with the room and other sounds. The vocal can become easier to hear while some ambience remains, so preview a sustained word and its decay before relying on the result.

How is a vocal isolator different from a vocal remover?

This page focuses on keeping the voice for dialogue, interview, narration, and live-vocal work. A vocal remover focuses on keeping the music without the singer for karaoke or backing tracks. The same four-stem job provides both sides.

Can I upload a video file to isolate its dialogue?

Upload the audio track rather than the video container. Export MP3, WAV, FLAC, M4A, AAC, or OGG from the video editor, isolate the vocal here, and return it to the same timeline start so picture sync is preserved.

How much can I try for free?

The free path accepts audio up to 30MB and 6 minutes. It processes up to 75 seconds around your selected passage and returns a 30-second preview without using a credit.

Will isolated dialogue or singing sound distorted?

Quality depends on the source. Clear speech over light music is usually easier than clipped phone audio, crowd-heavy live recordings, or voice mixed with loud cymbals. Use the preview to check consonants, pauses, and ambience in the exact passage you need.

Related toolsIsolate VocalsAcapella ExtractorStem Splitter

Extracted stems remain the property of the original rights holders. Commercial use requires their permission.