Free trial
New accounts get 20 one-time trial credits valid for 30 days with no card required, covering about 2 minutes of Standard separation. Advanced Overlap is excluded until a purchase is completed.
Learn moreSeply
Split one recording into a separate, time-aligned WAV track for each voice.
Beginner
What is Seply?
Seply is an audio editing tool. Seply separates a single mixed conversation into one time-aligned WAV per detected speaker, with automatic or manual speaker counts, a Standard mode and an Advanced Overlap mode for crosstalk. Audio and video uploads are accepted and results are previewed before download.
Seply is a browser based speaker separation service. You upload a mixed conversation (a podcast, an interview, a panel, a meeting) and the tool returns a distinct audio track for every voice it detects. The tracks are time aligned, meaning each file begins at the same point as the original recording, so a dialogue edit stays in sync when the stems are dropped into a DAW or a video editor. Speaker count can be detected automatically or set by hand when you already know how many people are on the tape. The workflow is deliberately narrow. There is a Standard mode for ordinary turn taking conversations and an Advanced Overlap mode aimed at crosstalk and simultaneous speech, which costs considerably more credits and only unlocks after a purchase. Supported input covers common audio formats plus video containers, and an uploaded video contributes only its original audio track without re-encoding. Output is WAV only: no edited or dubbed video is produced, so the video workflow means pulling the voices out and muting the original mix in your editor. Seply draws a clear line between separation and diarization. Diarization tells you who spoke when and belongs with transcription; separation gives you actual editable files. That distinction is the honest core of the product's positioning, and the tool is candid that results degrade with noise, echo, similar sounding voices and heavy overlap, where traces of the other speaker can survive in a track. It is also built for speech rather than music, so splitting singers from a song is out of scope. Pricing runs on credits. Standard separation uses 10 credits per started minute with a 10 credit minimum, and the estimate is shown before processing. Credits arrive through monthly or annual plans, or through one time packs that stay valid for 12 months. Free trial credits expire after 30 days. Original media and finished tracks are held privately for 30 days. It suits podcast and interview editors more than music producers.
How do you use Seply?
1Sign in and upload your recording
Create an account to unlock the upload area, then choose an audio file (WAV, MP3, M4A, AAC, FLAC and others) or a video file (MP4, MOV). Uploads are capped at 1 GB, and compatible videos contribute only their original audio track.
2Set the speaker count
Let Seply detect speakers automatically, or enter the number you expect when you already know how many people are on the recording. Choose Standard for turn taking conversation.3Review the estimate and run the job
The server calculates media duration and shows the credit estimate before processing. Standard costs 10 credits per started minute; Advanced Overlap costs 60. Confirm to start the separation.4Preview each speaker track
Once the job completes, switch between the original mix and the isolated voices to hear how clean each one is. Pay attention to overlaps, where some of the other speaker may still be audible.5Download the tracks you need
Export individual time-aligned WAV files from your history. Results stay privately available for 30 days; for video projects, mute the original mixed audio so it does not play twice.
6Plan a harder job with the guides
If the recording has heavy crosstalk or you only need one person, read the matching guide first to choose between Standard, Advanced Overlap and a single speaker download.
Pros and cons
Pros
- Produces individual, time-aligned WAV files rather than speaker labels, so stems drop straight into an editorAI
- Acceptance of video containers alongside audio saves a manual extraction stepAI
- Estimated credit cost is displayed before processing and failed jobs return their creditsAI
- Advanced Overlap mode explicitly targets interruptions and simultaneous speechAI
- Clear published credit rates and refund window for unused purchased creditsAI
Cons
- Output is WAV only and no edited or dubbed video is exportedAI
- Advanced Overlap costs 60 credits per started minute, six times the Standard rate, and requires a purchase firstAI
- Quality drops with noise, echo, similar voices and heavy overlap, and residual crosstalk can remainAI
- Separation is for speech only, so music and singing are outside its scopeAI
- Trial credits cover roughly two minutes of Standard separation, which is thin for testing a full episodeAI
How much does Seply cost?
Pricing
Free trial: 20 one-time credits, valid 30 days, no card. Monthly plans: Starter $12 (200 credits), Creator $29 (600), Studio $65 (1,500); annual billing cuts about 17%. One-time packs: 200 credits $16, 600 credits $39, 1,500 credits $89, valid 12 months. Standard separation is 10 credits per started minute (10 minimum); Advanced Overlap 60 per minute (60 minimum).
Learn moreFeatures
Automatic or manual speaker detection, an independent time-aligned WAV track per speaker, and both audio and video uploads (up to 1 GB) with no manual cutting. A Standard mode handles ordinary conversation while Advanced Overlap targets interruptions and simultaneous speech. Results can be previewed against the original mix before download, processing is private, tracks remain accessible for 30 days, and speech to text with speaker labels and timestamps is available on the same credit system.
Frequently asked questions about Seply
How much does Seply cost?
Free trial: 20 one-time credits, valid 30 days, no card. Monthly plans: Starter $12 (200 credits), Creator $29 (600), Studio $65 (1,500); annual billing cuts about 17%. One-time packs: 200 credits $16, 600 credits $39, 1,500 credits $89, valid 12 months. Standard separation is 10 credits per started minute (10 minimum); Advanced Overlap 60 per minute (60 minimum).Does Seply offer a free trial?
New accounts get 20 one-time trial credits valid for 30 days with no card required, covering about 2 minutes of Standard separation. Advanced Overlap is excluded until a purchase is completed.How do you use Seply?
The walkthrough on this page covers 6 steps: 1. Sign in and upload your recording 2. Set the speaker count 3. Review the estimate and run the job 4. Preview each speaker track 5. Download the tracks you need 6. Plan a harder job with the guides.What platforms does Seply support?
Seply is available on Web App.What are the limitations of Seply?
Output is WAV only and no edited or dubbed video is exported. Advanced Overlap costs 60 credits per started minute, six times the Standard rate, and requires a purchase first. Quality drops with noise, echo, similar voices and heavy overlap, and residual crosstalk can remain.
Status
StatusActive
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Added10/21/2026
Platforms
Web App
Pricing
FreemiumSubscriptionPaid
