Hiss Remover for Audio & Video
A constant high-frequency hiss behind your recording? StemSplit's AI removes tape hiss, microphone hiss, and white-noise hiss while keeping your voice clear — no plugins, noise prints, or re-recording.
Start free: Get 5 minutes free when you sign up — your track starts processing immediately!
How do you remove hiss from a recording?
To remove hiss from a recording, upload your audio or video to an AI hiss remover, let it separate the voice from the steady high-frequency noise, and download the clean file. AI tools work in the browser in one click; in editing software you can apply a denoise or noise-reduction effect using a captured hiss profile. Most hiss is steady broadband noise from tape, mic preamps, or high gain, so a constant hiss cleans up very well, while loud hiss buried under quiet speech can be reduced but not fully restored.
How to remove hiss with StemSplit
Three steps, no audio-editing experience needed:
- 1Upload your fileDrag in any audio or video file — interviews, podcasts, voiceovers, digitized cassettes, or screen recordings with a constant hiss underneath.
- 2Let AI remove the hissStemSplit detects the steady high-frequency hiss and reduces it while keeping the natural tone of the voice.
- 3Download clean audioCompare before and after and download your hiss-free file. No plugins, noise prints, or re-recording.
Depending on your gear, there are four common ways to fix background hiss:
1. AI hiss remover (fastest)
Browser tools like StemSplit isolate the voice and strip the hiss automatically — ideal for fast, clean results with no editing skills.
2. Denoise effect in editing software
In Adobe Premiere Pro or Audition apply DeNoise or the Noise Reduction effect; in DaVinci Resolve or Final Cut Pro turn on Voice Isolation and raise the amount until the hiss fades.
3. Noise reduction with a noise print in a DAW
In Audacity or Pro Tools, sample a silent section that contains only the hiss to capture a noise profile, then apply noise reduction across the whole clip — a solid fallback when no AI tool is on hand.
4. Fix it at the source
If you can re-record, set proper gain and use a quieter signal chain (see the tips below): preventing hiss is always easier than removing it.
What causes hiss?
Hiss is steady, broadband high-frequency noise that creeps into a recording from analog tape, noisy microphone preamps and audio interfaces, cranked input gain on a weak signal, or cheap electronics with a high noise floor. Because it sits across a wide band of frequencies rather than one fixed pitch, hiss overlaps the bright detail of a voice — so a light, constant hiss cleans up beautifully, while loud hiss layered over quiet speech can be reduced but is harder to remove without dulling the audio.
How to prevent hiss when recording
A few changes stop hiss before it starts:
- Set your input gain so the signal is strong without clipping, so you don't have to boost — and amplify hiss — later.
- Use a quality audio interface or preamp; cheap, noisy preamps add hiss to every take.
- Record digitally rather than to analog tape, and use good A/D converters to keep the noise floor low.
- Position the mic closer to the source so you can record at lower gain and capture less background hiss.
Hiss remover FAQ
Common questions about removing hiss from audio.
Can AI really remove hiss from a recording?
Yes. StemSplit's AI separates the voice from background noise, including steady hiss, then rebuilds a clean voice track. A light, constant hiss cleans up very well; loud hiss buried under quiet speech can be reduced but not always fully restored.
Can hiss be removed completely?
A steady, moderate hiss can be reduced until it's inaudible. Loud hiss layered over quiet speech can be improved but not removed entirely, because it overlaps the same high frequencies as the voice. For the best result, also follow the prevention tips when you re-record.
Can it remove tape hiss from old cassette or vinyl recordings?
Yes. Digitize the cassette, reel, or vinyl rip first, then upload the file — StemSplit treats tape hiss like any other steady broadband noise and reduces it while keeping the voice or music clear.
Is the hiss remover free?
You get 5 free minutes when you sign up, no card required. After that StemSplit is pay-per-minute with no subscription, so you only pay for what you clean.
What file formats are supported?
StemSplit supports MP3, WAV, FLAC, M4A, OGG, WEBM, and MP4. Audio is processed at studio sample rates and exported as a high-quality file.
Remove hiss from your recording
Upload any audio or video and cut the hiss in seconds. 5 free minutes when you sign up, no card required.