AIVoiceSeparator vs Krisp Voice Isolation
AIVoiceSeparator
aivoiceseparator.com
Krisp Voice Isolation
krisp.aiSide by side
| Figure | AIVoiceSeparator | Krisp Voice Isolation |
|---|---|---|
| Price from | $30/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 4 | 2 |
| Spec score · AI Voice Isolators | 8.5 (#6) | 7.8 (#10) |
| Integrations | The API page says it is listed on the RapidAPI marketplace and accepts links from YouTube, SoundCloud, TikTok, Bandcamp and Vimeo. | Krisp lists LiveKit, Pipecat, and raw WebRTC pipelines as supported integrations, and says the SDK works with any STT engine. |
| Security | The privacy policy says traffic is encrypted via Cloudflare HTTPS and temporary files are stored on a private machine accessible only via Cloudflare Tunnel. | Krisp directs customers to its Trust Center for details about security practices, compliance standards, policies, controls, and security documentation. |
| Support | The API page directs users to contact the maker for dedicated capacity when batch throughput requires more than its single-GPU queue. | The Enterprise developer plan includes dedicated engineering support and custom SLAs. |
Plans
AIVoiceSeparator
- FreeFree
- API credits$0.50, paid once
- Credits$0.50, paid once
- Pro$30 a month
Krisp Voice Isolation
- Early stagePriced on request
- EnterprisePriced on request
In their own words
AIVoiceSeparator
AIVoiceSeparator separates songs into vocal and instrumental stems for backing tracks or clean vocals. Its Studio pipeline combines BS-Roformer, Mel-Roformer, and MDX23C, then applies EBU-R128 loudness normalization. The maker reports an SDR of 12.97 dB and says this is roughly 3 dB above the open Demucs baseline. The web app accepts audio and video files up to 100 MB and 20 minutes in formats including MP3, WAV, M4A, FLAC, OGG, WebM, Opus, and MP4/MOV. You can submit YouTube or SoundCloud links; TikTok clips must be saved and uploaded. Optional Whisper transcription returns SRT, LRC, and TXT files and adds about 30 seconds to processing. A REST API accepts a URL or upload and returns both stems. The free plan allows three songs per month when signed in; pay-as-you-go credits cost $0.50. The maker says uploads and results are deleted within 24 hours and audio is not used to train AI models.
Krisp Voice Isolation
Krisp Voice Isolation is a real-time voice model in Krisp VIVA, infrastructure for voice AI agents. It separates a main speaker from other voices, background chatter, and room echo before audio reaches speech-to-text processing. Krisp says Voice Isolation 2.5 runs on CPU with 15 ms latency and reduced word errors by 46% in its benchmark. The VIVA SDK also includes Turn Prediction, Interruption Prediction, Voice Activity Detection, and detectors for accent, gender, and synthetic speech. It runs server-side on premises or in a customer's cloud, ahead of the speech-to-text engine, and is designed to work with any STT engine. Listed integrations include LiveKit, Pipecat, and raw WebRTC pipelines. SDKs are listed for Python, Node.js, Go, and iOS; input and output are PCM S16LE, 16 kHz mono. The broader AI Voice SDK library supports Windows, Mac, Linux, web, iOS, and Android.